US PATENT SUBCLASS 414 / 579
.~.~.~ With fluid or mechanical friction brake to regulate movement of structure

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

572  DF  LOAD-TRANSPORTING TYPE VEHICLE TO BE LOADED OR UNLOADED, OR EXTERNAL MEANS FOR THE LOADING OR UNLOADING, OR FOR COOPERATING THEREWITH, OF SUCH A VEHICLE {4}
575  DF  .~ Means comprises device for changing the attitude of a vehicle, or its load body, relative to the horizontal for unloading by gravity {3}
577  DF  .~.~ Pivotably movable structure for supporting a vehicle in toto, positioned, at least initially, in underlying relation thereto {4}
579.~.~.~ With fluid or mechanical friction brake to regulate movement of structure

DEFINITION

Classification: 414/579

With fluid or mechanical friction brake to regulate movement of structure:

(under subclass 577) Apparatus wherein the structure is provided with a brake of either a fluid type or a mechanical friction type for smoothing, slowing, or checking its pivotable movement.

(1) Note. In the event that the movement is induced by gravity, the brake is responsible also for starting the movement.

(2) Note. The checking may be of a repetitive nature (e.g.,., to induce a load to move from the vehicle).