US PATENT SUBCLASS 254 / 273
.~.~.~.~ Electricity or fluid utilized in transmittal of impulse

Current as of: June, 1999
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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}
270  DF  .~.~ Having cable contacted, supported, or attached mechanism for generating control impulse to retarding means or drive {2}
272  DF  .~.~.~ With cable deflecting or path defining component shifted by cable when tension varies {1}
273.~.~.~.~ Electricity or fluid utilized in transmittal of impulse

DEFINITION

Classification: 254/273

Electricity or fluid utilized in transmittal of impulse:

(under subclass 272) Apparatus in which either an electric or a fluid medium is utilized when the force is transmitted from the mechanism to the retarding means or drive.