US PATENT SUBCLASS 254 / 275
.~.~.~ Electricity utilized in transmittal or impulse

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

264  DF  APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4}
266  DF  .~ Device includes rotatably driven, cable contacting drum {34}
274  DF  .~.~ Having mechanism, linked to drum or rotating element of drive, for generating control impulse to rotation retarding means or motor when torque on drum varies {1}
275.~.~.~ Electricity utilized in transmittal or impulse

DEFINITION

Classification: 254/275

Electricity utilized in transmittal of impulse:

(under subclass 274) Apparatus in which an electric medium is utilized when force is transmitted from the mechanism to the retarding means or motor.