US PATENT SUBCLASS 414 / 517
.~.~.~ Pusher moved by ram actuated by fluid pressure

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

467  DF  SELF-LOADING OR UNLOADING VEHICLES {8}
507  DF  .~ Conveyor {12}
509  DF  .~.~ Comprising load-engaging element reciprocably movable parallel to generally horizontal load-supporting component of vehicle for ejecting load therefrom {6}
517.~.~.~ Pusher moved by ram actuated by fluid pressure

DEFINITION

Classification: 414/517

Pusher moved by ram actuated by fluid pressure:

(under subclass 509) Apparatus wherein the piston of a ram operated by fluid pressure is connected to a load-pushing follower, movement of said piston pulling or pushing the follower along said support means.