US PATENT SUBCLASS 254 / 350
.~.~.~.~ Components having frictional contact surface

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.~.~.~.~ Components having frictional contact surface {1}
351  DF  .~.~.~.~.~> Truncated cone shaped

DEFINITION

Classification: 254/350

Components having frictional contact surface:

(under subclass 346) Apparatus in which the surface friction created by the contact of the rotatable components of the clutch mechanism is solely relied upon for the transmitting or rotary motion from the one component to the other.