US PATENT SUBCLASS 254 / 299
.~.~.~.~.~ Also including clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components

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}
278  DF  .~.~ Plural drums or drum with plural distinct sections {7}
294  DF  .~.~.~ Having common drive source or mechanically interlinked drive trains {10}
295  DF  .~.~.~.~ Including intermeshing gears in drive {7}
299.~.~.~.~.~ Also including clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components {4}
300  DF  .~.~.~.~.~.~> With frictional brake assembly mechanically linked to, and operationally influenced by, clutch
301  DF  .~.~.~.~.~.~> With additional axially shiftable clutch mechanism mechanically linked to, and operationally influenced by, first clutch {1}
303  DF  .~.~.~.~.~.~> Fluid operated actuator shifts component
304  DF  .~.~.~.~.~.~> Components having frictional contact surface {1}

DEFINITION

Classification: 254/299

Also including clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components:

(under subclass 295) Apparatus wherein the interlinked drive trains also include a clutch mechanism having a rotatable component which is rotated about its axis by the power source, the component, in its entirety, being relatively shiftable along its axis of rotation either (a) into contact with another component of the clutch mechanism causing this component to rotate about the same axis and to transmit power to at least one of the drums or (b) out of contact with the other component, allowing that component to stop rotating and not transmit power.

SEE OR SEARCH CLASS

192, Clutches and Power-Stop Control,

66.1+, for a clutch having movable engaging elements which shift parallel to the axis of rotation of the elements.