US PATENT SUBCLASS 73 / 493
.~ Structural installation or mounting means


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

488  DF  SPEED, VELOCITY, OR ACCELERATION {29}
493.~ Structural installation or mounting means {1}
494  DF  .~.~> Installed in rotary speed source


DEFINITION

Classification: 73/493

(under subclass 488) Apparatus in which a speed responsive device is installed in, or has means mounting it on, an element of a disparate function device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

128, and 129, for means for attaching a brake testing device to a vehicle.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

435, and see the search there noted for expansible chamber motors with speed governors.

123, Internal-Combustion Engines, 319+, for a speed regulator installed on an internal combustion engine.

180, Motor Vehicles,

170+, as explained in the reference thereto appearing in subclass 488 above.

187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,

373+, for a speed controlled brake installed on an elevator.

248, Supports,

27.1+, for instrument mounting means of more general application.

388, Electricity: Motor Control Systems, art collections 923+ for specific speed responsive feedback devices used with electric motors.

416, Fluid Reaction Surfaces (i.e., Impellers),

44+, for control means responsive to the rotation speed of an impeller.

464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts, particularly 52+, for a flexible torque transmitting shaft and housing with means to couple said shaft and housing to an auxiliary housing.