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 Class   73MEASURING AND TESTING
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  1.01           INSTRUMENT PROVING OR CALIBRATING
  1.02           . (1 indent ) Gas or liquid analyzer
  1.03           .. (2 indent ) Reference standard
  1.04           ... (3 indent ) Permeable outlet or flawed element
  1.05           ... (3 indent ) Piston, sprayer, nozzle, or orifice
  1.06           .. (2 indent ) Gas
  1.07           ... (3 indent ) Span or zero
  1.08           . (1 indent ) Dynamometer
  1.09           .. (2 indent ) Torque
  1.11           ... (3 indent ) Electrical
  1.12           ... (3 indent ) Wrench
  1.13           .. (2 indent ) Weight
  1.14           .. (2 indent ) Rotor unbalance or a roller having a smooth surface
  1.15           .. (2 indent ) Load cell (e.g., strain gauge or piezoelectric sensor)
  1.16           . (1 indent ) Volume of flow, speed of flow, volume rate of flow, or mass rate of flow
  1.17           .. (2 indent ) Plug with leak detector
  1.18           .. (2 indent ) Sphere
  1.19           .. (2 indent ) Piston
  1.21           ... (3 indent ) With plural pistons
  1.22           ... (3 indent ) With magnetic or optical sensor
  1.23           ... (3 indent ) With position sensing switch
  1.24           .. (2 indent ) Tracer
  1.25           .. (2 indent ) Orifice or restriction
  1.26           ... (3 indent ) Nozzle or venturi
  1.27           .. (2 indent ) Turbine, geared meter, pulse activated, or counter
  1.28           ... (3 indent ) Turbine or geared meter
  1.29           .. (2 indent ) Anemometer or pitot tube
  1.31           .. (2 indent ) With liquid level monitor or timer
  1.32           ... (3 indent ) Prover bell
  1.33           .. (2 indent ) With floating element or weighing
  1.34           .. (2 indent ) With signal processing, span or set point adjustment (e.g., zero correction)
  1.35           .. (2 indent ) With pressure measurement or plural flowmeters
  1.36           .. (2 indent ) Metering dispenser
  1.37           . (1 indent ) Speed, velocity, or acceleration
  1.38           .. (2 indent ) Acceleration utilizing an inertial element
  1.39           ... (3 indent ) Involving pendulum or impact
  1.41           .. (2 indent ) Optical or magnetic sensing
  1.42           . (1 indent ) Timing apparatus (e.g., fuse, camera, or shutter)
  1.43           .. (2 indent ) Chronometer (e.g., clock, watch, or watch unbalance)
  1.44           ... (3 indent ) Using antenna or radio frequency (RF)
  1.45           ... (3 indent ) Using optical sensor or element
  1.46           .... (4 indent ) With sound sensor
  1.47           .... (4 indent ) Resilient element
  1.48           ... (3 indent ) Using sound sensor or piezoelectric vibration sensor
  1.49           .... (4 indent ) Plural watches or plural sensors
  1.51           .... (4 indent ) Resilient element
  1.52           ... (3 indent ) Plural watches
  1.53           ... (3 indent ) With resilient element
  1.54           .... (4 indent ) Coil spring
  1.55           .... (5 indent ) Plural coil springs
  1.56           .. (2 indent ) Optical instrument (e.g., camera shutter) or optical sensor
  1.57           . (1 indent ) Fluid pressure
  1.58           .. (2 indent ) Vacuum
  1.59           .. (2 indent ) With signal correction or processing
  1.61           ... (3 indent ) Span
  1.62           ... (3 indent ) Zero
  1.63           ... (3 indent ) With reference source or attachment therefor
  1.64           .... (4 indent ) Varying
  1.65           .. (2 indent ) Dead weight type
  1.66           .. (2 indent ) Varying
  1.67           ... (3 indent ) Using or containing liquid
  1.68           .. (2 indent ) With piston and cylinder
  1.69           .. (2 indent ) Using or containing liquid
  1.71           .. (2 indent ) Pressure activated device
  1.72           ... (3 indent ) Valve
  1.73           . (1 indent ) Liquid level or volume measuring apparatus
  1.74           .. (2 indent ) Volumetric dispenser (e.g., pipette)
  1.75           . (1 indent ) Angle, direction, or inclination
  1.76           .. (2 indent ) Compass
  1.77           .. (2 indent ) Gyroscope
  1.78           .. (2 indent ) Aircraft, inertial navigation, or attitude
  1.79           . (1 indent ) Displacement, motion, distance, or position
  1.81           .. (2 indent ) Length, width, or height
  1.82           . (1 indent ) Apparatus for measuring by use of vibration or apparatus for measuring vibration (e.g., acoustic or ultrasonic)
  1.83           .. (2 indent ) Liquid
  1.84           .. (2 indent ) Rotary or rotor unbalance
  1.85           .. (2 indent ) Seismic (e.g., geophone) or with optical sensor
  1.86           .. (2 indent ) Reference standard detail
  1.87           . (1 indent ) Centrifuge
  1.88           . (1 indent ) Span or set point adjustment (e.g., zero correction)
  1.89           . (1 indent ) Roughness or hardness
  7           BY ABRASION, MILLING, RUBBING, OR SCUFFING
  8           . (1 indent ) Wheel tread, tire, track, or roadway
  9           FRICTIONAL RESISTANCE, COEFFICIENT OR CHARACTERISTICS
  10           . (1 indent ) Lubricant testing
  11.01           TESTING IMPACT DELIVERING DEVICE (E.G., A HAMMER)
  11.02           . (1 indent ) Shot peener
  11.03           . (1 indent ) Pile driving hammer
  11.04           TESTING OF SHOCK ABSORBING DEVICE (E.G., AUTOMOBILE SHOCK ABSORBER, GUN RECOIL APPARATUS, ETC.)
  11.05           . (1 indent ) Torsional vibration damper
  11.06           . (1 indent ) Railway draft gear
  11.07           . (1 indent ) In situ vehicle suspension
  11.08           .. (2 indent ) By applying reciprocating or oscillating motion
  11.09           . (1 indent ) By applying reciprocating or oscillating motion
  12.01           TESTING BY IMPACT OR SHOCK
  12.02           . (1 indent ) Resilient ball (e.g., golf ball, baseball, etc.)
  12.03           . (1 indent ) Typewriting ribbon or carbon paper
  12.04           . (1 indent ) Accelerated or decelerated specimen (e.g., propelled or dropped specimen support carriage)
  12.05           .. (2 indent ) Particle or projectile specimen
  12.06           .. (2 indent ) Dropped
  12.07           .. (2 indent ) By hydraulic or pneumatic forces
  12.08           . (1 indent ) Specimen directly subjected to a fluid pressure pulse or wave
  12.09           . (1 indent ) Specimen impactor detail
  12.11           .. (2 indent ) Particle or projectile
  12.12           .. (2 indent ) Reciprocating or oscillating
  12.13           .. (2 indent ) Dropped
  12.14           ... (3 indent ) Pivoted
  19.01           GAS CONTENT OF A LIQUID OR A SOLID
  19.02           . (1 indent ) By gas chromatography
  19.03           . (1 indent ) By vibration
  19.04           . (1 indent ) By rate of flow of the gas
  19.05           . (1 indent ) By pressure of the gas
  19.06           .. (2 indent ) Of a beverage
  19.07           . (1 indent ) Of metal
  19.08           . (1 indent ) Of concrete, mortar, or plastic while in a fluent state
  19.09           . (1 indent ) Of mud
  19.1           . (1 indent ) Of a liquid
  19.11           .. (2 indent ) Lubricant
  19.12           . (1 indent ) Particular separator
  23.2           GAS ANALYSIS
  23.21           . (1 indent ) With compensation detail (for error or drift correction, etc.)
  23.22           .. (2 indent ) For gas chromatography
  23.23           ... (3 indent ) Baseline drift correction circuitry
  23.24           ... (3 indent ) Rate of flow
  23.25           ... (3 indent ) Temperature
  23.26           .... (4 indent ) Gradient
  23.27           ... (3 indent ) Pressure
  23.28           .. (2 indent ) For density or specific gravity
  23.29           ... (3 indent ) Pressure
  23.3           . (1 indent ) Breath analysis
  23.31           . (1 indent ) Gas of combustion
  23.32           .. (2 indent ) Air-fuel ratio
  23.33           ... (3 indent ) Solid content
  23.34           . (1 indent ) Odor
  23.35           . (1 indent ) Gas chromatography
  23.36           .. (2 indent ) With electrical computer or data processor control
  23.37           .. (2 indent ) With spectrometer
  23.38           .. (2 indent ) Petrochemical
  23.39           .. (2 indent ) Column detail
  23.4           .. (2 indent ) Detector detail
  23.41           .. (2 indent ) Including sample preparation or sampling
  23.42           .. (2 indent ) Detail of gas handling means
  24.01           . (1 indent ) By vibration
  24.02           .. (2 indent ) Produced by radiant energy
  24.03           .. (2 indent ) Solid content of gas
  24.04           .. (2 indent ) Moisture content or vapor pressure of gas
  24.05           .. (2 indent ) Density or specific gravity of gas
  24.06           .. (2 indent ) Detector detail
  25.01           . (1 indent ) By thermal property
  25.02           .. (2 indent ) With magnetic property (e.g., paramagnetic gas)
  25.03           .. (2 indent ) Thermoconductivity
  25.04           .. (2 indent ) Moisture content or vapor pressure
  25.05           .. (2 indent ) Detector detail
  28.01           . (1 indent ) Solid content of gas
  28.02           .. (2 indent ) Particle charging
  28.03           .. (2 indent ) Pressure
  28.04           .. (2 indent ) Separator detail
  28.05           ... (3 indent ) Impactor
  28.06           .... (4 indent ) Fractionalizing
  29.01           . (1 indent ) Moisture content or vapor pressure
  29.02           .. (2 indent ) Hygrometer
  335.01           ... (3 indent ) With optical element
  335.02           ... (3 indent ) With electric circuitry or electric circuit component detail
  335.03           .... (4 indent ) Impedance
  335.04           .... (5 indent ) Capacitance
  335.05           .... (5 indent ) Resistance or conductivity
  335.06           ... (3 indent ) Wet and dry responsive elements
  335.07           .... (4 indent ) With direct readout or calculator detail
  335.08           .... (4 indent ) Wet bulb detail
  335.09           .... (5 indent ) Relative air motion creating means (e.g., sling psychrometer)
  335.11           ... (3 indent ) Expanding-sorption element
  335.12           .... (4 indent ) Coiled or twisted
  335.13           .... (4 indent ) Arcuate or elongated
  335.14           .... (4 indent ) Tensioned
  29.03           .. (2 indent ) Pressure
  29.04           .. (2 indent ) With visual indication
  29.05           .. (2 indent ) Detector detail
  30.01           . (1 indent ) Density or specific gravity
  30.02           .. (2 indent ) By pressure measurement
  30.03           .. (2 indent ) By rate of flow
  30.04           .. (2 indent ) Detector detail
  31.01           . (1 indent ) Ambient air
  31.02           .. (2 indent ) Impurity
  31.03           . (1 indent ) Impurity
  31.04           . (1 indent ) Pressure
  31.05           . (1 indent ) Detector detail
  31.06           .. (2 indent ) Semiconductor
  31.07           . (1 indent ) Particular separator
  32R           SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID
  433           . (1 indent ) With weighing feature
  434           .. (2 indent ) Continuous test fluid supply
  435           .. (2 indent ) Plural supports for specimen
  436           ... (3 indent ) Vertically, commonly suspended
  437           .. (2 indent ) Immersion
  438           . (1 indent ) Hydrostatic pressure type
  439           .. (2 indent ) Bubble tube
  440           . (1 indent ) Multiple floats of graduated density
  441           . (1 indent ) Portable hand manipulable syringe type
  442           .. (2 indent ) With thermometer
  443           ... (3 indent ) With calculator
  444           . (1 indent ) Freely vertical reciprocable float with carried indicium
  445           .. (2 indent ) Continuous test fluid supply
  446           .. (2 indent ) With section means
  447           .. (2 indent ) With liquid level responsive gauge or compensator
  448           .. (2 indent ) Float structure
  449           ... (3 indent ) With carried thermometer or thermal compensator
  450           ... (3 indent ) Specimen carrying
  451           . (1 indent ) Float operated indicator
  452           .. (2 indent ) Continuous test fluid supply
  453           .. (2 indent ) Electrical indication
  454           .. (2 indent ) Pivoted float
  32A           . (1 indent ) Involving vibration of substance or the measuring apparatus
  35.01           ENGINE DETONATION (E.G., KNOCK)
  35.02           . (1 indent ) Fuel rating (e.g., octane rating)
  35.03           . (1 indent ) Combustion signal compared to reference signal varied by a condition of the engine
  35.04           .. (2 indent ) Including calculation means
  35.05           .. (2 indent ) Automatic gain control or feedback control
  35.06           . (1 indent ) Combustion signal compared to a fixed reference signal or utilizing a threshold value
  35.07           . (1 indent ) Specific type of detonation sensor
  35.08           .. (2 indent ) Ionization
  35.09           .. (2 indent ) Vibration
  35.11           ... (3 indent ) Piezoelectric
  35.12           .. (2 indent ) Pressure
  35.13           ... (3 indent ) Piezoelectric
  35.14           EXPLOSIVE
  35.15           . (1 indent ) By time measurement (e.g., burning rate, detonation velocity)
  35.16           . (1 indent ) Electric sensor
  35.17           . (1 indent ) Safety feature or containment structure
  36           ILLUMINATING FLUID
  37           WITH FLUID PRESSURE
  37.5           . (1 indent ) Dimension, shape, or size
  37.6           .. (2 indent ) Moving specimen
  37.7           ... (3 indent ) Sheet or filament
  37.8           .. (2 indent ) Plural tests
  37.9           .. (2 indent ) Internal gauging
  38           . (1 indent ) Porosity or permeability
  39           . (1 indent ) Fluid pressure brake system or unit
  40           . (1 indent ) Leakage
  40.5R           .. (2 indent ) Fluid handling conduit in situ
  40.5A           ... (3 indent ) Using acoustic detectors
  40.7           .. (2 indent ) By probe gas, vapor, or powder
  41           .. (2 indent ) Conveyor feed
  41.2           ... (3 indent ) With immersion
  41.3           .... (4 indent ) Defective article discard
  41.4           .... (5 indent ) Automatic
  45           ... (3 indent ) With defective article discard
  45.1           .... (4 indent ) Automatic
  45.2           .... (5 indent ) Electrically controlled
  45.3           .... (5 indent ) Vacuum support failure
  45.4           .... (5 indent ) Sealed receptacle
  45.5           .. (2 indent ) With immersion
  45.6           ... (3 indent ) Pneumatic tire
  45.7           .... (4 indent ) Mesh envelope
  45.8           ... (3 indent ) Radiator
  46           .. (2 indent ) Between fitted parts (e.g., joints)
  47           ... (3 indent ) Piston, piston ring, or engine valve
  48           ... (3 indent ) Tire valve
  49           .. (2 indent ) Pneumatic tire
  49.1           .. (2 indent ) Pipe
  49.2           .. (2 indent ) Receptacle
  49.3           ... (3 indent ) Sealed
  49.4           . (1 indent ) With ram pressure inducer
  49.5           . (1 indent ) Pipe
  49.6           .. (2 indent ) With power-operated closure or seal
  49.7           . (1 indent ) Motor part or auxiliary
  49.8           . (1 indent ) 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           . (1 indent ) Butter fat content
  53.03           . (1 indent ) Paper or wood suspension (e.g., paper or wood pulp)
  53.04           .. (2 indent ) By measuring fluid flow characteristic (e.g., by volume or rate of flow or by change in fluid level)
  53.05           . (1 indent ) Lubricant testing
  53.06           .. (2 indent ) By analyzing a characteristic of a measuring surface
  53.07           .. (2 indent ) By solid content
  54.01           . (1 indent ) Viscosity
  54.02           .. (2 indent ) Combined with other measuring means
  54.03           .. (2 indent ) Of concrete (e.g., slump indicator)
  54.04           .. (2 indent ) Friction tube (e.g., capillary)
  54.05           ... (3 indent ) Plural tubes
  54.06           .... (4 indent ) By pressure measuring
  54.07           ... (3 indent ) By time interval of travel or flow rate measuring
  54.08           .... (4 indent ) Including a photocell
  54.09           ... (3 indent ) By pressure measuring
  54.11           .. (2 indent ) Orifice, nozzle, or extrusion means
  54.12           ... (3 indent ) Plural fluids (e.g., comparison)
  54.13           ... (3 indent ) By time interval of travel or flow rate measuring
  54.14           ... (3 indent ) By force, pressure, or displacement measuring
  54.15           .. (2 indent ) Gravity movement of an object in a liquid (e.g., a bubble)
  54.16           ... (3 indent ) With detail of temperature or pressure regulating or compensating means
  54.17           ... (3 indent ) Using a reference fluid
  54.18           ... (3 indent ) With means for restoring an object to its initial starting position (e.g., magnetic or fluid means)
  54.19           ... (3 indent ) Including detail of a timing detection circuit
  54.21           ... (3 indent ) Including an object concentricity guide means
  54.22           .. (2 indent ) Adhesion between wetted surfaces
  54.23           .. (2 indent ) Force reactance to member driven therein
  54.24           ... (3 indent ) By vibration
  54.25           .... (4 indent ) Dampening effect (e.g., frequency, amplitude, speed, or power measurement)
  54.26           .... (5 indent ) With detail of a drive means or a detecting means
  54.27           .... (4 indent ) With detail (e.g., circuitry) of a drive means or a detecting means
  54.28           ... (3 indent ) Rotationally driven member
  54.29           .... (4 indent ) Comparator
  54.31           .... (4 indent ) By measuring the driving force or the speed of the driven member
  54.32           .... (4 indent ) By measuring an opposed drag force
  54.33           .... (5 indent ) By measuring angular displacement
  54.34           .... (5 indent ) By measuring a counterbalance or restoring force
  54.35           .... (4 indent ) Including detail of a motor drive, a stator, or a housing structure of a motor
  54.36           ... (3 indent ) Penetrometer
  54.37           ... (3 indent ) By movement or displacement between shearing surfaces
  54.38           ... (3 indent ) Detector detail
  54.39           .. (2 indent ) Shearing torque between parallel surfaces
  54.41           .. (2 indent ) Vibration
  54.42           .. (2 indent ) Thermal
  54.43           .. (2 indent ) With detail of a pressure or a temperature regulating means
  60.11           . (1 indent ) Cleaning or foaming ability
  61.41           . (1 indent ) Content or effect of a constituent of a liquid mixture
  61.42           .. (2 indent ) Metallic particle constituent
  61.43           .. (2 indent ) Liquid constituent of a liquid mixture
  61.44           ... (3 indent ) Plural liquid constituent (e.g., multiphase liquid)
  61.45           .... (4 indent ) By vibration
  61.46           ... (3 indent ) By thermal measurement
  61.47           ... (3 indent ) By pressure measurement
  61.48           ... (3 indent ) By optical irradiation
  61.49           ... (3 indent ) By vibration
  61.51           ... (3 indent ) Buoyant detector
  61.52           ... (3 indent ) Chromatography
  61.53           .... (4 indent ) Column detail
  61.54           .... (4 indent ) Paper or thin layer type
  61.55           .... (4 indent ) Including sampling, sample handling, or sample preparation
  61.56           .... (4 indent ) Detail of fluid handling means (e.g., valve, control, etc.)
  61.57           .... (4 indent ) With detail of compensation or regulating means
  61.58           .... (4 indent ) Detector detail
  61.59           ... (3 indent ) With detail of sampling, sample handling, or sample preparation
  61.61           ... (3 indent ) Detector detail
  61.62           .. (2 indent ) Depositing characteristic
  61.63           .. (2 indent ) Settling or filtering ability
  61.64           ... (3 indent ) By volume or flow rate
  61.65           ... (3 indent ) Sedimentation rate
  61.66           .... (4 indent ) With means for accelerating solids (e.g., particles)
  61.67           .... (4 indent ) By pressure measurement
  61.68           .... (4 indent ) Including detail of fluid handling means, sampling, sample handling, or sample preparation
  61.69           .... (4 indent ) By optical measurement
  61.71           .. (2 indent ) For measuring solid components (e.g., particles)
  61.72           ... (3 indent ) By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.)
  61.73           ... (3 indent ) By flowing through barrier or restriction and measuring flow effect (e.g., pressure, volume of or rate of flow)
  61.74           .... (4 indent ) Thermal
  61.75           ... (3 indent ) Vibration
  61.76           .. (2 indent ) By thermal measurement
  61.77           ... (3 indent ) Vaporization (e.g., evaporation, distillation, etc.)
  61.78           .. (2 indent ) By pressure measurement
  61.79           .. (2 indent ) By vibration
  64.41           . (1 indent ) Gelling or coagulation
  64.42           .. (2 indent ) By vibration
  64.43           .. (2 indent ) By optical measurement
  64.44           . (1 indent ) Vapor-liquid ratio
  64.45           . (1 indent ) Vapor pressure
  64.46           .. (2 indent ) Differential pressure
  64.47           . (1 indent ) Osmotic pressure (e.g., diffusion characteristic)
  64.48           . (1 indent ) Surface tension
  64.49           .. (2 indent ) By force or torque
  64.51           .. (2 indent ) By pressure
  64.52           .. (2 indent ) Liquid droplet
  64.53           . (1 indent ) By vibration
  64.54           . (1 indent ) Molecular weight
  64.55           . (1 indent ) Interface
  64.56           . (1 indent ) Sampler, constituent separation, sample handling, or sample preparation
  65.01           CENTER OF GRAVITY; TURNING MOMENT; METACENTRIC HEIGHT
  65.02           . (1 indent ) Spherical specimen
  65.03           . (1 indent ) Ball driving sporting implement (e.g., golf club, baseball bat, etc.)
  65.04           . (1 indent ) Watercraft (e.g., metacentric height)
  65.05           . (1 indent ) Air or space vehicle
  65.06           .. (2 indent ) Electric sensor
  65.07           . (1 indent ) Dynamic
  65.08           .. (2 indent ) Torsional oscillation
  65.09           . (1 indent ) Electric sensor
  66           ROTOR UNBALANCE
  455           . (1 indent ) Propeller, impeller, or fluid coupling
  456           .. (2 indent ) Single blade balancing
  457           . (1 indent ) In situ
  458           .. (2 indent ) With counterbalancing means
  459           . (1 indent ) Combined static and dynamic
  460           . (1 indent ) Dynamic (spinning)
  461           .. (2 indent ) Mass centering
  462           .. (2 indent ) With electrical sensor and indicator
  463           ... (3 indent ) Wattmeter
  464           ... (3 indent ) Rotatable switch
  465           ... (3 indent ) Oscilloscope (cathode ray)
  466           ... (3 indent ) Stroboscopically illuminated
  467           .... (4 indent ) Indicator
  468           .. (2 indent ) With counterbalancing means
  469           ... (3 indent ) By radially and circumferentially adjustable weights
  470           ... (3 indent ) By circumferentially adjustable weights
  471           .. (2 indent ) With vibratable mount feature
  472           ... (3 indent ) Free floating rotor
  473           .... (4 indent ) Horizontal axis
  474           ... (3 indent ) One rotor end universally tiltable
  475           ... (3 indent ) Horizontal rotational axis
  476           .... (4 indent ) Horizontal plane of vibration
  477           .... (5 indent ) Both ends free
  478           ..... (6 indent ) With selective endlock
  479           .... (4 indent ) Horizontal fulcrum
  480           . (1 indent ) Gravitational moment turns rotor about spin axis
  481           .. (2 indent ) Ways
  482           . (1 indent ) Gravitational moment tilts rotor about axis transverse to spin axis
  483           .. (2 indent ) Universally tiltable
  484           ... (3 indent ) With tapered rotor centering means
  485           ... (3 indent ) With expansible or contractible centering means
  486           ... (3 indent ) With suspension means
  487           . (1 indent ) Tool and adjunct
  570           VIBRATION
  570.5           . (1 indent ) Acoustic levitation
  571           . (1 indent ) Test chamber
  572           . (1 indent ) Loose object detection
  573           . (1 indent ) Hardness or compliance
  574           . (1 indent ) Mechanical impedance
  575           .. (2 indent ) Of an elastomer
  576           .. (2 indent ) Device having an electromagnetic drive
  577           . (1 indent ) Fatigue study
  578           .. (2 indent ) Electromagnetic drive
  579           . (1 indent ) Resonance, frequency, or amplitude study
  580           .. (2 indent ) Including weight determination
  581           .. (2 indent ) Including axial force determination
  582           .. (2 indent ) Including structural bond evaluation
  583           .. (2 indent ) Of aircraft or related structural element
  584           . (1 indent ) By mechanical waves
  585           .. (2 indent ) Including ear or hearing testing
  586           .. (2 indent ) Reverberation
  587           .. (2 indent ) Acoustic emission
  588           .. (2 indent ) Structural bond evaluation
  589           .. (2 indent ) Acoustical impedance
  590           .. (2 indent ) In detection of a liquid reaction, a chemical reaction, or a nuclear reaction
  591           .. (2 indent ) Listening or sound tube
  592           .. (2 indent ) Fluid, fluid leak, or pipe flaw detection
  593           .. (2 indent ) Bearing, gear, or related moving mechanism
  594           .. (2 indent ) Soil or building structure
  595           .. (2 indent ) Frangible
  596           .. (2 indent ) Beamed
  597           ... (3 indent ) Velocity or propagation time measurement
  598           .... (4 indent ) For flaw or discontinuity detection
  599           ... (3 indent ) Attenuation measurement
  600           .... (4 indent ) For flaw or discontinuity detection
  601           ... (3 indent ) Having plural, diverse forms of radiant energy
  602           ... (3 indent ) With signal analyzing or mathematical processing
  603           ... (3 indent ) Acoustic holography
  604           .... (4 indent ) Having means substituted for reference signal
  605           .... (4 indent ) Liquid or deformable surface holography
  606           ... (3 indent ) Imaging of discontinuity with stationary sonic transmitter
  607           .... (4 indent ) By scan of a sonic receiver
  608           .... (4 indent ) By Bragg diffraction
  609           ... (3 indent ) Measuring or testing system having threshold, gating, delay, or blocking means
  610           .... (4 indent ) Electronic gating
  611           .... (5 indent ) Adjustably responsive to information signal
  612           .... (5 indent ) Plural gating
  613           .... (5 indent ) Of noise
  614           .... (5 indent ) Of signals to pass only echoes from within test body
  615           .... (5 indent ) Of signals to pass only echoes from front surface or flaw and from rear surface of test body
  616           .... (5 indent ) Of signals to pass only echoes from rear surface of test body
  617           .... (4 indent ) Having mechanical delay or mechanical blocking
  618           ... (3 indent ) Measuring or testing system having scanning means
  619           .... (4 indent ) Programmed scan
  620           .... (4 indent ) By reflected wave
  621           .... (5 indent ) Having compound scan
  622           .... (5 indent ) Of tubing, vessel, or cylindrical object
  623           ..... (6 indent ) Scan from within object
  624           .... (5 indent ) Having separate sonic transmitter and receiver
  625           .... (5 indent ) Having plural sonic type transmitter or receiver transducers
  626           ..... (6 indent ) Switched
  627           ... (3 indent ) By reflected wave
  628           .... (4 indent ) Having plural sonic type transmitters or receivers tranducers
  629           .... (4 indent ) Having unitary sonic type transmitter-receiver transducer
  630           .... (5 indent ) Establishing resonance in a test body
  631           .... (5 indent ) Having automatic gain control
  632           ... (3 indent ) Sonic wave transmitter or receiver transducer
  633           .... (4 indent ) Having transducer scanning means
  634           .... (5 indent ) Automatic transducer positioning
  635           .... (5 indent ) Rolling contact
  636           ..... (6 indent ) On railroad rails
  637           ..... (6 indent ) Around cylindrical object
  638           ..... (6 indent ) Along cylindrical object
  639           ..... (6 indent ) Transducer forms wheel or is within a wheel
  640           .... (5 indent ) Scanning curved surface in direction of curvature
  641           .... (5 indent ) Plural sonic transmitters or receivers
  642           .... (4 indent ) Having wave shaping means
  643           .... (4 indent ) Nonvibrating transducer
  644           .... (4 indent ) Having significant coupling means
  645           .. (2 indent ) Acoustic parameter
  646           ... (3 indent ) Amplitude, power, or intensity
  647           .... (4 indent ) Current generating or modifying
  648           .... (5 indent ) Frequency sensitive
  649           . (1 indent ) Sensing apparatus
  650           .. (2 indent ) Torsional
  651           .. (2 indent ) Vibratable reed
  652           .. (2 indent ) With inertia element
  653           ... (3 indent ) With light beam indicator
  654           ... (3 indent ) With electrically controlled indicator
  655           .. (2 indent ) With light beam indicator
  656           ... (3 indent ) By optical holography
  657           ... (3 indent ) By frequency or phase shift
  658           .. (2 indent ) With electrically controlled indicator
  659           ... (3 indent ) Spectrum analysis
  660           ... (3 indent ) Rotating machinery or device
  661           ... (3 indent ) Having a probe
  662           . (1 indent ) Vibrator
  663           .. (2 indent ) Table, platform, or other support
  664           ... (3 indent ) Circuitry
  665           ... (3 indent ) Having fluid bearing or fluid pressure actuated
  666           ... (3 indent ) Having spring support
  667           ... (3 indent ) Eccentrically vibrated
  668           ... (3 indent ) Electromagnetically vibrated
  669           .. (2 indent ) Vehicle shaker
  670           ... (3 indent ) Treadmill
  671           .. (2 indent ) Having a fluid jet
  672           .. (2 indent ) Having a rotatable imbalanced mass
  73           MOISTURE CONTENT OR ABSORPTION CHARACTERISTIC OF MATERIAL
  74           . (1 indent ) By residual capacity measurement
  75           . (1 indent ) By heat conductivity
  76           . (1 indent ) By desiccation or extraction
  77           . (1 indent ) By wet and dry bulb temperature
  78           HARDNESS
  79           . (1 indent ) Scleroscope or rebound
  81           . (1 indent ) By penetrator or indentor
  82           .. (2 indent ) Impact type
  83           .. (2 indent ) With successive minor and major load
  84           .. (2 indent ) Soil bearing capacity
  85           .. (2 indent ) Penetrator element
  86           EMBRITTLEMENT OR EROSION
  87           DUCTILITY OR BRITTLENESS
  760           SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION
  761           . (1 indent ) Threaded fastener stress
  762           . (1 indent ) Indicating coating or sheet providing direct visual indication (e.g., cracking, color change)
  763           . (1 indent ) Specified electrical sensor or system
  764           .. (2 indent ) Having level attainment counter
  765           .. (2 indent ) Compensation (e.g., linearization)
  766           ... (3 indent ) Temperature
  767           .. (2 indent ) Plural sensors at single location (e.g., diverse orientation, plural level)
  768           .. (2 indent ) Sensor embedded in specimen
  769           .. (2 indent ) Coupling circuit for specific additional purpose (e.g., noise suppression) or having specified structure
  770           ... (3 indent ) Peak indicating system
  771           ... (3 indent ) Having selector switching means
  772           ... (3 indent ) Plural sensed signal system
  773           ... (3 indent ) Specified signal transmitting link
  774           .. (2 indent ) Specified sensor structure
  775           ... (3 indent ) Bonded to specimen
  776           .... (4 indent ) Sensor comprises coating
  777           ... (3 indent ) Semiconductor
  778           ... (3 indent ) Vibratory element
  779           ... (3 indent ) Magnetic or inductive
  780           ... (3 indent ) Capacitive
  781           . (1 indent ) Specified load or strain transmission device from specimen to electrical detector
  782           .. (2 indent ) Strain multiplier
  783           . (1 indent ) Deformation or change in stress after fracture, cutting, or boring
  784           . (1 indent ) Earth stresses
  785           . (1 indent ) Prestressed specimen
  786           . (1 indent ) In static structures (e.g., buildings, bridges)
  787           . (1 indent ) Stress or strain history of a specimen without application of a load
  788           . (1 indent ) By loading of specimen (e.g., strength of material test)
  789           .. (2 indent ) Stress-strain relationship determination
  790           ... (3 indent ) Compression
  791           ... (3 indent ) Graphical output
  792           .... (4 indent ) Moving chart
  793           .... (5 indent ) Drum
  794           .. (2 indent ) Plural diverse stress-strain tests or composite loads
  795           ... (3 indent ) Strain
  796           ... (3 indent ) Tension-compression
  797           .... (4 indent ) Alternating
  798           .... (4 indent ) Hydraulic or pneumatic actuation
  799           .. (2 indent ) Specimen cracking or crack propagation
  800           .. (2 indent ) Optical
  801           .. (2 indent ) Acoustic emission
  802           .. (2 indent ) Aircraft structure
  803           .. (2 indent ) Concrete
  804           .. (2 indent ) Model of structure to determine structure properties
  805           .. (2 indent ) Varied in response to specimen condition other than failure
  806           .. (2 indent ) Varied according to predetermined pattern
  807           ... (3 indent ) Applied directly by fluid pressure
  808           ... (3 indent ) Repetitive
  809           .... (4 indent ) Plural specimen
  810           .... (4 indent ) To failure
  811           .... (4 indent ) Electric control circuit or particular loading device
  812           .... (4 indent ) Flexing, bending, or folding
  813           .... (4 indent ) Compressive
  814           .... (4 indent ) Torsional
  815           .... (4 indent ) Shear
  816           ... (3 indent ) Hydraulic or pneumatic actuation
  817           ... (3 indent ) Motor driven actuating screw
  818           .. (2 indent ) Compressional
  819           ... (3 indent ) Plural specimen or multiaxial loading
  820           ... (3 indent ) Fluid displacement provides indication
  821           ... (3 indent ) To fracture, crushing, or yield point
  822           ... (3 indent ) Plastic flow or creep
  823           ... (3 indent ) Residual deformation (e.g., consolidation)
  824           ... (3 indent ) By rotating squeezing element
  825           ... (3 indent ) With hydraulic or pneumatic actuation
  826           .. (2 indent ) Tensile
  827           ... (3 indent ) Bond test
  828           ... (3 indent ) Strand or chain test
  829           .... (4 indent ) By roller
  830           .... (4 indent ) To failure
  831           ... (3 indent ) Having specified clamp
  832           .... (4 indent ) Interior to specimen
  833           .... (4 indent ) Jaws
  834           ... (3 indent ) To failure
  835           .... (4 indent ) Tear
  836           ... (3 indent ) Pendulum dynamometer
  837           ... (3 indent ) Hydraulic or pneumatic actuation
  838           .. (2 indent ) Rupture or burst strength of sheet material by transverse loading
  839           ... (3 indent ) Including cutting or piercing element
  840           ... (3 indent ) Hydraulic or pneumatic actuation
  841           .. (2 indent ) Shear
  842           ... (3 indent ) Bond
  843           ... (3 indent ) By rotary element
  844           ... (3 indent ) Impact (e.g., pendulum)
  845           ... (3 indent ) To fracture or failure
  846           ... (3 indent ) Opposing work holders including specimen
  847           .. (2 indent ) Torsion
  848           ... (3 indent ) To failure
  849           .. (2 indent ) Bending, flexing, or folding
  850           ... (3 indent ) Weld testing
  851           ... (3 indent ) To failure or fracture
  852           ... (3 indent ) Loading means intermediate stationary end holders or supports
  853           ... (3 indent ) Having opposite ends of specimen clamped
  854           ... (3 indent ) By angular displacement of opposite ends of specimen
  855           . (1 indent ) Support, holder, or housing for unspecified type electrical sensing element
  856           . (1 indent ) Specimen clamp, holder, or support
  857           .. (2 indent ) With hydraulic or pneumatic actuation of grip
  858           .. (2 indent ) Winding drum or roller type
  859           .. (2 indent ) With wedging or camming elements contacting specimen
  860           .. (2 indent ) Opposed pair
  104           SURFACE AND CUTTING EDGE TESTING
  105           . (1 indent ) Roughness
  112.01           TURBINE ENGINE
  112.02           . (1 indent ) Steam powered
  112.03           . (1 indent ) Efficiency
  112.04           . (1 indent ) Output thrust
  112.05           . (1 indent ) Compressor
  112.06           .. (2 indent ) Surge or stall
  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           . (1 indent ) Irregular combustion (e.g., misfire)
  114.03           .. (2 indent ) By time variation
  114.04           .. (2 indent ) By speed variation
  114.05           .. (2 indent ) By acceleration
  114.06           .. (2 indent ) By exhaust pressure
  114.07           .. (2 indent ) By vibration
  114.08           .. (2 indent ) By ignition measurement
  114.09           .. (2 indent ) By optical measurement
  114.11           .. (2 indent ) By torque variation
  114.12           .. (2 indent ) Having road condition detection
  114.13           . (1 indent ) Power output
  114.14           .. (2 indent ) As horsepower
  114.15           .. (2 indent ) As torque
  114.16           . (1 indent ) Compression (i.e., cylinder pressure)
  114.17           .. (2 indent ) As a mean effective pressure
  114.18           .. (2 indent ) Pressure sensor detail
  114.19           ... (3 indent ) Combined with spark plug
  114.21           .... (4 indent ) Washer type
  114.22           .. (2 indent ) Using engine speed
  114.23           .. (2 indent ) Using starter current
  114.24           . (1 indent ) Engine acceleration
  114.25           . (1 indent ) Engine speed
  114.26           . (1 indent ) Relative rotational position
  114.27           .. (2 indent ) With cylinder phase identification
  114.28           ... (3 indent ) Piston position
  114.29           .... (4 indent ) Using microwave energy
  114.31           . (1 indent ) Monitoring intake air system (e.g., air filter)
  114.32           .. (2 indent ) Intake flow rate
  114.33           ... (3 indent ) Using pressure measurement
  114.34           ... (3 indent ) Using thermal measurement
  114.35           ... (3 indent ) Using a vortex
  114.36           .. (2 indent ) Throttle position sensor or idling state detection
  114.37           .. (2 indent ) Intake air pressure
  114.38           . (1 indent ) Fuel system or part thereof
  114.39           .. (2 indent ) With vapor vent or purge
  114.41           .. (2 indent ) Fuel pump
  114.42           .. (2 indent ) Fuel flow
  114.43           .. (2 indent ) Fuel pressure
  114.44           .. (2 indent ) Carburetor
  114.45           .. (2 indent ) Fuel injector
  114.46           ... (3 indent ) Spray pattern
  114.47           ... (3 indent ) Needle position
  114.48           ... (3 indent ) Volume flow amount
  114.49           ... (3 indent ) Injector timing
  114.51           ... (3 indent ) Injector pressure
  114.52           . (1 indent ) Fuel consumption
  114.53           .. (2 indent ) Fuel efficiency or economy
  114.54           .. (2 indent ) Remaining fuel (amount or range)
  114.55           . (1 indent ) Lubricant condition
  114.56           . (1 indent ) Lubrication system
  114.57           .. (2 indent ) Pressure
  114.58           . (1 indent ) Electrical system
  114.59           .. (2 indent ) Starter or alternator
  114.61           .. (2 indent ) Electronic control unit
  114.62           .. (2 indent ) Ignition
  114.63           ... (3 indent ) Timing
  114.64           .... (4 indent ) Using a tool
  114.65           .... (5 indent ) Timing light
  114.66           ... (3 indent ) Distributor
  114.67           ... (3 indent ) For ionization
  114.68           . (1 indent ) Cooling system
  114.69           . (1 indent ) Exhaust system
  114.71           .. (2 indent ) Exhaust gas component analysis
  114.72           ... (3 indent ) For air/fuel ratio
  114.73           ... (3 indent ) With oxygen sensor
  114.74           .. (2 indent ) Exhaust gas recirculation system (EGR)
  114.75           .. (2 indent ) Catalyst or catalytic converter
  114.76           .. (2 indent ) Exhaust pressure
  114.77           . (1 indent ) Testing of an individual engine part
  114.78           .. (2 indent ) Piston ring
  114.79           .. (2 indent ) Valve train
  114.81           .. (2 indent ) Bearing
  115.01           VEHICLE DRIVE TRAIN
  115.02           . (1 indent ) Transmission
  115.03           .. (2 indent ) Manual
  115.04           ... (3 indent ) Clutch
  115.05           . (1 indent ) Drive shaft
  115.06           . (1 indent ) Rear end (e.g., differential)
  115.07           . (1 indent ) Wheel or axle component
  115.08           .. (2 indent ) To determine speed
  116.01           TEST STAND
  116.02           . (1 indent ) For engine
  116.03           .. (2 indent ) Turbine engine
  116.04           .. (2 indent ) For an auxiliary component to the engine
  116.05           .. (2 indent ) With dynamometer
  116.06           ... (3 indent ) With vehicle support
  116.07           .... (4 indent ) On a belt
  116.08           .... (4 indent ) Vehicle positioning
  116.09           .... (4 indent ) For a two-wheeled vehicle
  116.11           .... (4 indent ) For a tracked vehicle
  117.01           VEHICLE CHASSIS
  117.02           . (1 indent ) Steering
  117.03           . (1 indent ) Suspension system
  118.01           SIMULATING OPERATING CONDITION
  118.02           . (1 indent ) Engine specific
  118.03           . (1 indent ) Aircraft
  118.04           . (1 indent ) Marine
  121           BRAKE TESTING
  122           . (1 indent ) Slidable platform
  123           . (1 indent ) Roller or belt wheel support
  124           .. (2 indent ) Relatively shiftable front and rear wheel supports
  125           .. (2 indent ) Inertia type
  126           .. (2 indent ) With driving effort indication
  127           ... (3 indent ) Single wheel portable unit
  128           . (1 indent ) Road test attachment or adjunct
  129           . (1 indent ) Vehicle installation
  130           . (1 indent ) Single wheel rotating and resistance measuring means
  131           .. (2 indent ) Torque measuring lever
  132           . (1 indent ) Brake depressor with measuring means
  862           DYNAMOMETERS
  862.01           . (1 indent ) For testing force-biased connections
  862.02           .. (2 indent ) Ski bindings
  862.03           . (1 indent ) For testing relative pulling power (e.g., for contests)
  862.041           . (1 indent ) Responsive to multiple loads or load components
  862.042           .. (2 indent ) Along or about mutually orthogonal axes
  862.043           ... (3 indent ) Three dimensional (e.g., x, y, z axes)
  862.044           .... (4 indent ) Using a resistance strain gage
  862.045           .. (2 indent ) Using a resistance strain gage
  862.046           .. (2 indent ) Transducer array (e.g., columns and rows)
  862.05           .. (2 indent ) Applied to guidance means
  862.06           .. (2 indent ) On machine tools
  862.07           .. (2 indent ) To determine distribution of tensile stress
  862.08           . (1 indent ) Responsive to torque
  862.09           .. (2 indent ) By absorption
  862.11           ... (3 indent ) Having plural brake means
  862.12           ... (3 indent ) Having friction brake means
  862.13           .... (4 indent ) Automatic load control
  862.14           ... (3 indent ) Having fluid brake means
  862.15           .... (4 indent ) Air brakes
  862.16           .... (4 indent ) Automatic load control
  862.17           ... (3 indent ) Having magnetic or electromagnetic brake means
  862.18           .... (4 indent ) Automatic load control
  862.191           .. (2 indent ) During transmission to an external load
  862.21           ... (3 indent ) For making or breaking threaded connections (e.g., torque measuring wrenches)
  862.22           .... (4 indent ) With variable capacity or sensitivity
  862.23           .... (4 indent ) With detection of specific torque value or condition (e.g., peak torque)
  862.24           .... (5 indent ) Rate of change
  862.25           .... (4 indent ) Power tongs
  862.26           .... (4 indent ) Bending beam type
  862.27           ... (3 indent ) With recording or totalizing means
  862.28           ... (3 indent ) With electrical computation of horsepower
  862.29           ... (3 indent ) By measuring reaction forces of a prime mover
  862.31           ... (3 indent ) By measuring reaction forces of transmission gearing
  862.321           ... (3 indent ) By measuring elastic deformation of a torque transmitting member
  862.322           .... (4 indent ) With rotary to linear conversion
  862.323           .... (4 indent ) Using a flowing fluid (e.g., using a shaft mounted nozzle and baffle)
  862.324           .... (4 indent ) Using a light sensor
  862.325           .... (4 indent ) Using an electrical sensor
  862.326           .... (5 indent ) Phase angle detection
  862.327           ..... (6 indent ) Vernier type
  862.328           ..... (6 indent ) By plural toothed or notched sensing means
  862.329           ...... (7 indent ) Interlaced teeth
  862.331           .... (5 indent ) Inductance or reluctance sensor
  862.332           ..... (6 indent ) Variable air gap in a magnetic core
  862.333           ..... (6 indent ) Detecting magnetostrictive or magnetoelastic property
  862.334           ...... (7 indent ) Grooved or slotted torsion shaft
  862.335           ...... (7 indent ) Magnetic sleeve or layer
  862.336           ....... (8 indent ) Particular constituent
  862.337           .... (5 indent ) Capacitance sensor
  862.338           .... (5 indent ) Resistance strain gage
  862.339           ..... (6 indent ) With noncontact coupling (e.g., rotary transformer)
  862.37           ... (3 indent ) By measuring the fluid pressure of a hydraulic coupling
  862.192           ... (3 indent ) By measuring angular acceleration
  862.193           ... (3 indent ) By measuring an electrical or magnetic characteristic of a torque delivering electric motor
  862.194           ... (3 indent ) By measuring tension in a drive belt or chain
  862.195           ... (3 indent ) By converting transmitted torque into axial force
  862.381           . (1 indent ) Responsive to force
  862.391           .. (2 indent ) To determine tension on a flexible element
  862.41           ... (3 indent ) By measuring vibrations (e.g., resonant frequency)
  862.42           ... (3 indent ) By applying a measured tensioning force
  862.43           .... (4 indent ) Racket stringing
  862.44           .... (4 indent ) With winding or reeling means
  862.451           ... (3 indent ) By measuring deflection or a deflecting force
  862.452           .... (4 indent ) For testing racket stringing
  862.453           .... (4 indent ) For testing a drive belt
  862.454           .... (4 indent ) Using a fluid for deflection or force measuring
  862.46           .... (4 indent ) With angular deflection
  862.471           .... (4 indent ) Using an elastically deformable force measuring means
  862.472           .... (5 indent ) With pivoted deflecting member between spaced guides or supports
  862.473           .... (5 indent ) Electrical sensor
  862.474           ..... (6 indent ) Resistance strain gage
  862.392           ... (3 indent ) By measuring axial force or stretch
  862.393           .... (4 indent ) Pulling force on an anchoring device
  862.49           .. (2 indent ) To determine axial thrust on a rotating machine element
  862.51           .. (2 indent ) With recording means
  862.52           .. (2 indent ) With variable capacity or sensitivity
  862.53           .. (2 indent ) With detection of specific force value or condition (e.g., peak force)
  862.541           .. (2 indent ) Combined
  862.55           ... (3 indent ) With pressure applying roller (e.g., mill roll)
  862.56           ... (3 indent ) With hoisting means
  862.57           ... (3 indent ) With towing means
  862.542           ... (3 indent ) With jack or press
  862.543           ... (3 indent ) With pumping unit
  862.581           .. (2 indent ) By measuring a fluid pressure
  862.582           ... (3 indent ) Using a load responsive valve or restrictor
  862.583           .... (4 indent ) Pneumatic
  862.584           ... (3 indent ) Using a piston
  862.59           .. (2 indent ) By measuring vibrations (e.g., resonant frequency)
  862.61           .. (2 indent ) By measuring a counterbalancing or restoring force
  862.621           .. (2 indent ) By measuring elastic deformation
  862.622           ... (3 indent ) With compensation
  862.623           .... (4 indent ) Temperature
  862.624           ... (3 indent ) Using a light sensor
  862.625           ... (3 indent ) Using a specific type of electrical sensor
  862.626           .... (4 indent ) Inductance or capacitance sensor
  862.627           .... (4 indent ) Resistance strain gage
  862.628           .... (5 indent ) Including a specific type of electrical circuit
  862.629           .... (5 indent ) Specific type of elastic member
  862.631           ..... (6 indent ) Axle or pivot pin
  862.632           ..... (6 indent ) Flexible element (e.g., beam, plate, or web)
  862.633           ...... (7 indent ) Parallel
  862.634           ...... (7 indent ) Cantilever
  862.635           ..... (6 indent ) Closed loop (e.g., ring or tube)
  862.636           ... (3 indent ) Specific type of elastic member
  862.637           .... (4 indent ) Flexible element (e.g., beam, plate, or web)
  862.638           .... (5 indent ) Parallel
  862.639           .... (5 indent ) Cantilever
  862.641           .... (4 indent ) Helical or spiral
  862.642           .... (4 indent ) Closed loop (e.g., ring or tube)
  862.68           .. (2 indent ) By measuring electrical properties
  862.69           .. (2 indent ) By measuring magnetic properties
  862.382           .. (2 indent ) With detail of overload protection
  146           TIRE, TREAD OR ROADWAY
  146.2           . (1 indent ) Tire inflation testing installation
  146.3           .. (2 indent ) By direct fluid pressure reading
  146.4           ... (3 indent ) Telemetric (e.g., indicator on cowl)
  146.5           .... (4 indent ) Electric
  146.8           ... (3 indent ) 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           . (1 indent ) Bond strength
  152.01           BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW)
  152.02           . (1 indent ) Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives)
  152.03           .. (2 indent ) During drilling
  152.04           ... (3 indent ) By drill mud analysis
  152.05           .. (2 indent ) Density, porosity, or permeability
  152.06           ... (3 indent ) Including oil, gas, or water saturation
  152.07           ... (3 indent ) By a core sample analysis
  152.08           .. (2 indent ) Oil, gas, or water saturation
  152.09           ... (3 indent ) By a core sample analysis
  152.11           .. (2 indent ) By a core sample analysis
  152.12           .. (2 indent ) Thermal
  152.13           ... (3 indent ) With heating or cooling
  152.14           .. (2 indent ) With radioactivity measuring
  152.15           ... (3 indent ) With vibration measuring
  152.16           .. (2 indent ) With vibration measuring
  152.17           .. (2 indent ) With detail of a borehole wall engaging means
  152.18           . (1 indent ) Fluid flow measuring or fluid analysis
  152.19           .. (2 indent ) During drilling
  152.21           ... (3 indent ) Rate of fluid flow
  152.22           ... (3 indent ) Pressure
  152.23           .. (2 indent ) With sampling
  152.24           ... (3 indent ) From formation wall
  152.25           .... (4 indent ) With a filter
  152.26           .... (4 indent ) With sealing detail
  152.27           ... (3 indent ) Pressure
  152.28           ... (3 indent ) Downhole
  152.29           .. (2 indent ) Rate of fluid flow
  152.31           ... (3 indent ) Plural diverse measuring
  152.32           ... (3 indent ) Vibration
  152.33           ... (3 indent ) Thermal
  152.34           ... (3 indent ) Rotary
  152.35           .... (4 indent ) Magnetic
  152.36           ... (3 indent ) Packer or deflector detail
  152.37           .. (2 indent ) Steady state fluid flow interruption
  152.38           ... (3 indent ) Drawdown or shutin test
  152.39           .. (2 indent ) Fluid injection into formation
  152.41           ... (3 indent ) Determining permeability or saturation
  152.42           .. (2 indent ) Determining relative proportion of fluid constituent
  152.43           . (1 indent ) During drilling
  152.44           .. (2 indent ) Drill depth rate
  152.45           ... (3 indent ) Electronic processing or electronic recording
  152.46           .. (2 indent ) Downhole measurement
  152.47           ... (3 indent ) Vibration
  152.48           ... (3 indent ) Force
  152.49           .. (2 indent ) Force
  152.51           . (1 indent ) Pressure measurement
  152.52           .. (2 indent ) Plural diverse measurements
  152.53           .. (2 indent ) With recorder
  152.54           . (1 indent ) Downhole test
  152.55           .. (2 indent ) Fluid test
  152.56           .. (2 indent ) Free point or stuck point
  152.57           .. (2 indent ) Casing or cementing
  152.58           .. (2 indent ) Using vibration
  152.59           .. (2 indent ) By measurement of response due to force
  152.61           . (1 indent ) Pump test
  152.62           .. (2 indent ) With recorder
  156           STATISTICAL RECORD VERIFYING
  157           RECORD STRIP SPROCKET HOLE TESTING
  158           HOISTING CABLE AND ROPE
  159           SHEET, WOVEN FABRIC OR FIBER
  160           . (1 indent ) 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           . (1 indent ) Rate of climb (pressure type)
  180           . (1 indent ) Leeway incidence or side-slip
  181           . (1 indent ) Ship's log
  182           .. (2 indent ) Pressure differential type
  183           ... (3 indent ) With integrating means
  184           .. (2 indent ) Drag type
  185           ... (3 indent ) Rotary
  186           .. (2 indent ) Vane type
  187           .. (2 indent ) Rotary
  178H           . (1 indent ) Helicopter
  178T           . (1 indent ) Take-off and landing monitors
  170.01           FLUID FLOW DIRECTION (E.G., WIND SOCK, WEATHER VANE, ETC.)
  170.02           . (1 indent ) Relative to aircraft or watercraft
  170.03           .. (2 indent ) Sailboat (e.g., sailing aid)
  170.04           . (1 indent ) Using a drifter or tracer (e.g., smoke)
  170.05           . (1 indent ) Using a fluid actuated alignment device (e.g., wind sock, weather vane, etc.)
  170.06           .. (2 indent ) With illumination means or an electro-optical indicator (e.g., beacon or signal lamp)
  170.07           .. (2 indent ) With velocity determination
  170.08           ... (3 indent ) Electric sensor
  170.09           .. (2 indent ) Electric sensor
  170.11           . (1 indent ) With velocity determination
  170.12           .. (2 indent ) Thermal
  170.13           .. (2 indent ) Acoustic
  170.14           .. (2 indent ) Fluid pressure differential
  170.15           .. (2 indent ) Thrust or drag force
  170.16           METEOROLOGY
  170.17           . (1 indent ) Precipitation (e.g., rain gauge)
  170.18           .. (2 indent ) With recorder detail
  170.19           .. (2 indent ) With heater or vaporizer
  170.21           .. (2 indent ) Sensing accumulated amount (e.g, rain gauge)
  170.22           ... (3 indent ) Using a float
  170.23           ... (3 indent ) Weight actuated (e.g., tipping bucket)
  170.24           . (1 indent ) Electric disturbance (e.g., lightning)
  170.25           . (1 indent ) Micrometeorite
  170.26           . (1 indent ) Icing condition (e.g., accretion)
  170.27           . (1 indent ) Naturally occurring radiation (e.g., solar radiation)
  170.28           . (1 indent ) Using unmanned, self-controlled airborne instrumentation carrier (e.g., radiosonde)
  170.29           OCEANOLOGY (E.G., OCEANS, RIVERS, OR LAKES)
  170.31           . (1 indent ) Surface wave
  170.32           . (1 indent ) Bottom sediment or soil
  170.33           . (1 indent ) Towed probe
  170.34           . (1 indent ) Unattached, self-contained probe with buoyancy controlled level of descent
  861           VOLUME OR RATE OF FLOW
  861.01           . (1 indent ) With indirect temperature or density compensation
  861.02           .. (2 indent ) Electrical
  861.03           ... (3 indent ) Digital
  861.04           . (1 indent ) Of selected fluid mixture component
  861.05           . (1 indent ) By measuring transit time of tracer or tag
  861.06           .. (2 indent ) With autocorrelation or cross-correlation detection
  861.95           .. (2 indent ) Thermal tracer or tag
  861.07           . (1 indent ) By measuring tracer concentration
  861.08           . (1 indent ) By measuring electrical or magnetic properties
  861.09           .. (2 indent ) Ionization type
  861.11           .. (2 indent ) Electromagnetic induction (e.g., Faraday type)
  861.12           ... (3 indent ) With detecting electrodes
  861.13           .... (4 indent ) Including permanent magnet or D.C. field
  861.14           .... (4 indent ) For dielectric fluids
  861.15           .... (4 indent ) Plural pairs of detecting electrodes
  861.16           .... (4 indent ) Including electrically interconnected or synchronized input and output circuit
  861.17           .... (5 indent ) Selective or periodic sampling
  861.18           . (1 indent ) By measuring vibrations or acoustic energy
  861.19           .. (2 indent ) Produced by fluidic oscillator
  861.21           .. (2 indent ) Caused by fluid interaction with obstacle
  861.22           ... (3 indent ) Vortex shedders
  861.23           .... (4 indent ) Acoustic
  861.24           .... (4 indent ) Movable sensor responsive to vortices
  861.25           .. (2 indent ) Reflection or scattering of acoustic waves
  861.26           .. (2 indent ) Deflection of acoustic waves
  861.27           .. (2 indent ) Transit time of acoustic waves
  861.28           ... (3 indent ) Transmitted along single path
  861.29           .... (4 indent ) In both directions simultaneously
  861.31           ... (3 indent ) Transmitted along parallel paths
  861.32           . (1 indent ) By measuring swirl rate imparted by static means
  861.33           .. (2 indent ) With turbine in a swirl chamber
  861.34           .. (2 indent ) Precess type
  861.351           . (1 indent ) Mass flow by imparting angular or transverse momentum to the fluid
  861.352           .. (2 indent ) Rotated resiliently coupled elements
  861.353           .. (2 indent ) Reaction turbine or vane
  861.354           .. (2 indent ) Coriolis or gyroscopic
  861.355           ... (3 indent ) Vibrated conduit
  861.356           .... (4 indent ) Signal processing or analysis details
  861.357           .... (4 indent ) Drive and sensor element located on straight conduit portion
  861.39           . (1 indent ) Using an applied fluid jet
  861.41           . (1 indent ) By counting drops, bubbles, or particles
  195           . (1 indent ) System
  196           .. (2 indent ) Flow comparing
  197           .. (2 indent ) Compound meter
  198           . (1 indent ) Combined
  199           .. (2 indent ) With pressure regulator or demand limit
  200           .. (2 indent ) With gas and liquid separator
  201           .. (2 indent ) With connection or box
  202           . (1 indent ) Proportional
  202.5           .. (2 indent ) Thermal sensing of flow
  203           .. (2 indent ) With valved proportioning means
  204.11           . (1 indent ) Thermal type
  204.12           .. (2 indent ) With conduit extending between heat sinks
  204.13           .. (2 indent ) With auxiliary fluid contacting or in heat exchange relation with flow path (e.g., thermodilution)
  204.14           .. (2 indent ) Including digital or pulse measuring circuitry
  204.15           .. (2 indent ) Including detail of feedback or rebalancing circuitry
  204.16           ... (3 indent ) By control of a separate heating or cooling element
  204.17           .. (2 indent ) With distinct heating circuitry for a self-heated sensor
  204.18           .. (2 indent ) Including response characteristic or condition compensation
  204.19           ... (3 indent ) For temperature
  204.21           .. (2 indent ) With fluid flow deflector or restrictor (e.g., baffle, constriction)
  204.22           .. (2 indent ) With sensor housing
  204.23           .. (2 indent ) Having particular electrical heating, cooling, or thermal sensing element
  204.24           ... (3 indent ) Thermoelectric junction
  204.25           ... (3 indent ) Resistive element
  204.26           .... (4 indent ) With substrate carrier (e.g., thin film)
  204.27           .... (4 indent ) Wire type (e.g., hot wire)
  861.42           . (1 indent ) Using differential pressure
  861.43           .. (2 indent ) With time integration
  861.44           ... (3 indent ) By electrical means
  861.45           ... (3 indent ) By mechanical means
  861.46           .... (4 indent ) Including pressure applied to liquid column or reservoir
  861.47           .. (2 indent ) Pressure applied to movable member (e.g., a diaphragm)
  861.48           ... (3 indent ) With linearization (e.g., square root extraction)
  861.49           .. (2 indent ) Pressure applied to liquid column or reservoir
  861.51           ... (3 indent ) With linearization
  861.52           .. (2 indent ) With restriction
  861.53           ... (3 indent ) Automatically variable restriction
  861.54           .... (4 indent ) Slotted piston or cylinder
  861.55           .... (4 indent ) Cone and ball or disk
  861.56           .... (5 indent ) With structure of coupling to indicator
  861.57           .... (5 indent ) With structure of float, float tube, or float guide
  861.58           .... (4 indent ) Orifice and tapered plug
  861.59           ... (3 indent ) Including recirculation pump
  861.61           ... (3 indent ) Orifice or flow nozzle
  861.62           .... (4 indent ) Adjustable
  861.63           ... (3 indent ) Venturi
  861.64           .... (4 indent ) Inlet or outlet structure
  861.65           .. (2 indent ) Pitot
  861.66           ... (3 indent ) Sensing at plural transverse locations
  861.67           ... (3 indent ) Adjustable
  861.68           ... (3 indent ) With heating element
  861.69           .. (2 indent ) Centrifugal
  215           . (1 indent ) Weir type
  216           .. (2 indent ) Submerged orifice or discharge nozzle
             . (1 indent ) Tank type
  217           .. (2 indent ) Rotary tank or bucket
  218           ... (3 indent ) With power drive
  219           .. (2 indent ) Plural measuring chamber
  220           ... (3 indent ) With fluid-pressure operated valve
  221           ... (3 indent ) With float operated valve
  222           ... (3 indent ) With siphon discharge
  223           .. (2 indent ) Single measuring chamber
  224           ... (3 indent ) With float operated valve
  225           .... (4 indent ) With trip gear
  226           ... (3 indent ) With siphon discharge
  227           . (1 indent ) Area-velocity integrating
  861.71           . (1 indent ) By measuring thrust or drag forces
  861.72           .. (2 indent ) By changing fluid direction
  861.73           .. (2 indent ) Impact of particulate material
  861.74           .. (2 indent ) On a vane
  861.75           ... (3 indent ) With rotation about a fixed axis
  861.76           .... (4 indent ) Spring biased
  861.77           . (1 indent ) Using rotating member with particular electrical output or circuit
  861.78           .. (2 indent ) With pick-up coil
  861.79           . (1 indent ) Using turbine
  861.81           .. (2 indent ) With response modification
  861.82           ... (3 indent ) Pressure responsive valve or restriction
  861.83           ... (3 indent ) Axial supply and delivery
  861.84           .... (4 indent ) Differentially responsive turbines
  861.85           .. (2 indent ) Anemometers
  861.86           .. (2 indent ) With fluid directed radially outward
  861.87           .. (2 indent ) With flow direction retained in a plane perpendicular to turbine axis
  861.88           ... (3 indent ) Mechanical coupling to indicator
  861.89           .. (2 indent ) Axial supply and delivery
  861.91           ... (3 indent ) With structure to reduce friction or wear
  861.92           ... (3 indent ) With structure of bearing or turbine support structure
  861.93           ... (3 indent ) With mechanical coupling to indicator
  861.94           ... (3 indent ) With magnetic coupling drive assembly
  232           . (1 indent ) Expansible chamber
  233           .. (2 indent ) With variable indicator drive
  234           .. (2 indent ) Wet type (e.g., liquid seal)
  235           ... (3 indent ) Rotary drum
  236           ... (3 indent ) Oscillating bell or drum
  237           ... (3 indent ) Reciprocating bell
  238           ... (3 indent ) Nutating bell
  239           .. (2 indent ) Reciprocating piston or cylinder
  240           ... (3 indent ) Transversely reciprocating piston and cylinder
  241           ... (3 indent ) Oscillating cylinder
  242           ... (3 indent ) Valveless
  243           ... (3 indent ) Duplex
  244           .... (4 indent ) Wobble plate or cam
  245           .... (4 indent ) With transverse shaft
  246           .... (5 indent ) With single distributing valve
  247           ... (3 indent ) Radial cylinder
  248           ... (3 indent ) Valved piston
  249           ... (3 indent ) With fluid actuated valve
  250           ... (3 indent ) With piston or rod actuated valve gear
  251           .... (4 indent ) With trip gear
  252           .. (2 indent ) Oscillating piston
  253           .. (2 indent ) Rotary piston or cylinder
  254           ... (3 indent ) With compensating bypass
  255           ... (3 indent ) With orbital movement
  256           .... (4 indent ) Plural stationary abutment
  257           .... (4 indent ) Single stationary abutment
  258           .... (5 indent ) Nutating piston
  259           ... (3 indent ) With sliding vane
  260           ... (3 indent ) With swinging vane
  261           ... (3 indent ) With interengaging pistons
  262           .. (2 indent ) Diaphragm or collapsible wall
  263           ... (3 indent ) Multiple diaphragm
  264           .... (4 indent ) Duplex
  265           .... (4 indent ) With rotary valve
  266           .... (5 indent ) Crank operated
  267           ..... (6 indent ) With flag rod
  268           .... (4 indent ) With oscillating or reciprocating valve
  269           ... (3 indent ) Single diaphragm
  270           .... (4 indent ) With diaphragm actuated valve trip gear
  271           .... (4 indent ) With fluid actuated valve
  272R           . (1 indent ) Element
  273           .. (2 indent ) Casing
  274           ... (3 indent ) Diaphragm meter type
  275           .. (2 indent ) Antireversing mechanism
  276           ... (3 indent ) Check valve
  277           .. (2 indent ) "Frostproof" construction
  278           .. (2 indent ) Diaphragm mounting
  279           .. (2 indent ) Diaphragm
  280           ... (3 indent ) With oiling structure
  281           .. (2 indent ) Tangent adjustment
  272A           .. (2 indent ) With remote register
  290R           LIQUID LEVEL OR DEPTH GAUGE
  291           . (1 indent ) With other measuring device
  292           .. (2 indent ) Thermometer
  293           . (1 indent ) With illumination
  294           . (1 indent ) With funnel or hose nozzle
  295           . (1 indent ) Thermal type
  296           . (1 indent ) Weighing type
  297           . (1 indent ) Test cock type
  298           . (1 indent ) Exploring tube
  299           . (1 indent ) Hydrostatic pressure type
  300           .. (2 indent ) Bathometer type
  301           .. (2 indent ) With electrically controlled indicator
  302           .. (2 indent ) With fluid displacement or replenishment
  303           ... (3 indent ) Suction type or vacuum tank action
  304R           . (1 indent ) Immersible electrode type
  304C           .. (2 indent ) Capacitative
  305           . (1 indent ) Float
  306           .. (2 indent ) Combined
  307           ... (3 indent ) With warning signal or alarm
  308           .... (4 indent ) Electric
  309           .. (2 indent ) Buoyancy type
  310           .. (2 indent ) Total registering
  311           .. (2 indent ) Multiple floats
  312           .. (2 indent ) Recording
  313           .. (2 indent ) With electrically controlled indicator
  314           .. (2 indent ) With position sensing
  315           .. (2 indent ) With float lock
  316           .. (2 indent ) With fluid transmission
  317           .. (2 indent ) Pivoted float arm
  318           ... (3 indent ) With flexible cable transmission
  319           .. (2 indent ) Vertically reciprocable
  320           ... (3 indent ) With spiral cam or guide
  321           ... (3 indent ) With flexible cable transmission
  322           ... (3 indent ) Indicator stem attached
  322.5           .. (2 indent ) Float structure
  323           . (1 indent ) Sight glass
  324           .. (2 indent ) With cleaner
  325           .. (2 indent ) With guard or casing
  326           ... (3 indent ) Boiler type
  327           .. (2 indent ) Reflector or magnifier
  328           .. (2 indent ) Boiler type
  329           ... (3 indent ) Duplex or multiple section
  330           ... (3 indent ) Transparent closure plate type
  331           .... (4 indent ) Bull's eye type
  332           ... (3 indent ) With valve
  333           .... (4 indent ) Safety feature
  334           .. (2 indent ) Transparent closure plate type
  290B           . (1 indent ) Ullage volume
  290V           . (1 indent ) Vibratory type
  379.01           MUSCULAR FORCE (E.G., STRENGTH TESTING, EXERCISING OR TRAINING EFFORT, ETC.)
  379.02           . (1 indent ) Jaw or hand (e.g., gripping, pinching, or biting)
  379.03           .. (2 indent ) Using a resilient force-resister
  379.04           . (1 indent ) Impact
  379.05           .. (2 indent ) Using a resilient force-resister
  379.06           . (1 indent ) Including a rotary element with a braking means (e.g., friction brake)
  379.07           .. (2 indent ) Pedal driven (e.g., cycle ergometer)
  379.08           . (1 indent ) Using a resilient force-resister
  379.09           . (1 indent ) Using hydraulic or pneumatic force-resister
  382R           GRAVITATIONAL DETERMINATION
  383           . (1 indent ) Torsion balance
  382G           . (1 indent ) Gravitational variation
  488           SPEED, VELOCITY, OR ACCELERATION
  489           . (1 indent ) Recording or registering interrelated factors
  490           . (1 indent ) With distance registering means
  491           . (1 indent ) With means for retaining reading
  492           .. (2 indent ) Maximum acceleration
  493           . (1 indent ) Structural installation or mounting means
  494           .. (2 indent ) Installed in rotary speed source
  495           . (1 indent ) Indicating diverse conditions
  496           . (1 indent ) Vibration control or antistick means for reading structure
  497           . (1 indent ) Temperature compensator
  498           . (1 indent ) Adjusting means for reading structure
  499           . (1 indent ) Illuminated reading device
  500           . (1 indent ) Liquid surface is or moves reading means
  501           .. (2 indent ) Surface of revolving liquid body
  502           . (1 indent ) Externally connected pressure gauge gives reading
  503           . (1 indent ) Means integrating time and acceleration
  503.3           .. (2 indent ) Gyroscope
  504.01           . (1 indent ) Angular rate using wave or beam motion (e.g., Sagnac type)
  504.02           . (1 indent ) Angular rate using gyroscopic or Coriolis effect
  504.03           .. (2 indent ) Multisensor for both angular rate and linear acceleration
  504.04           ... (3 indent ) Vibratory mass
  504.05           .. (2 indent ) Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
  504.06           ... (3 indent ) Fluid jet
  504.07           ... (3 indent ) Rotary
  504.08           .. (2 indent ) Rotary gyroscope
  504.09           ... (3 indent ) Gimbal support
  504.11           ... (3 indent ) Flexible rotor or flexibly mounted rotor
  504.12           .. (2 indent ) Vibratory mass
  504.13           ... (3 indent ) Hollow circular-shaped inertial element
  504.14           ... (3 indent ) Elongated element with spaced supports
  504.15           ... (3 indent ) Cantilever
  504.16           .... (4 indent ) Tuning fork
  504.17           . (1 indent ) Angular rate using a fluid vortex rate sensor
  504.18           . (1 indent ) With rotary gyroscope
  506           . (1 indent ) Means integrating intermittent speed source impulses
  507           . (1 indent ) Comparison to a fixed standard, master or reference speed device
  508           . (1 indent ) With governor drive failure responsive means
  509           . (1 indent ) With response to a nonspeed condition
  510           . (1 indent ) Response to multiple sensing means or motion conditions
  511           .. (2 indent ) Response to both velocity and acceleration
  512           ... (3 indent ) Centrifugal-type velocity sensor and separate inertial means
  513           . (1 indent ) With manual control
  514.01           . (1 indent ) Acceleration determination utilizing inertial element
  514.02           .. (2 indent ) Angular acceleration
  514.03           ... (3 indent ) Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
  514.04           ... (3 indent ) Inertial flywheel
  514.05           .. (2 indent ) Fluid or fluent material
  514.06           ... (3 indent ) Fluid or fluent material support of an inertial element
  514.07           .... (4 indent ) Gas
  514.08           .... (4 indent ) Magnetic fluid
  514.09           ... (3 indent ) Fluid or fluent inertial mass
  514.11           ... (3 indent ) Detection by fluid pressure
  514.12           ... (3 indent ) Fluid or fluent material dampening of an inertial element
  514.13           .... (4 indent ) Gas
  514.14           .. (2 indent ) Specific type of dampener (e.g., eddy current dampener)
  514.15           .. (2 indent ) Spinning or vibrating accelerometer
  514.16           .. (2 indent ) Specific type of electric sensor or specific type of magnetic sensor
  514.17           ... (3 indent ) Rebalance
  514.18           .... (4 indent ) Electrostatic restoring means
  514.19           .... (4 indent ) Radiant energy sensor (e.g., optical, charged, or radioactive particle)
  514.21           .... (4 indent ) Pendulum or beam
  514.22           .... (5 indent ) Including a bearing support
  514.23           .... (5 indent ) Including a flexure support
  514.24           .... (4 indent ) Including an elastic support for an inertial element (e.g., spring)
  514.25           ... (3 indent ) Charged particle or radioactive particle sensor
  514.26           ... (3 indent ) Optical sensor
  514.27           .... (4 indent ) Frequency or phase shift
  514.28           ... (3 indent ) Surface acoustical wave
  514.29           ... (3 indent ) Having a vibrating element
  514.31           ... (3 indent ) Inductive or magnetic sensor (e.g., Hall effect sensor)
  514.32           ... (3 indent ) Capacitive sensor
  514.33           ... (3 indent ) Resistive sensor
  514.34           ... (3 indent ) Piezoelectric sensor
  514.35           .. (2 indent ) Electric
  514.36           .. (2 indent ) Pendulum or beam
  514.37           ... (3 indent ) Including a pivot support
  514.38           .. (2 indent ) Including an elastic support for an inertial element (e.g., spring)
  514.39           . (1 indent ) Magnetic speed measuring or mechanical speed measuring with ancillary magnetic means or with ancillary electrical means
  519.01           .. (2 indent ) Eddy current drag means (e.g., drag cup)
  520.01           ... (3 indent ) With a flux adjusting means
  521           . (1 indent ) Fluid
  522           .. (2 indent ) Dampening means
  523           .. (2 indent ) Expansible chamber devices
  524           .. (2 indent ) Fluid coupling or torque convertor type
  525           .. (2 indent ) Brake (e.g., vanes in air)
  526           . (1 indent ) With dampening or shock-absorbing means
  527           . (1 indent ) With input means
  528           .. (2 indent ) Selective speed transmitter
  529           .. (2 indent ) Frictional (e.g., friction wheels)
  530           . (1 indent ) With output transmitting mechanism
  531           .. (2 indent ) With transmission adjustment means
  532           .. (2 indent ) Gear
  533           ... (3 indent ) Rectilinear rack
  534           .. (2 indent ) Surface and follower
  535           . (1 indent ) Centrifugal weight type
  536           .. (2 indent ) Weight lever arm or pivot automatically variable during operation
  537           .. (2 indent ) Bias automatically variable during operation
  538           ... (3 indent ) Snap action
  539           .. (2 indent ) Limit stop for weight
  540           .. (2 indent ) With adjusting means
  541           ... (3 indent ) Diverse
  542           ... (3 indent ) Biasing weight
  543           ... (3 indent ) Lever or gear adjustor
  544           ... (3 indent ) Adjusting screw means and bias spring concentric to centrifugal axis
  545           ... (3 indent ) Spring and adjustor connect paired weights
  546           .. (2 indent ) Leaf spring biasing means
  547           .. (2 indent ) Toggle joint mounted
  548           .. (2 indent ) Radially projecting striker type
  549           .. (2 indent ) Rigid mass crossing axis at an acute angle
  550           .. (2 indent ) Weighted bell crank lever type
  551           .. (2 indent ) Surface and follower (e.g., cam or weight as wedge)
  384           BAROMETER (E.G., ALTIMETER)
  385           . (1 indent ) Mercury
  386           . (1 indent ) Aneroid
  387           .. (2 indent ) Settable
  700           FLUID PRESSURE GAUGE
  701           . (1 indent ) Null balance type
  702           . (1 indent ) Vibration type
  703           .. (2 indent ) Ultrasonic
  704           .. (2 indent ) Vibrating strip or wire
  705           . (1 indent ) Photoelectric
  706           . (1 indent ) With protective separator
  707           . (1 indent ) With fluid pulsation dampener
  708           . (1 indent ) With pressure and/or temperature compensation
  709           . (1 indent ) With excess or maximum registering
  710           . (1 indent ) With steam trap
  711           . (1 indent ) With variable drive
  712           . (1 indent ) With recorder
  713           . (1 indent ) With float
  714           . (1 indent ) Combined
  715           . (1 indent ) Diaphragm
  716           .. (2 indent ) Multiple and/or differential
  717           ... (3 indent ) With electrical readout
  718           .... (4 indent ) Capacitive
  719           .... (4 indent ) Resistive
  720           .... (5 indent ) Strain gauge
  721           ..... (6 indent ) Piezoresistive
  722           .... (4 indent ) Electromagnetic
  723           .. (2 indent ) With electrical readout
  724           ... (3 indent ) Capacitive
  725           ... (3 indent ) Resistive
  726           .... (4 indent ) Strain gauge
  727           .... (5 indent ) Piezoresistive
  728           ... (3 indent ) Electromagnetic
  729.1           .. (2 indent ) Bellows
  729.2           .. (2 indent ) Capsule
  730           .. (2 indent ) Expansible conduit
  731           .. (2 indent ) Sack
  732           . (1 indent ) Bourdon
  733           .. (2 indent ) With electrical readout
  734           ... (3 indent ) Resistive
  735           ... (3 indent ) Electromagnetic
  736           .. (2 indent ) Multiple and/or differential
  737           .. (2 indent ) Intermediately supported
  738           .. (2 indent ) Safety pressure release casing
  739           .. (2 indent ) With mechanism dampening
  740           .. (2 indent ) With zeroizing adjustment
  741           .. (2 indent ) Bourdon tube and mounting
  742           ... (3 indent ) Helical Bourdon tube
  743           ... (3 indent ) Spiral Bourdon tube
  744           . (1 indent ) Piston
  745           .. (2 indent ) With electrical readout
  746           ... (3 indent ) Resistive
  747           . (1 indent ) U-tube liquid column
  748           .. (2 indent ) Sphygmomanometer
  749           .. (2 indent ) With electrical readout
  750           ... (3 indent ) Resistive
  751           . (1 indent ) Balance
  752           . (1 indent ) McLeod type
  753           . (1 indent ) Electrical
  754           .. (2 indent ) Semiconductor
  755           .. (2 indent ) Pirani type
  756           . (1 indent ) Mounting and connection
  863           SAMPLER, SAMPLE HANDLING, ETC.
  863.01           . (1 indent ) Automatic control
  863.02           .. (2 indent ) Quantity or rate of flow responsive
  863.03           ... (3 indent ) Rate of sample flow continuously controlled
  863.11           . (1 indent ) With heating or cooling
  863.12           .. (2 indent ) And separation
  863.21           . (1 indent ) With constituent separation
  863.22           .. (2 indent ) Particle impact
  863.23           .. (2 indent ) Sieve, filter, or semipermeable membrane
  863.24           ... (3 indent ) Cleaning
  863.25           ... (3 indent ) Changing feature
  863.31           . (1 indent ) Plural parallel systems
  863.32           .. (2 indent ) Pipette
  863.33           .. (2 indent ) Plural capture, single receiver
  863.41           . (1 indent ) Flow divider, deflector, or interceptor
  863.42           .. (2 indent ) Attached to mouth of dumpable receptacle
  863.43           .. (2 indent ) Having precapture flow guide or homogenizer
  863.44           ... (3 indent ) Oscillating or reciprocating
  863.45           ... (3 indent ) Rotary
  863.51           .. (2 indent ) Having an upstream-facing-opening-type capture element
  863.52           ... (3 indent ) With receptacle
  863.53           .... (4 indent ) Mounted for flow zone traverse
  863.54           ... (3 indent ) Mounted for reciprocation
  863.55           ... (3 indent ) Oscillating
  863.56           ... (3 indent ) Rotary
  863.57           ... (3 indent ) With blocking means
  863.58           ... (3 indent ) Pitot tube type
  863.61           .. (2 indent ) Branched conduit
  863.71           . (1 indent ) Conduit or passageway section capture chamber
  863.72           .. (2 indent ) Single valve unit
  863.73           ... (3 indent ) Capture chamber within valve unit
  863.81           . (1 indent ) Withdrawing through conduit or receptacle wall
  863.82           .. (2 indent ) Capture element movable to plural loci
  863.83           .. (2 indent ) With metering means or pump
  863.84           ... (3 indent ) Expansible chamber
  863.85           .. (2 indent ) Lock or seal for sampler insertion or removal
  863.86           .. (2 indent ) Valve or restriction
  863.91           . (1 indent ) Conveyor coacting
  863.92           .. (2 indent ) Integral with conveyor structure
  864           . (1 indent ) Capture device
  864.01           .. (2 indent ) Pipette or cannula
  864.02           ... (3 indent ) Self-filling of self-limiting
  864.03           ... (3 indent ) With user mouth protection
  864.11           ... (3 indent ) With suction applying and liquid discharge means
  864.12           .... (4 indent ) With separate diluent supply
  864.13           .... (4 indent ) Piston within pipette
  864.14           .... (4 indent ) With particular connection or release means
  864.15           .... (4 indent ) With valve for connection to external pressure source
  864.16           .... (4 indent ) Piston and cylinder
  864.17           .... (5 indent ) Plural
  864.18           .... (5 indent ) Plural or adjustable limit stops
  864.21           ... (3 indent ) With sample supply to analyzer
  864.22           ... (3 indent ) With pipette contacting second fluid supply
  864.23           ... (3 indent ) Pipette fixed; source movable
  864.24           ... (3 indent ) Pipette longitudinally movable
  864.25           .... (4 indent ) And transversely movable
  864.31           .. (2 indent ) With capture device transporter
  864.32           ... (3 indent ) Cyclically operated scoop
  864.33           .. (2 indent ) Capture by fluid current
  864.34           .. (2 indent ) Sample meter or pump
  864.35           ... (3 indent ) Chamber with alternate pressure or vacuum applier
  864.41           .. (2 indent ) Cutter, tearer, or scraper
  864.42           ... (3 indent ) Jaw
  864.43           ... (3 indent ) Auger or drill
  864.44           ... (3 indent ) Corer
  864.45           .... (4 indent ) With corer advancing means
  864.51           .. (2 indent ) Receptacle type
  864.52           ... (3 indent ) Preevacuated
  864.53           ... (3 indent ) Mold
  864.54           .... (4 indent ) With suction applier
  864.55           .... (4 indent ) With diminutive fill passageway
  864.56           .... (5 indent ) Mating sections
  864.57           ..... (6 indent ) Labyrinth
  864.58           .... (4 indent ) With sample conditioner
  864.59           .... (4 indent ) With holder or connector
  864.61           ... (3 indent ) Fluid displacement
  864.62           ... (3 indent ) Expansible chamber
  864.63           ... (3 indent ) With valve or closure
  864.64           .... (4 indent ) Side opening
  864.65           .... (4 indent ) Contact actuated
  864.66           .... (4 indent ) Support force or inertia actuated
  864.67           .... (4 indent ) Messenger actuated
  864.71           .. (2 indent ) Material for particulate adhesion
  864.72           .. (2 indent ) Capillary attraction retention
  864.73           .. (2 indent ) Conduit
  864.74           ... (3 indent ) With penetrating means
  864.81           . (1 indent ) Analyzer supplier
  864.82           .. (2 indent ) Having sample capsule support
  864.83           .. (2 indent ) Having sample confining chamber
  864.84           ... (3 indent ) Connector for separable holder
  864.85           .. (2 indent ) Connector for separable holder
  864.86           ... (3 indent ) Septum structure
  864.87           ... (3 indent ) Syringe with connector
  864.91           . (1 indent ) Sample holder
  426           MEASURING VESSEL
  427           . (1 indent ) With depth indication
  428           .. (2 indent ) Removable indicator
  429           . (1 indent ) Capacity adjustable
  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
  866.2           . (1 indent ) Rate of change
  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           . (1 indent ) Drill depth-rate (73/151.5)
  FOR102           . (1 indent ) Formation logging (73/152)
  FOR103           .. (2 indent ) By drill mud or core analyst (73/153)
  FOR104           .. (2 indent ) Thermal (73/154)
  FOR105           . (1 indent ) Fluid intrusion, theft of flow study (73/155)
  FOR106           POWER PLANT OR UNIT EFFICIENCY (73/112)
  FOR107           . (1 indent ) Automobile fuel consumption (73/113)
  FOR108           .. (2 indent ) Miles per gallon (73/114)
  FOR109           . (1 indent ) Pressure derivative (73/115)
  FOR110           MOTOR AND ENGINE TESTING (73/116)
  FOR111           . (1 indent ) With vehicle supporting roller or belt (73/117)
  FOR112           . (1 indent ) Utilizing a test chamber or tank to simulate operating conditions (73/117.1)
  FOR113           . (1 indent ) Disparate tests under operating conditions (73/117.2)
  FOR114           .. (2 indent ) With continuous operation (73/117.3)
  FOR115           . (1 indent ) Thrust measurement (e.g., jet engine) (73/117.4)
  FOR116           . (1 indent ) Testing auxiliary unit (73/118.1)
  FOR117           .. (2 indent ) Intake air flow (73/118.2)
  FOR118           . (1 indent ) Motor part (73/119)
  FOR119           .. (2 indent ) Piston Ring (73/120)
 
 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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