US PATENT SUBCLASS 73 / 488
SPEED, VELOCITY, OR ACCELERATION

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

488SPEED, VELOCITY, OR ACCELERATION {29}
489  DF  .~> Recording or registering interrelated factors
490  DF  .~> With distance registering means
491  DF  .~> With means for retaining reading {1}
493  DF  .~> Structural installation or mounting means {1}
495  DF  .~> Indicating diverse conditions
496  DF  .~> Vibration control or antistick means for reading structure
497  DF  .~> Temperature compensator
498  DF  .~> Adjusting means for reading structure
499  DF  .~> Illuminated reading device
500  DF  .~> Liquid surface is or moves reading means {1}
502  DF  .~> Externally connected pressure gauge gives reading
503  DF  .~> Means integrating time and acceleration {1}
504.01  DF  .~> Angular rate using wave or beam motion (e.g., Sagnac type)
504.02  DF  .~> Angular rate using gyroscopic or Coriolis effect {4}
504.17  DF  .~> Angular rate using a fluid vortex rate sensor
504.18  DF  .~> With rotary gyroscope
506  DF  .~> Means integrating intermittent speed source impulses
507  DF  .~> Comparison to a fixed standard, master or reference speed device
508  DF  .~> With governor drive failure responsive means
509  DF  .~> With response to a nonspeed condition
510  DF  .~> Response to multiple sensing means or motion conditions {1}
513  DF  .~> With manual control
514.01  DF  .~> Acceleration determination utilizing inertial element {8}
514.39  DF  .~> Magnetic speed measuring or mechanical speed measuring with ancillary magnetic means or with ancillary electrical means {1}
521  DF  .~> Fluid {4}
526  DF  .~> With dampening or shock-absorbing means
527  DF  .~> With input means {2}
530  DF  .~> With output transmitting mechanism {3}
535  DF  .~> Centrifugal weight type {10}

DEFINITION

Classification: 73/488

(under the class definition) Subject matter comprising a process or an apparatus for detecting or determining either (a) a time rate of change of position of a body (speed or velocity) or (b) a change in the time rate of change of speed or velocity of a body (acceleration).

(1) Note. A process or an apparatus for determining or measuring direction of motion not elsewhere classified is found here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.37+, for proving or calibrating a device which determines speed, velocity, or acceleration.

121+, for vehicle brake testing.

167+, for testing of a projectile. 178+, for a navigational instrument.

652+, for apparatus for sensing vibrations by an inertial element.

861+, for means measuring rate of flow of a fluid.

SEE OR SEARCH CLASS

33, Geometrical Instruments,

231, and 232, for straight-line-light ray sighting instruments involving speed; subclasses 300+, for direction sensing and indicating instruments which may involve speed, particularly subclasses 318+ wherein a gyroscope is utilized for controlling or stabilizing purposes; and subclasses 391+ for pendulums which may respond to and be calibrated in terms of acceleration.

74, Machine Element or Mechanism,

3, for a speed controlled trip.

91, Motors: Expansible Chamber Type,

435, and see the search there noted for expansible chamber motors involving speed control.

116, Signals and Indicators,

37, for an indicator of vehicle speed and direction; subclass 57 for a vehicle speed limit indicator; subclass 74 for a speed limit alarm; and subclasses 200+ for a speed limit indicator. 123, Internal-Combustion Engines,

319+, for a speed regulator particularly associated with an internal combustion engine, and subclasses 364+ and 441 for a governor controlled charge forming device.

137, Fluid Handling,

38+, for flow control by response to inertia of the system; and subclasses 47+ for a speed responsive valve.

164, Metal Founding,

151.1, and 154.3 for an apparatus to cast metal in combination with a speed sensor.

180, Motor Vehicles,

170+, for a motor vehicle having means which is responsive to its speed for regulating the vehicle's rate of travel.

188, Brakes,

180+, for a speed responsive brake.

192, Clutches and Power-Stop Control, .02, for automatic control of a motor and clutch by speed, and subclass 103 for a speed responsive clutch.

200, Electricity: Circuit Makers and Breakers,

61.45+, for an inertia or tilt switch and subclass 80 for a centrifugal switch.

246, Railway Switches and Signals,

182, for a railway speed control system.

254, Implements or Apparatus for Applying Pushing or Pulling force,

267, for a speed control particularly associated with a drum of a cable hoist.

303, Fluid-Pressure and Analogous Brake Systems,

121+, for speed responsive means particularly associated with a fluid-pressure brake system.

318, Electricity: Motive Power Systems,

66+, for running speed control of plural electric motors; subclasses 90+ for acceleration control of plural motors; subclasses 255+ for diverse motor controls including speed control; and subclasses 461+ for speed control and/or starting or stopping.

322, Electricity: Single Generator Systems, 29+, for electric generator speed control means.

324, Electricity: Measuring and Testing,

160+, for electrical speed measuring.

340, Communications: Electrical,

670+, for an electrical signal or alarm responsive to speed.

356, Optics: Measuring and Testing,

27+, for velocity or velocity and height measuring devices, and subclass 29 for devices with a optical element or reticule which respond to the relative velocity of a remote object.

361, Electricity: Electrical Systems and Devices,

236+, for an electrical speed responsive system.

364, Electrical Computers and Data Processing Systems,

565, and 566, respectively, for determining speed and acceleration which involve a significant computation. 388, Electricity: Motor Control Systems,

800+, and 825+ for single motor running-speed control systems with, and without feedback, respectively.

417, Pumps,

293, for a speed responsive device particularly associated with a pump.

418, Rotary Expansible Chamber Devices,

40+, for speed controlled rotary expansible chamber devices.