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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 73 | MEASURING AND TESTING |
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1.01 | INSTRUMENT PROVING OR CALIBRATING |
1.02 | Gas or liquid analyzer |
1.08 | Dynamometer |
1.09 | Torque |
1.13 | Weight |
1.14 | Rotor unbalance or a roller having a smooth surface |
1.15 | Load cell (e.g., strain gauge or piezoelectric sensor) |
1.16 | Volume of flow, speed of flow, volume rate of flow, or mass rate of flow |
1.17 | Plug with leak detector |
1.18 | Sphere |
1.19 | Piston |
1.24 | Tracer |
1.25 | Orifice or restriction |
1.27 | Turbine, geared meter, pulse activated, or counter |
1.29 | Anemometer or pitot tube |
1.31 | With liquid level monitor or timer |
1.33 | With floating element or weighing |
1.34 | With signal processing, span or set point adjustment (e.g., zero correction) |
1.35 | With pressure measurement or plural flowmeters |
1.36 | Metering dispenser |
1.37 | Speed, velocity, or acceleration |
1.42 | Timing apparatus (e.g., fuse, camera, or shutter) |
1.43 | Chronometer (e.g., clock, watch, or watch unbalance) |
1.44 | Using antenna or radio frequency (RF) |
1.45 | Using optical sensor or element |
1.48 | Using sound sensor or piezoelectric vibration sensor |
1.52 | Plural watches |
1.53 | With resilient element |
1.56 | Optical instrument (e.g., camera shutter) or optical sensor |
1.57 | Fluid pressure |
1.58 | Vacuum |
1.59 | With signal correction or processing |
1.65 | Dead weight type |
1.66 | Varying |
1.68 | With piston and cylinder |
1.69 | Using or containing liquid |
1.71 | Pressure activated device |
1.73 | Liquid level or volume measuring apparatus |
1.75 | Angle, direction, or inclination |
1.79 | Displacement, motion, distance, or position |
1.82 | Apparatus for measuring by use of vibration or apparatus for measuring vibration (e.g., acoustic or ultrasonic) |
1.83 | Liquid |
1.84 | Rotary or rotor unbalance |
1.85 | Seismic (e.g., geophone) or with optical sensor |
1.86 | Reference standard detail |
1.87 | Centrifuge |
1.88 | Span or set point adjustment (e.g., zero correction) |
1.89 | Roughness or hardness |
7 | BY ABRASION, MILLING, RUBBING, OR SCUFFING |
9 | FRICTIONAL RESISTANCE, COEFFICIENT OR CHARACTERISTICS |
11.01 | TESTING IMPACT DELIVERING DEVICE (E.G., A HAMMER) |
11.04 | TESTING OF SHOCK ABSORBING DEVICE (E.G., AUTOMOBILE SHOCK ABSORBER, GUN RECOIL APPARATUS, ETC.) |
11.05 | Torsional vibration damper |
11.06 | Railway draft gear |
11.07 | In situ vehicle suspension |
11.09 | By applying reciprocating or oscillating motion |
12.01 | TESTING BY IMPACT OR SHOCK |
12.02 | Resilient ball (e.g., golf ball, baseball, etc.) |
12.03 | Typewriting ribbon or carbon paper |
12.04 | Accelerated or decelerated specimen (e.g., propelled or dropped specimen support carriage) |
12.08 | Specimen directly subjected to a fluid pressure pulse or wave |
12.09 | Specimen impactor detail |
19.01 | GAS CONTENT OF A LIQUID OR A SOLID |
19.02 | By gas chromatography |
19.03 | By vibration |
19.04 | By rate of flow of the gas |
19.05 | By pressure of the gas |
19.07 | Of metal |
19.08 | Of concrete, mortar, or plastic while in a fluent state |
19.09 | Of mud |
19.1 | Of a liquid |
19.12 | Particular separator |
23.2 | GAS ANALYSIS |
23.21 | With compensation detail (for error or drift correction, etc.) |
23.22 | For gas chromatography |
23.28 | For density or specific gravity |
23.3 | Breath analysis |
23.31 | Gas of combustion |
23.34 | Odor |
23.35 | Gas chromatography |
23.36 | With electrical computer or data processor control |
23.37 | With spectrometer |
23.38 | Petrochemical |
23.39 | Column detail |
23.4 | Detector detail |
23.41 | Including sample preparation or sampling |
23.42 | Detail of gas handling means |
24.01 | By vibration |
24.02 | Produced by radiant energy |
24.03 | Solid content of gas |
24.04 | Moisture content or vapor pressure of gas |
24.05 | Density or specific gravity of gas |
24.06 | Detector detail |
25.01 | By thermal property |
25.02 | With magnetic property (e.g., paramagnetic gas) |
25.03 | Thermoconductivity |
25.04 | Moisture content or vapor pressure |
25.05 | Detector detail |
28.01 | Solid content of gas |
29.01 | Moisture content or vapor pressure |
29.02 | Hygrometer |
335.01 | With optical element |
335.02 | With electric circuitry or electric circuit component detail |
335.06 | Wet and dry responsive elements |
335.11 | Expanding-sorption element |
29.03 | Pressure |
29.04 | With visual indication |
29.05 | Detector detail |
30.01 | Density or specific gravity |
31.01 | Ambient air |
31.03 | Impurity |
31.04 | Pressure |
31.05 | Detector detail |
31.07 | Particular separator |
32R | SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID |
433 | With weighing feature |
438 | Hydrostatic pressure type |
440 | Multiple floats of graduated density |
441 | Portable hand manipulable syringe type |
444 | Freely vertical reciprocable float with carried indicium |
445 | Continuous test fluid supply |
446 | With section means |
447 | With liquid level responsive gauge or compensator |
448 | Float structure |
451 | Float operated indicator |
32A | Involving vibration of substance or the measuring apparatus |
35.01 | ENGINE DETONATION (E.G., KNOCK) |
35.02 | Fuel rating (e.g., octane rating) |
35.03 | Combustion signal compared to reference signal varied by a condition of the engine |
35.06 | Combustion signal compared to a fixed reference signal or utilizing a threshold value |
35.07 | Specific type of detonation sensor |
35.14 | EXPLOSIVE |
35.15 | By time measurement (e.g., burning rate, detonation velocity) |
35.16 | Electric sensor |
35.17 | Safety feature or containment structure |
36 | ILLUMINATING FLUID |
37 | WITH FLUID PRESSURE |
37.5 | Dimension, shape, or size |
38 | Porosity or permeability |
39 | Fluid pressure brake system or unit |
40 | Leakage |
40.5R | Fluid handling conduit in situ |
40.7 | By probe gas, vapor, or powder |
41 | Conveyor feed |
45.5 | With immersion |
46 | Between fitted parts (e.g., joints) |
49 | Pneumatic tire |
49.1 | Pipe |
49.2 | Receptacle |
49.4 | With ram pressure inducer |
49.5 | Pipe |
49.7 | Motor part or auxiliary |
49.8 | Clamp, plug, or sealing feature |
52 | TESTING SEALED RECEPTACLE |
53.01 | LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID |
53.02 | Butter fat content |
53.03 | Paper or wood suspension (e.g., paper or wood pulp) |
53.04 | By measuring fluid flow characteristic (e.g., by volume or rate of flow or by change in fluid level) |
53.05 | Lubricant testing |
54.01 | Viscosity |
54.02 | Combined with other measuring means |
54.03 | Of concrete (e.g., slump indicator) |
54.04 | Friction tube (e.g., capillary) |
54.05 | Plural tubes |
54.07 | By time interval of travel or flow rate measuring |
54.09 | By pressure measuring |
54.11 | Orifice, nozzle, or extrusion means |
54.12 | Plural fluids (e.g., comparison) |
54.13 | By time interval of travel or flow rate measuring |
54.14 | By force, pressure, or displacement measuring |
54.15 | Gravity movement of an object in a liquid (e.g., a bubble) |
54.16 | With detail of temperature or pressure regulating or compensating means |
54.17 | Using a reference fluid |
54.18 | With means for restoring an object to its initial starting position (e.g., magnetic or fluid means) |
54.19 | Including detail of a timing detection circuit |
54.21 | Including an object concentricity guide means |
54.22 | Adhesion between wetted surfaces |
54.23 | Force reactance to member driven therein |
54.24 | By vibration |
54.25 | Dampening effect (e.g., frequency, amplitude, speed, or power measurement) |
54.27 | With detail (e.g., circuitry) of a drive means or a detecting means |
54.28 | Rotationally driven member |
54.29 | Comparator |
54.31 | By measuring the driving force or the speed of the driven member |
54.32 | By measuring an opposed drag force |
54.35 | Including detail of a motor drive, a stator, or a housing structure of a motor |
54.36 | Penetrometer |
54.37 | By movement or displacement between shearing surfaces |
54.38 | Detector detail |
54.39 | Shearing torque between parallel surfaces |
54.41 | Vibration |
54.42 | Thermal |
54.43 | With detail of a pressure or a temperature regulating means |
60.11 | Cleaning or foaming ability |
61.41 | Content or effect of a constituent of a liquid mixture |
61.42 | Metallic particle constituent |
61.43 | Liquid constituent of a liquid mixture |
61.44 | Plural liquid constituent (e.g., multiphase liquid) |
61.46 | By thermal measurement |
61.47 | By pressure measurement |
61.48 | By optical irradiation |
61.49 | By vibration |
61.51 | Buoyant detector |
61.52 | Chromatography |
61.53 | Column detail |
61.54 | Paper or thin layer type |
61.55 | Including sampling, sample handling, or sample preparation |
61.56 | Detail of fluid handling means (e.g., valve, control, etc.) |
61.57 | With detail of compensation or regulating means |
61.58 | Detector detail |
61.59 | With detail of sampling, sample handling, or sample preparation |
61.61 | Detector detail |
61.62 | Depositing characteristic |
61.63 | Settling or filtering ability |
61.71 | For measuring solid components (e.g., particles) |
61.72 | By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.) |
61.73 | By flowing through barrier or restriction and measuring flow effect (e.g., pressure, volume of or rate of flow) |
61.75 | Vibration |
61.76 | By thermal measurement |
61.78 | By pressure measurement |
61.79 | By vibration |
64.41 | Gelling or coagulation |
64.44 | Vapor-liquid ratio |
64.45 | Vapor pressure |
64.47 | Osmotic pressure (e.g., diffusion characteristic) |
64.48 | Surface tension |
64.53 | By vibration |
64.54 | Molecular weight |
64.55 | Interface |
64.56 | Sampler, constituent separation, sample handling, or sample preparation |
65.01 | CENTER OF GRAVITY; TURNING MOMENT; METACENTRIC HEIGHT |
65.02 | Spherical specimen |
65.03 | Ball driving sporting implement (e.g., golf club, baseball bat, etc.) |
65.04 | Watercraft (e.g., metacentric height) |
65.05 | Air or space vehicle |
65.07 | Dynamic |
65.09 | Electric sensor |
66 | ROTOR UNBALANCE |
455 | Propeller, impeller, or fluid coupling |
457 | In situ |
459 | Combined static and dynamic |
460 | Dynamic (spinning) |
461 | Mass centering |
462 | With electrical sensor and indicator |
468 | With counterbalancing means |
469 | By radially and circumferentially adjustable weights |
470 | By circumferentially adjustable weights |
471 | With vibratable mount feature |
480 | Gravitational moment turns rotor about spin axis |
482 | Gravitational moment tilts rotor about axis transverse to spin axis |
487 | Tool and adjunct |
570 | VIBRATION |
570.5 | Acoustic levitation |
571 | Test chamber |
572 | Loose object detection |
573 | Hardness or compliance |
574 | Mechanical impedance |
577 | Fatigue study |
579 | Resonance, frequency, or amplitude study |
580 | Including weight determination |
581 | Including axial force determination |
582 | Including structural bond evaluation |
583 | Of aircraft or related structural element |
584 | By mechanical waves |
585 | Including ear or hearing testing |
586 | Reverberation |
587 | Acoustic emission |
588 | Structural bond evaluation |
589 | Acoustical impedance |
590 | In detection of a liquid reaction, a chemical reaction, or a nuclear reaction |
591 | Listening or sound tube |
592 | Fluid, fluid leak, or pipe flaw detection |
593 | Bearing, gear, or related moving mechanism |
594 | Soil or building structure |
595 | Frangible |
596 | Beamed |
597 | Velocity or propagation time measurement |
599 | Attenuation measurement |
601 | Having plural, diverse forms of radiant energy |
602 | With signal analyzing or mathematical processing |
603 | Acoustic holography |
606 | Imaging of discontinuity with stationary sonic transmitter |
609 | Measuring or testing system having threshold, gating, delay, or blocking means |
610 | Electronic gating |
611 | Adjustably responsive to information signal |
612 | Plural gating |
613 | Of noise |
614 | Of signals to pass only echoes from within test body |
615 | Of signals to pass only echoes from front surface or flaw and from rear surface of test body |
616 | Of signals to pass only echoes from rear surface of test body |
617 | Having mechanical delay or mechanical blocking |
618 | Measuring or testing system having scanning means |
627 | By reflected wave |
628 | Having plural sonic type transmitters or receivers tranducers |
629 | Having unitary sonic type transmitter-receiver transducer |
632 | Sonic wave transmitter or receiver transducer |
633 | Having transducer scanning means |
634 | Automatic transducer positioning |
635 | Rolling contact |
636 | On railroad rails |
637 | Around cylindrical object |
638 | Along cylindrical object |
639 | Transducer forms wheel or is within a wheel |
640 | Scanning curved surface in direction of curvature |
641 | Plural sonic transmitters or receivers |
642 | Having wave shaping means |
643 | Nonvibrating transducer |
644 | Having significant coupling means |
645 | Acoustic parameter |
649 | Sensing apparatus |
650 | Torsional |
651 | Vibratable reed |
652 | With inertia element |
655 | With light beam indicator |
658 | With electrically controlled indicator |
662 | Vibrator |
73 | MOISTURE CONTENT OR ABSORPTION CHARACTERISTIC OF MATERIAL |
74 | By residual capacity measurement |
75 | By heat conductivity |
76 | By desiccation or extraction |
77 | By wet and dry bulb temperature |
78 | HARDNESS |
86 | EMBRITTLEMENT OR EROSION |
87 | DUCTILITY OR BRITTLENESS |
760 | SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION |
761 | Threaded fastener stress |
762 | Indicating coating or sheet providing direct visual indication (e.g., cracking, color change) |
763 | Specified electrical sensor or system |
764 | Having level attainment counter |
765 | Compensation (e.g., linearization) |
767 | Plural sensors at single location (e.g., diverse orientation, plural level) |
768 | Sensor embedded in specimen |
769 | Coupling circuit for specific additional purpose (e.g., noise suppression) or having specified structure |
770 | Peak indicating system |
771 | Having selector switching means |
772 | Plural sensed signal system |
773 | Specified signal transmitting link |
774 | Specified sensor structure |
781 | Specified load or strain transmission device from specimen to electrical detector |
783 | Deformation or change in stress after fracture, cutting, or boring |
784 | Earth stresses |
785 | Prestressed specimen |
786 | In static structures (e.g., buildings, bridges) |
787 | Stress or strain history of a specimen without application of a load |
788 | By loading of specimen (e.g., strength of material test) |
789 | Stress-strain relationship determination |
794 | Plural diverse stress-strain tests or composite loads |
799 | Specimen cracking or crack propagation |
800 | Optical |
801 | Acoustic emission |
802 | Aircraft structure |
803 | Concrete |
804 | Model of structure to determine structure properties |
805 | Varied in response to specimen condition other than failure |
806 | Varied according to predetermined pattern |
807 | Applied directly by fluid pressure |
808 | Repetitive |
809 | Plural specimen |
810 | To failure |
811 | Electric control circuit or particular loading device |
812 | Flexing, bending, or folding |
813 | Compressive |
814 | Torsional |
815 | Shear |
816 | Hydraulic or pneumatic actuation |
817 | Motor driven actuating screw |
818 | Compressional |
819 | Plural specimen or multiaxial loading |
820 | Fluid displacement provides indication |
821 | To fracture, crushing, or yield point |
822 | Plastic flow or creep |
823 | Residual deformation (e.g., consolidation) |
824 | By rotating squeezing element |
825 | With hydraulic or pneumatic actuation |
826 | Tensile |
827 | Bond test |
828 | Strand or chain test |
831 | Having specified clamp |
834 | To failure |
836 | Pendulum dynamometer |
837 | Hydraulic or pneumatic actuation |
838 | Rupture or burst strength of sheet material by transverse loading |
841 | Shear |
842 | Bond |
843 | By rotary element |
844 | Impact (e.g., pendulum) |
845 | To fracture or failure |
846 | Opposing work holders including specimen |
847 | Torsion |
849 | Bending, flexing, or folding |
855 | Support, holder, or housing for unspecified type electrical sensing element |
856 | Specimen clamp, holder, or support |
104 | SURFACE AND CUTTING EDGE TESTING |
112.01 | TURBINE ENGINE |
113.01 | STEAM OR WATER OPERATED ENGINE; RELATED ENGINE SYSTEM OR ENGINE COMPONENT |
114.01 | INTERNAL COMBUSTION ENGINE OR RELATED ENGINE SYSTEM OR ENGINE COMPONENT |
114.02 | Irregular combustion (e.g., misfire) |
114.03 | By time variation |
114.04 | By speed variation |
114.05 | By acceleration |
114.06 | By exhaust pressure |
114.07 | By vibration |
114.08 | By ignition measurement |
114.09 | By optical measurement |
114.11 | By torque variation |
114.12 | Having road condition detection |
114.13 | Power output |
114.16 | Compression (i.e., cylinder pressure) |
114.17 | As a mean effective pressure |
114.18 | Pressure sensor detail |
114.22 | Using engine speed |
114.23 | Using starter current |
114.24 | Engine acceleration |
114.25 | Engine speed |
114.26 | Relative rotational position |
114.31 | Monitoring intake air system (e.g., air filter) |
114.32 | Intake flow rate |
114.36 | Throttle position sensor or idling state detection |
114.37 | Intake air pressure |
114.38 | Fuel system or part thereof |
114.39 | With vapor vent or purge |
114.41 | Fuel pump |
114.42 | Fuel flow |
114.43 | Fuel pressure |
114.44 | Carburetor |
114.45 | Fuel injector |
114.52 | Fuel consumption |
114.55 | Lubricant condition |
114.56 | Lubrication system |
114.58 | Electrical system |
114.68 | Cooling system |
114.69 | Exhaust system |
114.71 | Exhaust gas component analysis |
114.74 | Exhaust gas recirculation system (EGR) |
114.75 | Catalyst or catalytic converter |
114.76 | Exhaust pressure |
114.77 | Testing of an individual engine part |
115.01 | VEHICLE DRIVE TRAIN |
115.02 | Transmission |
115.05 | Drive shaft |
115.06 | Rear end (e.g., differential) |
115.07 | Wheel or axle component |
116.01 | TEST STAND |
117.01 | VEHICLE CHASSIS |
118.01 | SIMULATING OPERATING CONDITION |
121 | BRAKE TESTING |
122 | Slidable platform |
123 | Roller or belt wheel support |
124 | Relatively shiftable front and rear wheel supports |
125 | Inertia type |
126 | With driving effort indication |
128 | Road test attachment or adjunct |
129 | Vehicle installation |
130 | Single wheel rotating and resistance measuring means |
132 | Brake depressor with measuring means |
862 | DYNAMOMETERS |
862.01 | For testing force-biased connections |
862.03 | For testing relative pulling power (e.g., for contests) |
862.041 | Responsive to multiple loads or load components |
862.042 | Along or about mutually orthogonal axes |
862.045 | Using a resistance strain gage |
862.046 | Transducer array (e.g., columns and rows) |
862.05 | Applied to guidance means |
862.06 | On machine tools |
862.07 | To determine distribution of tensile stress |
862.08 | Responsive to torque |
862.09 | By absorption |
862.11 | Having plural brake means |
862.12 | Having friction brake means |
862.14 | Having fluid brake means |
862.17 | Having magnetic or electromagnetic brake means |
862.191 | During transmission to an external load |
862.21 | For making or breaking threaded connections (e.g., torque measuring wrenches) |
862.22 | With variable capacity or sensitivity |
862.23 | With detection of specific torque value or condition (e.g., peak torque) |
862.25 | Power tongs |
862.26 | Bending beam type |
862.27 | With recording or totalizing means |
862.28 | With electrical computation of horsepower |
862.29 | By measuring reaction forces of a prime mover |
862.31 | By measuring reaction forces of transmission gearing |
862.321 | By measuring elastic deformation of a torque transmitting member |
862.322 | With rotary to linear conversion |
862.323 | Using a flowing fluid (e.g., using a shaft mounted nozzle and baffle) |
862.324 | Using a light sensor |
862.325 | Using an electrical sensor |
862.37 | By measuring the fluid pressure of a hydraulic coupling |
862.192 | By measuring angular acceleration |
862.193 | By measuring an electrical or magnetic characteristic of a torque delivering electric motor |
862.194 | By measuring tension in a drive belt or chain |
862.195 | By converting transmitted torque into axial force |
862.381 | Responsive to force |
862.391 | To determine tension on a flexible element |
862.41 | By measuring vibrations (e.g., resonant frequency) |
862.42 | By applying a measured tensioning force |
862.451 | By measuring deflection or a deflecting force |
862.452 | For testing racket stringing |
862.453 | For testing a drive belt |
862.454 | Using a fluid for deflection or force measuring |
862.46 | With angular deflection |
862.471 | Using an elastically deformable force measuring means |
862.392 | By measuring axial force or stretch |
862.49 | To determine axial thrust on a rotating machine element |
862.51 | With recording means |
862.52 | With variable capacity or sensitivity |
862.53 | With detection of specific force value or condition (e.g., peak force) |
862.541 | Combined |
862.55 | With pressure applying roller (e.g., mill roll) |
862.56 | With hoisting means |
862.57 | With towing means |
862.542 | With jack or press |
862.543 | With pumping unit |
862.581 | By measuring a fluid pressure |
862.59 | By measuring vibrations (e.g., resonant frequency) |
862.61 | By measuring a counterbalancing or restoring force |
862.621 | By measuring elastic deformation |
862.622 | With compensation |
862.624 | Using a light sensor |
862.625 | Using a specific type of electrical sensor |
862.636 | Specific type of elastic member |
862.68 | By measuring electrical properties |
862.69 | By measuring magnetic properties |
862.382 | With detail of overload protection |
146 | TIRE, TREAD OR ROADWAY |
147 | WIND TUNNEL: AERODYNAMIC WING AND PROPELLER STUDY |
148 | MODEL BASIN AND TESTING TANK |
149 | VOLUMETRIC CONTENT MEASURING |
150R | COATING MATERIAL: INK ADHESIVE AND/OR PLASTIC |
152.01 | BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW) |
152.02 | Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives) |
152.03 | During drilling |
152.05 | Density, porosity, or permeability |
152.08 | Oil, gas, or water saturation |
152.11 | By a core sample analysis |
152.12 | Thermal |
152.14 | With radioactivity measuring |
152.16 | With vibration measuring |
152.17 | With detail of a borehole wall engaging means |
152.18 | Fluid flow measuring or fluid analysis |
152.19 | During drilling |
152.23 | With sampling |
152.29 | Rate of fluid flow |
152.31 | Plural diverse measuring |
152.32 | Vibration |
152.33 | Thermal |
152.34 | Rotary |
152.36 | Packer or deflector detail |
152.37 | Steady state fluid flow interruption |
152.39 | Fluid injection into formation |
152.42 | Determining relative proportion of fluid constituent |
152.43 | During drilling |
152.51 | Pressure measurement |
152.54 | Downhole test |
152.55 | Fluid test |
152.56 | Free point or stuck point |
152.57 | Casing or cementing |
152.58 | Using vibration |
152.59 | By measurement of response due to force |
152.61 | Pump test |
156 | STATISTICAL RECORD VERIFYING |
157 | RECORD STRIP SPROCKET HOLE TESTING |
158 | HOISTING CABLE AND ROPE |
159 | SHEET, WOVEN FABRIC OR FIBER |
161 | SPRING TESTING |
162 | TOOTHED GEAR |
163 | COIN |
164 | MINER'S LAMP |
167 | ORDNANCE AND PROJECTILE |
168 | BLOWER, PUMP, AND HYDRAULIC EQUIPMENT |
169 | FLOUR, DOUGH, OR BREAD |
172 | ORTHOPEDIC PRESSURE DISTRIBUTION |
178R | NAVIGATION |
179 | Rate of climb (pressure type) |
180 | Leeway incidence or side-slip |
181 | Ship's log |
178H | Helicopter |
178T | Take-off and landing monitors |
170.01 | FLUID FLOW DIRECTION (E.G., WIND SOCK, WEATHER VANE, ETC.) |
170.02 | Relative to aircraft or watercraft |
170.04 | Using a drifter or tracer (e.g., smoke) |
170.05 | Using a fluid actuated alignment device (e.g., wind sock, weather vane, etc.) |
170.06 | With illumination means or an electro-optical indicator (e.g., beacon or signal lamp) |
170.07 | With velocity determination |
170.09 | Electric sensor |
170.11 | With velocity determination |
170.16 | METEOROLOGY |
170.17 | Precipitation (e.g., rain gauge) |
170.18 | With recorder detail |
170.19 | With heater or vaporizer |
170.21 | Sensing accumulated amount (e.g, rain gauge) |
170.24 | Electric disturbance (e.g., lightning) |
170.25 | Micrometeorite |
170.26 | Icing condition (e.g., accretion) |
170.27 | Naturally occurring radiation (e.g., solar radiation) |
170.28 | Using unmanned, self-controlled airborne instrumentation carrier (e.g., radiosonde) |
170.29 | OCEANOLOGY (E.G., OCEANS, RIVERS, OR LAKES) |
170.31 | Surface wave |
170.32 | Bottom sediment or soil |
170.33 | Towed probe |
170.34 | Unattached, self-contained probe with buoyancy controlled level of descent |
861 | VOLUME OR RATE OF FLOW |
861.01 | With indirect temperature or density compensation |
861.04 | Of selected fluid mixture component |
861.05 | By measuring transit time of tracer or tag |
861.07 | By measuring tracer concentration |
861.08 | By measuring electrical or magnetic properties |
861.18 | By measuring vibrations or acoustic energy |
861.19 | Produced by fluidic oscillator |
861.21 | Caused by fluid interaction with obstacle |
861.25 | Reflection or scattering of acoustic waves |
861.26 | Deflection of acoustic waves |
861.27 | Transit time of acoustic waves |
861.32 | By measuring swirl rate imparted by static means |
861.351 | Mass flow by imparting angular or transverse momentum to the fluid |
861.352 | Rotated resiliently coupled elements |
861.353 | Reaction turbine or vane |
861.354 | Coriolis or gyroscopic |
861.39 | Using an applied fluid jet |
861.41 | By counting drops, bubbles, or particles |
195 | System |
198 | Combined |
199 | With pressure regulator or demand limit |
200 | With gas and liquid separator |
201 | With connection or box |
202 | Proportional |
204.11 | Thermal type |
204.12 | With conduit extending between heat sinks |
204.13 | With auxiliary fluid contacting or in heat exchange relation with flow path (e.g., thermodilution) |
204.14 | Including digital or pulse measuring circuitry |
204.15 | Including detail of feedback or rebalancing circuitry |
204.17 | With distinct heating circuitry for a self-heated sensor |
204.18 | Including response characteristic or condition compensation |
204.21 | With fluid flow deflector or restrictor (e.g., baffle, constriction) |
204.22 | With sensor housing |
204.23 | Having particular electrical heating, cooling, or thermal sensing element |
861.42 | Using differential pressure |
861.43 | With time integration |
861.47 | Pressure applied to movable member (e.g., a diaphragm) |
861.49 | Pressure applied to liquid column or reservoir |
861.52 | With restriction |
861.53 | Automatically variable restriction |
861.54 | Slotted piston or cylinder |
861.55 | Cone and ball or disk |
861.56 | With structure of coupling to indicator |
861.57 | With structure of float, float tube, or float guide |
861.58 | Orifice and tapered plug |
861.59 | Including recirculation pump |
861.61 | Orifice or flow nozzle |
861.63 | Venturi |
861.65 | Pitot |
861.69 | Centrifugal |
215 | Weir type |
Tank type |
227 | Area-velocity integrating |
861.71 | By measuring thrust or drag forces |
861.77 | Using rotating member with particular electrical output or circuit |
861.79 | Using turbine |
861.81 | With response modification |
861.85 | Anemometers |
861.86 | With fluid directed radially outward |
861.87 | With flow direction retained in a plane perpendicular to turbine axis |
861.89 | Axial supply and delivery |
232 | Expansible chamber |
233 | With variable indicator drive |
234 | Wet type (e.g., liquid seal) |
239 | Reciprocating piston or cylinder |
240 | Transversely reciprocating piston and cylinder |
241 | Oscillating cylinder |
242 | Valveless |
243 | Duplex |
247 | Radial cylinder |
248 | Valved piston |
249 | With fluid actuated valve |
250 | With piston or rod actuated valve gear |
252 | Oscillating piston |
253 | Rotary piston or cylinder |
254 | With compensating bypass |
255 | With orbital movement |
259 | With sliding vane |
260 | With swinging vane |
261 | With interengaging pistons |
262 | Diaphragm or collapsible wall |
272R | Element |
290R | LIQUID LEVEL OR DEPTH GAUGE |
291 | With other measuring device |
293 | With illumination |
294 | With funnel or hose nozzle |
295 | Thermal type |
296 | Weighing type |
297 | Test cock type |
298 | Exploring tube |
299 | Hydrostatic pressure type |
300 | Bathometer type |
301 | With electrically controlled indicator |
302 | With fluid displacement or replenishment |
304R | Immersible electrode type |
305 | Float |
306 | Combined |
309 | Buoyancy type |
310 | Total registering |
311 | Multiple floats |
312 | Recording |
313 | With electrically controlled indicator |
314 | With position sensing |
315 | With float lock |
316 | With fluid transmission |
317 | Pivoted float arm |
319 | Vertically reciprocable |
322.5 | Float structure |
323 | Sight glass |
324 | With cleaner |
325 | With guard or casing |
327 | Reflector or magnifier |
328 | Boiler type |
334 | Transparent closure plate type |
290B | Ullage volume |
290V | Vibratory type |
379.01 | MUSCULAR FORCE (E.G., STRENGTH TESTING, EXERCISING OR TRAINING EFFORT, ETC.) |
379.02 | Jaw or hand (e.g., gripping, pinching, or biting) |
379.04 | Impact |
379.06 | Including a rotary element with a braking means (e.g., friction brake) |
379.08 | Using a resilient force-resister |
379.09 | Using hydraulic or pneumatic force-resister |
382R | GRAVITATIONAL DETERMINATION |
488 | SPEED, VELOCITY, OR ACCELERATION |
489 | Recording or registering interrelated factors |
490 | With distance registering means |
491 | With means for retaining reading |
493 | Structural installation or mounting means |
495 | Indicating diverse conditions |
496 | Vibration control or antistick means for reading structure |
497 | Temperature compensator |
498 | Adjusting means for reading structure |
499 | Illuminated reading device |
500 | Liquid surface is or moves reading means |
502 | Externally connected pressure gauge gives reading |
503 | Means integrating time and acceleration |
504.01 | Angular rate using wave or beam motion (e.g., Sagnac type) |
504.02 | Angular rate using gyroscopic or Coriolis effect |
504.03 | Multisensor for both angular rate and linear acceleration |
504.05 | Fluid or fluent inertial mass (e.g., electrons, ions, plasma) |
504.08 | Rotary gyroscope |
504.12 | Vibratory mass |
504.17 | Angular rate using a fluid vortex rate sensor |
504.18 | With rotary gyroscope |
506 | Means integrating intermittent speed source impulses |
507 | Comparison to a fixed standard, master or reference speed device |
508 | With governor drive failure responsive means |
509 | With response to a nonspeed condition |
510 | Response to multiple sensing means or motion conditions |
513 | With manual control |
514.01 | Acceleration determination utilizing inertial element |
514.02 | Angular acceleration |
514.05 | Fluid or fluent material |
514.06 | Fluid or fluent material support of an inertial element |
514.09 | Fluid or fluent inertial mass |
514.11 | Detection by fluid pressure |
514.12 | Fluid or fluent material dampening of an inertial element |
514.14 | Specific type of dampener (e.g., eddy current dampener) |
514.15 | Spinning or vibrating accelerometer |
514.16 | Specific type of electric sensor or specific type of magnetic sensor |
514.17 | Rebalance |
514.18 | Electrostatic restoring means |
514.19 | Radiant energy sensor (e.g., optical, charged, or radioactive particle) |
514.21 | Pendulum or beam |
514.24 | Including an elastic support for an inertial element (e.g., spring) |
514.25 | Charged particle or radioactive particle sensor |
514.26 | Optical sensor |
514.28 | Surface acoustical wave |
514.29 | Having a vibrating element |
514.31 | Inductive or magnetic sensor (e.g., Hall effect sensor) |
514.32 | Capacitive sensor |
514.33 | Resistive sensor |
514.34 | Piezoelectric sensor |
514.35 | Electric |
514.36 | Pendulum or beam |
514.38 | Including an elastic support for an inertial element (e.g., spring) |
514.39 | Magnetic speed measuring or mechanical speed measuring with ancillary magnetic means or with ancillary electrical means |
521 | Fluid |
522 | Dampening means |
523 | Expansible chamber devices |
524 | Fluid coupling or torque convertor type |
525 | Brake (e.g., vanes in air) |
526 | With dampening or shock-absorbing means |
527 | With input means |
530 | With output transmitting mechanism |
535 | Centrifugal weight type |
536 | Weight lever arm or pivot automatically variable during operation |
537 | Bias automatically variable during operation |
539 | Limit stop for weight |
540 | With adjusting means |
541 | Diverse |
542 | Biasing weight |
543 | Lever or gear adjustor |
544 | Adjusting screw means and bias spring concentric to centrifugal axis |
545 | Spring and adjustor connect paired weights |
546 | Leaf spring biasing means |
547 | Toggle joint mounted |
548 | Radially projecting striker type |
549 | Rigid mass crossing axis at an acute angle |
550 | Weighted bell crank lever type |
551 | Surface and follower (e.g., cam or weight as wedge) |
384 | BAROMETER (E.G., ALTIMETER) |
700 | FLUID PRESSURE GAUGE |
701 | Null balance type |
702 | Vibration type |
705 | Photoelectric |
706 | With protective separator |
707 | With fluid pulsation dampener |
708 | With pressure and/or temperature compensation |
709 | With excess or maximum registering |
710 | With steam trap |
711 | With variable drive |
712 | With recorder |
713 | With float |
714 | Combined |
715 | Diaphragm |
716 | Multiple and/or differential |
723 | With electrical readout |
729.1 | Bellows |
729.2 | Capsule |
730 | Expansible conduit |
731 | Sack |
732 | Bourdon |
733 | With electrical readout |
736 | Multiple and/or differential |
737 | Intermediately supported |
738 | Safety pressure release casing |
739 | With mechanism dampening |
740 | With zeroizing adjustment |
741 | Bourdon tube and mounting |
744 | Piston |
747 | U-tube liquid column |
751 | Balance |
752 | McLeod type |
753 | Electrical |
756 | Mounting and connection |
863 | SAMPLER, SAMPLE HANDLING, ETC. |
863.01 | Automatic control |
863.11 | With heating or cooling |
863.21 | With constituent separation |
863.31 | Plural parallel systems |
863.41 | Flow divider, deflector, or interceptor |
863.42 | Attached to mouth of dumpable receptacle |
863.43 | Having precapture flow guide or homogenizer |
863.51 | Having an upstream-facing-opening-type capture element |
863.52 | With receptacle |
863.54 | Mounted for reciprocation |
863.55 | Oscillating |
863.56 | Rotary |
863.57 | With blocking means |
863.58 | Pitot tube type |
863.61 | Branched conduit |
863.71 | Conduit or passageway section capture chamber |
863.81 | Withdrawing through conduit or receptacle wall |
863.82 | Capture element movable to plural loci |
863.83 | With metering means or pump |
863.85 | Lock or seal for sampler insertion or removal |
863.86 | Valve or restriction |
863.91 | Conveyor coacting |
864 | Capture device |
864.01 | Pipette or cannula |
864.02 | Self-filling of self-limiting |
864.03 | With user mouth protection |
864.11 | With suction applying and liquid discharge means |
864.12 | With separate diluent supply |
864.13 | Piston within pipette |
864.14 | With particular connection or release means |
864.15 | With valve for connection to external pressure source |
864.16 | Piston and cylinder |
864.21 | With sample supply to analyzer |
864.22 | With pipette contacting second fluid supply |
864.23 | Pipette fixed; source movable |
864.24 | Pipette longitudinally movable |
864.31 | With capture device transporter |
864.33 | Capture by fluid current |
864.34 | Sample meter or pump |
864.41 | Cutter, tearer, or scraper |
864.51 | Receptacle type |
864.52 | Preevacuated |
864.53 | Mold |
864.54 | With suction applier |
864.55 | With diminutive fill passageway |
864.58 | With sample conditioner |
864.59 | With holder or connector |
864.61 | Fluid displacement |
864.62 | Expansible chamber |
864.63 | With valve or closure |
864.71 | Material for particulate adhesion |
864.72 | Capillary attraction retention |
864.73 | Conduit |
864.81 | Analyzer supplier |
864.82 | Having sample capsule support |
864.83 | Having sample confining chamber |
864.85 | Connector for separable holder |
864.91 | Sample holder |
426 | MEASURING VESSEL |
430 | INSTRUMENT MECHANISM DAMPENING |
431 | INSTRUMENT CASING |
865 | MASS |
865.1 | HUMAN STRESS LIMIT (E.G., DECOMPRESSION GAUGE FOR DIVERS) |
865.2 | HYDRAULIC ALTIMETER |
865.3 | TESTING BY IMPARTING MOTION |
865.4 | ANALYZING BODILY MOVEMENT (E.G., SKILLS OR KINETICS OF HANDWRITING) |
865.5 | PARTICLE SIZE |
865.6 | SIMULATED ENVIRONMENT (E.G., TEST CHAMBERS) |
865.7 | TOUCH OR TASTE |
865.8 | INSPECTING |
865.9 | TESTING OF APPARATUS |
866 | TESTING OF MATERIAL |
866.1 | INSTRUMENT MECHANISM OR TRANSMISSION |
866.3 | DISPLAY OR DISPLAY DEVICE DETAILS |
866.4 | SPECIMEN MODEL OR ANALOG |
866.5 | PROBE OR PROBE MOUNTING |
432.1 | MISCELLANEOUS |
CROSS-REFERENCE ART COLLECTIONS | ||
900 | AUTOMATIC GAIN CONTROL |
901 | DIGITAL READOUT |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
FOR100 | BORE HOLE AND DRILLING STUDY (73/151) |
FOR101 | Drill depth-rate (73/151.5) |
FOR102 | Formation logging (73/152) |
FOR105 | Fluid intrusion, theft of flow study (73/155) |
FOR106 | POWER PLANT OR UNIT EFFICIENCY (73/112) |
FOR110 | MOTOR AND ENGINE TESTING (73/116) |
FOR111 | With vehicle supporting roller or belt (73/117) |
FOR112 | Utilizing a test chamber or tank to simulate operating conditions (73/117.1) |
FOR113 | Disparate tests under operating conditions (73/117.2) |
FOR115 | Thrust measurement (e.g., jet engine) (73/117.4) |
FOR116 | Testing auxiliary unit (73/118.1) |
FOR118 | Motor part (73/119) |
DIGESTS | ||
DIG1 | VIBRATION |
DIG2 | MAGNETOSTRICTIVE |
DIG3 | HALL EFFECT |
DIG4 | PIEZOELECTRIC |
DIG5 | LIQUID LEVELS WITH MAGNETIC TRANSMISSION |
DIG8 | FLUID CIRCUITS |
DIG9 | MOLTEN METAL SAMPLERS |
DIG10 | INSTRUMENT MECHANISMS WITH ACCELERATION COMPENSATION |
DIG11 | PHOTOELECTRIC CELL |
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