Manual of U.S. Patent Classification
as of June 30, 2000

Class
073
MEASURING AND TESTING

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

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Subclass		Title
ClassTitle		===> MEASURING AND TESTING
1.01		INSTRUMENT PROVING OR CALIBRATING
1.02		. Gas or liquid analyzer
1.03		. . Reference standard
1.04		. . . Permeable outlet or flawed element
1.05		. . . Piston, sprayer, nozzle, or orifice
1.06		. . Gas
1.07		. . . Span or zero
1.08		. Dynamometer
1.09		. . Torque
1.11		. . . Electrical
1.12		. . . Wrench
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
1.21		. . . With plural pistons
1.22		. . . With magnetic or optical sensor
1.23		. . . With position sensing switch
1.24		. . Tracer
1.25		. . Orifice or restriction
1.26		. . . Nozzle or venturi
1.27		. . Turbine, geared meter, pulse activated, or counter
1.28		. . . Turbine or geared meter
1.29		. . Anemometer or pitot tube
1.31		. . With liquid level monitor or timer
1.32		. . . Prover bell
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
1.38		. . Acceleration utilizing an inertial element
1.39		. . . Involving pendulum or impact
1.41		. . Optical or magnetic sensing
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
1.46		. . . . With sound sensor
1.47		. . . . Resilient element
1.48		. . . Using sound sensor or piezoelectric vibration sensor
1.49		. . . . Plural watches or plural sensors
1.51		. . . . Resilient element
1.52		. . . Plural watches
1.53		. . . With resilient element
1.54		. . . . Coil spring
1.55		. . . . . Plural coil springs
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
1.61		. . . Span
1.62		. . . Zero
1.63		. . . With reference source or attachment therefor
1.64		. . . . Varying
1.65		. . Dead weight type
1.66		. . Varying
1.67		. . . Using or containing liquid
1.68		. . With piston and cylinder
1.69		. . Using or containing liquid
1.71		. . Pressure activated device
1.72		. . . Valve
1.73		. Liquid level or volume measuring apparatus
1.74		. . Volumetric dispenser (e.g., pipette)
1.75		. Angle, direction, or inclination
1.76		. . Compass
1.77		. . Gyroscope
1.78		. . Aircraft, inertial navigation, or attitude
1.79		. Displacement, motion, distance, or position
1.81		. . Length, width, or height
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
8		. Wheel tread, tire, track, or roadway
9		FRICTIONAL RESISTANCE, COEFFICIENT OR CHARACTERISTICS
10		. Lubricant testing
11.01		TESTING IMPACT DELIVERING DEVICE (E.G., A HAMMER)
11.02		. Shot peener
11.03		. Pile driving 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
11.08		. . By applying reciprocating or oscillating motion
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)
12.05		. . Particle or projectile specimen
12.06		. . Dropped
12.07		. . By hydraulic or pneumatic forces
12.08		. Specimen directly subjected to a fluid pressure pulse or wave
12.09		. Specimen impactor detail
12.11		. . Particle or projectile
12.12		. . Reciprocating or oscillating
12.13		. . Dropped
12.14		. . . Pivoted
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
19.06		. . Of a beverage
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
19.11		. . Lubricant
19.12		. Particular separator
23.2		GAS ANALYSIS
23.21		. With compensation detail (for error or drift correction, etc.)
23.22		. . For gas chromatography
23.23		. . . Baseline drift correction circuitry
23.24		. . . Rate of flow
23.25		. . . Temperature
23.26		. . . . Gradient
23.27		. . . Pressure
23.28		. . For density or specific gravity
23.29		. . . Pressure
23.3		. Breath analysis
23.31		. Gas of combustion
23.32		. . Air-fuel ratio
23.33		. . . Solid content
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
28.02		. . Particle charging
28.03		. . Pressure
28.04		. . Separator detail
28.05		. . . Impactor
28.06		. . . . Fractionalizing
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
335.03		. . . . Impedance
335.04		. . . . . Capacitance
335.05		. . . . . Resistance or conductivity
335.06		. . . Wet and dry responsive elements
335.07		. . . . With direct readout or calculator detail
335.08		. . . . Wet bulb detail
335.09		. . . . . Relative air motion creating means (e.g., sling psychrometer)
335.11		. . . Expanding-sorption element
335.12		. . . . Coiled or twisted
335.13		. . . . Arcuate or elongated
335.14		. . . . Tensioned
29.03		. . Pressure
29.04		. . With visual indication
29.05		. . Detector detail
30.01		. Density or specific gravity
30.02		. . By pressure measurement
30.03		. . By rate of flow
30.04		. . Detector detail
31.01		. Ambient air
31.02		. . Impurity
31.03		. Impurity
31.04		. Pressure
31.05		. Detector detail
31.06		. . Semiconductor
31.07		. Particular separator
32R		SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID
433		. With weighing feature
434		. . Continuous test fluid supply
435		. . Plural supports for specimen
436		. . . Vertically, commonly suspended
437		. . Immersion
438		. Hydrostatic pressure type
439		. . Bubble tube
440		. Multiple floats of graduated density
441		. Portable hand manipulable syringe type
442		. . With thermometer
443		. . . With calculator
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
449		. . . With carried thermometer or thermal compensator
450		. . . Specimen carrying
451		. Float operated indicator
452		. . Continuous test fluid supply
453		. . Electrical indication
454		. . Pivoted float
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
35.04		. . Including calculation means
35.05		. . Automatic gain control or feedback control
35.06		. Combustion signal compared to a fixed reference signal or utilizing a threshold value
35.07		. Specific type of detonation sensor
35.08		. . Ionization
35.09		. . Vibration
35.11		. . . Piezoelectric
35.12		. . Pressure
35.13		. . . Piezoelectric
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
37.6		. . Moving specimen
37.7		. . . Sheet or filament
37.8		. . Plural tests
37.9		. . Internal gauging
38		. Porosity or permeability
39		. Fluid pressure brake system or unit
40		. Leakage
40.5R		. . Fluid handling conduit in situ
40.5A		. . . Using acoustic detectors
40.7		. . By probe gas, vapor, or powder
41		. . Conveyor feed
41.2		. . . With immersion
41.3		. . . . Defective article discard
41.4		. . . . . Automatic
45		. . . With defective article discard
45.1		. . . . Automatic
45.2		. . . . . Electrically controlled
45.3		. . . . . Vacuum support failure
45.4		. . . . . Sealed receptacle
45.5		. . With immersion
45.6		. . . Pneumatic tire
45.7		. . . . Mesh envelope
45.8		. . . Radiator
46		. . Between fitted parts (e.g., joints)
47		. . . Piston, piston ring, or engine valve
48		. . . Tire valve
49		. . Pneumatic tire
49.1		. . Pipe
49.2		. . Receptacle
49.3		. . . Sealed
49.4		. With ram pressure inducer
49.5		. Pipe
49.6		. . With power-operated closure or seal
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
53.06		. . By analyzing a characteristic of a measuring surface
53.07		. . By solid content
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
54.06		. . . . By pressure measuring
54.07		. . . By time interval of travel or flow rate measuring
54.08		. . . . Including a photocell
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)
54.26		. . . . . With detail of a drive means or a detecting means
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
54.33		. . . . . By measuring angular displacement
54.34		. . . . . By measuring a counterbalance or restoring 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)
61.45		. . . . By vibration
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
61.64		. . . By volume or flow rate
61.65		. . . Sedimentation rate
61.66		. . . . With means for accelerating solids (e.g., particles)
61.67		. . . . By pressure measurement
61.68		. . . . Including detail of fluid handling means, sampling, sample handling, or sample preparation
61.69		. . . . By optical measurement
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)
61.74		. . . . Thermal
61.75		. . . Vibration
61.76		. . By thermal measurement
61.77		. . . Vaporization (e.g., evaporation, distillation, etc.)
61.78		. . By pressure measurement
61.79		. . By vibration
64.41		. Gelling or coagulation
64.42		. . By vibration
64.43		. . By optical measurement
64.44		. Vapor-liquid ratio
64.45		. Vapor pressure
64.46		. . Differential pressure
64.47		. Osmotic pressure (e.g., diffusion characteristic)
64.48		. Surface tension
64.49		. . By force or torque
64.51		. . By pressure
64.52		. . Liquid droplet
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
65.06		. . Electric sensor
65.07		. Dynamic
65.08		. . Torsional oscillation
65.09		. Electric sensor
66		ROTOR UNBALANCE
455		. Propeller, impeller, or fluid coupling
456		. . Single blade balancing
457		. In situ
458		. . With counterbalancing means
459		. Combined static and dynamic
460		. Dynamic (spinning)
461		. . Mass centering
462		. . With electrical sensor and indicator
463		. . . Wattmeter
464		. . . Rotatable switch
465		. . . Oscilloscope (cathode ray)
466		. . . Stroboscopically illuminated
467		. . . . Indicator
468		. . With counterbalancing means
469		. . . By radially and circumferentially adjustable weights
470		. . . By circumferentially adjustable weights
471		. . With vibratable mount feature
472		. . . Free floating rotor
473		. . . . Horizontal axis
474		. . . One rotor end universally tiltable
475		. . . Horizontal rotational axis
476		. . . . Horizontal plane of vibration
477		. . . . . Both ends free
478		. . . . . . With selective endlock
479		. . . . Horizontal fulcrum
480		. Gravitational moment turns rotor about spin axis
481		. . Ways
482		. Gravitational moment tilts rotor about axis transverse to spin axis
483		. . Universally tiltable
484		. . . With tapered rotor centering means
485		. . . With expansible or contractible centering means
486		. . . With suspension means
487		. Tool and adjunct
570		VIBRATION
570.5		. Acoustic levitation
571		. Test chamber
572		. Loose object detection
573		. Hardness or compliance
574		. Mechanical impedance
575		. . Of an elastomer
576		. . Device having an electromagnetic drive
577		. Fatigue study
578		. . Electromagnetic drive
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
598		. . . . For flaw or discontinuity detection
599		. . . Attenuation measurement
600		. . . . For flaw or discontinuity detection
601		. . . Having plural, diverse forms of radiant energy
602		. . . With signal analyzing or mathematical processing
603		. . . Acoustic holography
604		. . . . Having means substituted for reference signal
605		. . . . Liquid or deformable surface holography
606		. . . Imaging of discontinuity with stationary sonic transmitter
607		. . . . By scan of a sonic receiver
608		. . . . By Bragg diffraction
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
619		. . . . Programmed scan
620		. . . . By reflected wave
621		. . . . . Having compound scan
622		. . . . . Of tubing, vessel, or cylindrical object
623		. . . . . . Scan from within object
624		. . . . . Having separate sonic transmitter and receiver
625		. . . . . Having plural sonic type transmitter or receiver transducers
626		. . . . . . Switched
627		. . . By reflected wave
628		. . . . Having plural sonic type transmitters or receivers tranducers
629		. . . . Having unitary sonic type transmitter-receiver transducer
630		. . . . . Establishing resonance in a test body
631		. . . . . Having automatic gain control
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
646		. . . Amplitude, power, or intensity
647		. . . . Current generating or modifying
648		. . . . . Frequency sensitive
649		. Sensing apparatus
650		. . Torsional
651		. . Vibratable reed
652		. . With inertia element
653		. . . With light beam indicator
654		. . . With electrically controlled indicator
655		. . With light beam indicator
656		. . . By optical holography
657		. . . By frequency or phase shift
658		. . With electrically controlled indicator
659		. . . Spectrum analysis
660		. . . Rotating machinery or device
661		. . . Having a probe
662		. Vibrator
663		. . Table, platform, or other support
664		. . . Circuitry
665		. . . Having fluid bearing or fluid pressure actuated
666		. . . Having spring support
667		. . . Eccentrically vibrated
668		. . . Electromagnetically vibrated
669		. . Vehicle shaker
670		. . . Treadmill
671		. . Having a fluid jet
672		. . Having a rotatable imbalanced mass
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
79		. Scleroscope or rebound
81		. By penetrator or indentor
82		. . Impact type
83		. . With successive minor and major load
84		. . Soil bearing capacity
85		. . Penetrator element
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)
766		. . . Temperature
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
775		. . . Bonded to specimen
776		. . . . Sensor comprises coating
777		. . . Semiconductor
778		. . . Vibratory element
779		. . . Magnetic or inductive
780		. . . Capacitive
781		. Specified load or strain transmission device from specimen to electrical detector
782		. . Strain multiplier
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
790		. . . Compression
791		. . . Graphical output
792		. . . . Moving chart
793		. . . . . Drum
794		. . Plural diverse stress-strain tests or composite loads
795		. . . Strain
796		. . . Tension-compression
797		. . . . Alternating
798		. . . . Hydraulic or pneumatic actuation
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
829		. . . . By roller
830		. . . . To failure
831		. . . Having specified clamp
832		. . . . Interior to specimen
833		. . . . Jaws
834		. . . To failure
835		. . . . Tear
836		. . . Pendulum dynamometer
837		. . . Hydraulic or pneumatic actuation
838		. . Rupture or burst strength of sheet material by transverse loading
839		. . . Including cutting or piercing element
840		. . . Hydraulic or pneumatic actuation
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
848		. . . To failure
849		. . Bending, flexing, or folding
850		. . . Weld testing
851		. . . To failure or fracture
852		. . . Loading means intermediate stationary end holders or supports
853		. . . Having opposite ends of specimen clamped
854		. . . By angular displacement of opposite ends of specimen
855		. Support, holder, or housing for unspecified type electrical sensing element
856		. Specimen clamp, holder, or support
857		. . With hydraulic or pneumatic actuation of grip
858		. . Winding drum or roller type
859		. . With wedging or camming elements contacting specimen
860		. . Opposed pair
104		SURFACE AND CUTTING EDGE TESTING
105		. Roughness
112		POWER PLANT OR UNIT EFFICIENCY
113		. Automobile fuel consumption
114		. . Miles per gallon
115		. Pressure derivative
116		MOTOR AND ENGINE TESTING
117		. With vehicle wheel supporting roller or belt
117.1		. Utilizing a test chamber or tank to simulate operating conditions
117.2		. Disparate tests under operating conditions
117.3		. . With continuous operation
117.4		. Thrust measurement (e.g., jet engine)
118.1		. Testing auxiliary unit
118.2		. . Intake air flow
119R		. Motor part
120		. . Piston ring
119A		. . Fuel injection tests
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
127		. . . Single wheel portable unit
128		. Road test attachment or adjunct
129		. Vehicle installation
130		. Single wheel rotating and resistance measuring means
131		. . Torque measuring lever
132		. Brake depressor with measuring means
862		DYNAMOMETERS
862.01		. For testing force-biased connections
862.02		. . Ski bindings
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
862.043		. . . Three dimensional (e.g., x, y, z axes)
862.044		. . . . Using a resistance strain gage
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
862.13		. . . . Automatic load control
862.14		. . . Having fluid brake means
862.15		. . . . Air brakes
862.16		. . . . Automatic load control
862.17		. . . Having magnetic or electromagnetic brake means
862.18		. . . . Automatic load control
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)
862.24		. . . . . Rate of change
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
862.326		. . . . . Phase angle detection
862.327		. . . . . . Vernier type
862.328		. . . . . . By plural toothed or notched sensing means
862.329		. . . . . . . Interlaced teeth
862.331		. . . . . Inductance or reluctance sensor
862.332		. . . . . . Variable air gap in a magnetic core
862.333		. . . . . . Detecting magnetostrictive or magnetoelastic property
862.334		. . . . . . . Grooved or slotted torsion shaft
862.335		. . . . . . . Magnetic sleeve or layer
862.336		. . . . . . . . Particular constituent
862.337		. . . . . Capacitance sensor
862.338		. . . . . Resistance strain gage
862.339		. . . . . . With noncontact coupling (e.g., rotary transformer)
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
862.43		. . . . Racket stringing
862.44		. . . . With winding or reeling means
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
862.472		. . . . . With pivoted deflecting member between spaced guides or supports
862.473		. . . . . Electrical sensor
862.474		. . . . . . Resistance strain gage
862.392		. . . By measuring axial force or stretch
862.393		. . . . Pulling force on an anchoring device
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
862.582		. . . Using a load responsive valve or restrictor
862.583		. . . . Pneumatic
862.584		. . . Using a piston
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
862.623		. . . . Temperature
862.624		. . . Using a light sensor
862.625		. . . Using a specific type of electrical sensor
862.626		. . . . Inductance or capacitance sensor
862.627		. . . . Resistance strain gage
862.628		. . . . . Including a specific type of electrical circuit
862.629		. . . . . Specific type of elastic member
862.631		. . . . . . Axle or pivot pin
862.632		. . . . . . Flexible element (e.g., beam, plate, or web)
862.633		. . . . . . . Parallel
862.634		. . . . . . . Cantilever
862.635		. . . . . . Closed loop (e.g., ring or tube)
862.636		. . . Specific type of elastic member
862.637		. . . . Flexible element (e.g., beam, plate, or web)
862.638		. . . . . Parallel
862.639		. . . . . Cantilever
862.641		. . . . Helical or spiral
862.642		. . . . Closed loop (e.g., ring or tube)
862.68		. . By measuring electrical properties
862.69		. . By measuring magnetic properties
862.382		. . With detail of overload protection
146		TIRE, TREAD OR ROADWAY
146.2		. Tire inflation testing installation
146.3		. . By direct fluid pressure reading
146.4		. . . Telemetric (e.g., indicator on cowl)
146.5		. . . . Electric
146.8		. . . Tire stem attachments
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
150A		. Bond strength
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
152.04		. . . By drill mud analysis
152.05		. . Density, porosity, or permeability
152.06		. . . Including oil, gas, or water saturation
152.07		. . . By a core sample analysis
152.08		. . Oil, gas, or water saturation
152.09		. . . By a core sample analysis
152.11		. . By a core sample analysis
152.12		. . Thermal
152.13		. . . With heating or cooling
152.14		. . With radioactivity measuring
152.15		. . . With vibration 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
152.21		. . . Rate of fluid flow
152.22		. . . Pressure
152.23		. . With sampling
152.24		. . . From formation wall
152.25		. . . . With a filter
152.26		. . . . With sealing detail
152.27		. . . Pressure
152.28		. . . Downhole
152.29		. . Rate of fluid flow
152.31		. . . Plural diverse measuring
152.32		. . . Vibration
152.33		. . . Thermal
152.34		. . . Rotary
152.35		. . . . Magnetic
152.36		. . . Packer or deflector detail
152.37		. . Steady state fluid flow interruption
152.38		. . . Drawdown or shutin test
152.39		. . Fluid injection into formation
152.41		. . . Determining permeability or saturation
152.42		. . Determining relative proportion of fluid constituent
152.43		. During drilling
152.44		. . Drill depth rate
152.45		. . . Electronic processing or electronic recording
152.46		. . Downhole measurement
152.47		. . . Vibration
152.48		. . . Force
152.49		. . Force
152.51		. Pressure measurement
152.52		. . Plural diverse measurements
152.53		. . With recorder
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
152.62		. . With recorder
156		STATISTICAL RECORD VERIFYING
157		RECORD STRIP SPROCKET HOLE TESTING
158		HOISTING CABLE AND ROPE
159		SHEET, WOVEN FABRIC OR FIBER
160		. Filament
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
182		. . Pressure differential type
183		. . . With integrating means
184		. . Drag type
185		. . . Rotary
186		. . Vane type
187		. . Rotary
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
170.03		. . Sailboat (e.g., sailing aid)
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
170.08		. . . Electric sensor
170.09		. . Electric sensor
170.11		. With velocity determination
170.12		. . Thermal
170.13		. . Acoustic
170.14		. . Fluid pressure differential
170.15		. . Thrust or drag force
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)
170.22		. . . Using a float
170.23		. . . Weight actuated (e.g., tipping bucket)
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
861.02		. . Electrical
861.03		. . . Digital
861.04		. Of selected fluid mixture component
861.05		. By measuring transit time of tracer or tag
861.06		. . With autocorrelation or cross-correlation detection
861.95		. . Thermal tracer or tag
861.07		. By measuring tracer concentration
861.08		. By measuring electrical or magnetic properties
861.09		. . Ionization type
861.11		. . Electromagnetic induction (e.g., Faraday type)
861.12		. . . With detecting electrodes
861.13		. . . . Including permanent magnet or D.C. field
861.14		. . . . For dielectric fluids
861.15		. . . . Plural pairs of detecting electrodes
861.16		. . . . Including electrically interconnected or synchronized input and output circuit
861.17		. . . . . Selective or periodic sampling
861.18		. By measuring vibrations or acoustic energy
861.19		. . Produced by fluidic oscillator
861.21		. . Caused by fluid interaction with obstacle
861.22		. . . Vortex shedders
861.23		. . . . Acoustic
861.24		. . . . Movable sensor responsive to vortices
861.25		. . Reflection or scattering of acoustic waves
861.26		. . Deflection of acoustic waves
861.27		. . Transit time of acoustic waves
861.28		. . . Transmitted along single path
861.29		. . . . In both directions simultaneously
861.31		. . . Transmitted along parallel paths
861.32		. By measuring swirl rate imparted by static means
861.33		. . With turbine in a swirl chamber
861.34		. . Precess type
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
861.355		. . . Vibrated conduit
861.356		. . . . Signal processing or analysis details
861.357		. . . . Drive and sensor element located on straight conduit portion
861.39		. Using an applied fluid jet
861.41		. By counting drops, bubbles, or particles
195		. System
196		. . Flow comparing
197		. . Compound meter
198		. Combined
199		. . With pressure regulator or demand limit
200		. . With gas and liquid separator
201		. . With connection or box
202		. Proportional
202.5		. . Thermal sensing of flow
203		. . With valved proportioning means
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
204.16		. . . By control of a separate heating or cooling element
204.17		. . With distinct heating circuitry for a self-heated sensor
204.18		. . Including response characteristic or condition compensation
204.19		. . . For temperature
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
204.24		. . . Thermoelectric junction
204.25		. . . Resistive element
204.26		. . . . With substrate carrier (e.g., thin film)
204.27		. . . . Wire type (e.g., hot wire)
861.42		. Using differential pressure
861.43		. . With time integration
861.44		. . . By electrical means
861.45		. . . By mechanical means
861.46		. . . . Including pressure applied to liquid column or reservoir
861.47		. . Pressure applied to movable member (e.g., a diaphragm)
861.48		. . . With linearization (e.g., square root extraction)
861.49		. . Pressure applied to liquid column or reservoir
861.51		. . . With linearization
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
861.62		. . . . Adjustable
861.63		. . . Venturi
861.64		. . . . Inlet or outlet structure
861.65		. . Pitot
861.66		. . . Sensing at plural transverse locations
861.67		. . . Adjustable
861.68		. . . With heating element
861.69		. . Centrifugal
215		. Weir type
216		. . Submerged orifice or discharge nozzle
		. Tank type
217		. . Rotary tank or bucket
218		. . . With power drive
219		. . Plural measuring chamber
220		. . . With fluid-pressure operated valve
221		. . . With float operated valve
222		. . . With siphon discharge
223		. . Single measuring chamber
224		. . . With float operated valve
225		. . . . With trip gear
226		. . . With siphon discharge
227		. Area-velocity integrating
861.71		. By measuring thrust or drag forces
861.72		. . By changing fluid direction
861.73		. . Impact of particulate material
861.74		. . On a vane
861.75		. . . With rotation about a fixed axis
861.76		. . . . Spring biased
861.77		. Using rotating member with particular electrical output or circuit
861.78		. . With pick-up coil
861.79		. Using turbine
861.81		. . With response modification
861.82		. . . Pressure responsive valve or restriction
861.83		. . . Axial supply and delivery
861.84		. . . . Differentially responsive turbines
861.85		. . Anemometers
861.86		. . With fluid directed radially outward
861.87		. . With flow direction retained in a plane perpendicular to turbine axis
861.88		. . . Mechanical coupling to indicator
861.89		. . Axial supply and delivery
861.91		. . . With structure to reduce friction or wear
861.92		. . . With structure of bearing or turbine support structure
861.93		. . . With mechanical coupling to indicator
861.94		. . . With magnetic coupling drive assembly
232		. Expansible chamber
233		. . With variable indicator drive
234		. . Wet type (e.g., liquid seal)
235		. . . Rotary drum
236		. . . Oscillating bell or drum
237		. . . Reciprocating bell
238		. . . Nutating bell
239		. . Reciprocating piston or cylinder
240		. . . Transversely reciprocating piston and cylinder
241		. . . Oscillating cylinder
242		. . . Valveless
243		. . . Duplex
244		. . . . Wobble plate or cam
245		. . . . With transverse shaft
246		. . . . . With single distributing valve
247		. . . Radial cylinder
248		. . . Valved piston
249		. . . With fluid actuated valve
250		. . . With piston or rod actuated valve gear
251		. . . . With trip gear
252		. . Oscillating piston
253		. . Rotary piston or cylinder
254		. . . With compensating bypass
255		. . . With orbital movement
256		. . . . Plural stationary abutment
257		. . . . Single stationary abutment
258		. . . . . Nutating piston
259		. . . With sliding vane
260		. . . With swinging vane
261		. . . With interengaging pistons
262		. . Diaphragm or collapsible wall
263		. . . Multiple diaphragm
264		. . . . Duplex
265		. . . . With rotary valve
266		. . . . . Crank operated
267		. . . . . . With flag rod
268		. . . . With oscillating or reciprocating valve
269		. . . Single diaphragm
270		. . . . With diaphragm actuated valve trip gear
271		. . . . With fluid actuated valve
272R		. Element
273		. . Casing
274		. . . Diaphragm meter type
275		. . Antireversing mechanism
276		. . . Check valve
277		. . "Frostproof" construction
278		. . Diaphragm mounting
279		. . Diaphragm
280		. . . With oiling structure
281		. . Tangent adjustment
272A		. . With remote register
290R		LIQUID LEVEL OR DEPTH GAUGE
291		. With other measuring device
292		. . Thermometer
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
303		. . . Suction type or vacuum tank action
304R		. Immersible electrode type
304C		. . Capacitative
305		. Float
306		. . Combined
307		. . . With warning signal or alarm
308		. . . . Electric
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
318		. . . With flexible cable transmission
319		. . Vertically reciprocable
320		. . . With spiral cam or guide
321		. . . With flexible cable transmission
322		. . . Indicator stem attached
322.5		. . Float structure
323		. Sight glass
324		. . With cleaner
325		. . With guard or casing
326		. . . Boiler type
327		. . Reflector or magnifier
328		. . Boiler type
329		. . . Duplex or multiple section
330		. . . Transparent closure plate type
331		. . . . Bull's eye type
332		. . . With valve
333		. . . . Safety feature
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)
379.03		. . Using a resilient force-resister
379.04		. Impact
379.05		. . Using a resilient force-resister
379.06		. Including a rotary element with a braking means (e.g., friction brake)
379.07		. . Pedal driven (e.g., cycle ergometer)
379.08		. Using a resilient force-resister
379.09		. Using hydraulic or pneumatic force-resister
382R		GRAVITATIONAL DETERMINATION
383		. Torsion balance
382G		. Gravitational variation
488		SPEED, VELOCITY, OR ACCELERATION
489		. Recording or registering interrelated factors
490		. With distance registering means
491		. With means for retaining reading
492		. . Maximum acceleration
493		. Structural installation or mounting means
494		. . Installed in rotary speed source
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
501		. . Surface of revolving liquid body
502		. Externally connected pressure gauge gives reading
503		. Means integrating time and acceleration
503.3		. . Gyroscope
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
504.04		. . . Vibratory mass
504.05		. . Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
504.06		. . . Fluid jet
504.07		. . . Rotary
504.08		. . Rotary gyroscope
504.09		. . . Gimbal support
504.11		. . . Flexible rotor or flexibly mounted rotor
504.12		. . Vibratory mass
504.13		. . . Hollow circular-shaped inertial element
504.14		. . . Elongated element with spaced supports
504.15		. . . Cantilever
504.16		. . . . Tuning fork
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
511		. . Response to both velocity and acceleration
512		. . . Centrifugal-type velocity sensor and separate inertial means
513		. With manual control
514.01		. Acceleration determination utilizing inertial element
514.02		. . Angular acceleration
514.03		. . . Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
514.04		. . . Inertial flywheel
514.05		. . Fluid or fluent material
514.06		. . . Fluid or fluent material support of an inertial element
514.07		. . . . Gas
514.08		. . . . Magnetic fluid
514.09		. . . Fluid or fluent inertial mass
514.11		. . . Detection by fluid pressure
514.12		. . . Fluid or fluent material dampening of an inertial element
514.13		. . . . Gas
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
514.22		. . . . . Including a bearing support
514.23		. . . . . Including a flexure support
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
514.27		. . . . Frequency or phase shift
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
514.37		. . . Including a pivot support
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
519.01		. . Eddy current drag means (e.g., drag cup)
520.01		. . . With a flux adjusting 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
528		. . Selective speed transmitter
529		. . Frictional (e.g., friction wheels)
530		. With output transmitting mechanism
531		. . With transmission adjustment means
532		. . Gear
533		. . . Rectilinear rack
534		. . Surface and follower
535		. Centrifugal weight type
536		. . Weight lever arm or pivot automatically variable during operation
537		. . Bias automatically variable during operation
538		. . . Snap action
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)
385		. Mercury
386		. Aneroid
387		. . Settable
700		FLUID PRESSURE GAUGE
701		. Null balance type
702		. Vibration type
703		. . Ultrasonic
704		. . Vibrating strip or wire
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
717		. . . With electrical readout
718		. . . . Capacitive
719		. . . . Resistive
720		. . . . . Strain gauge
721		. . . . . . Piezoresistive
722		. . . . Electromagnetic
723		. . With electrical readout
724		. . . Capacitive
725		. . . Resistive
726		. . . . Strain gauge
727		. . . . . Piezoresistive
728		. . . Electromagnetic
729.1		. . Bellows
729.2		. . Capsule
730		. . Expansible conduit
731		. . Sack
732		. Bourdon
733		. . With electrical readout
734		. . . Resistive
735		. . . Electromagnetic
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
742		. . . Helical Bourdon tube
743		. . . Spiral Bourdon tube
744		. Piston
745		. . With electrical readout
746		. . . Resistive
747		. U-tube liquid column
748		. . Sphygmomanometer
749		. . With electrical readout
750		. . . Resistive
751		. Balance
752		. McLeod type
753		. Electrical
754		. . Semiconductor
755		. . Pirani type
756		. Mounting and connection
863		SAMPLER, SAMPLE HANDLING, ETC.
863.01		. Automatic control
863.02		. . Quantity or rate of flow responsive
863.03		. . . Rate of sample flow continuously controlled
863.11		. With heating or cooling
863.12		. . And separation
863.21		. With constituent separation
863.22		. . Particle impact
863.23		. . Sieve, filter, or semipermeable membrane
863.24		. . . Cleaning
863.25		. . . Changing feature
863.31		. Plural parallel systems
863.32		. . Pipette
863.33		. . Plural capture, single receiver
863.41		. Flow divider, deflector, or interceptor
863.42		. . Attached to mouth of dumpable receptacle
863.43		. . Having precapture flow guide or homogenizer
863.44		. . . Oscillating or reciprocating
863.45		. . . Rotary
863.51		. . Having an upstream-facing-opening-type capture element
863.52		. . . With receptacle
863.53		. . . . Mounted for flow zone traverse
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
863.72		. . Single valve unit
863.73		. . . Capture chamber within valve unit
863.81		. Withdrawing through conduit or receptacle wall
863.82		. . Capture element movable to plural loci
863.83		. . With metering means or pump
863.84		. . . Expansible chamber
863.85		. . Lock or seal for sampler insertion or removal
863.86		. . Valve or restriction
863.91		. Conveyor coacting
863.92		. . Integral with conveyor structure
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
864.17		. . . . . Plural
864.18		. . . . . Plural or adjustable limit stops
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
864.25		. . . . And transversely movable
864.31		. . With capture device transporter
864.32