US PATENT SUBCLASS 254 / 351
.~.~.~.~.~ Truncated cone shaped

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}
342  DF  .~.~ Drive includes intermeshing gears {7}
346  DF  .~.~.~ Drive also includes clutch mechanism having coaxial, rotatable relatively shiftable axially, power transmitting components {4}
350  DF  .~.~.~.~ Components having frictional contact surface {1}
351.~.~.~.~.~ Truncated cone shaped

DEFINITION

Classification: 254/351

Truncated cone shaped:

(under subclass 350) Apparatus wherein the portion of the surface of each of the rotatable components which contacts the other components has a generally truncated cone shaped.