US PATENT SUBCLASS 384 / 421
.~.~.~ For pivot of towed vehicle

Current as of: June, 1999
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384 /   HD   BEARINGS

91  DF  ROTARY BEARING {8}
129  DF  .~ Plain bearing {17}
420  DF  .~.~ Thrust bearing {5}
421.~.~.~ For pivot of towed vehicle

DEFINITION

Classification: 384/421

For pivoted or towed vehicle:

(under subclass 420) Subject matter wherein the pressure, or force is at the center about which a trailer turns when connected to a vehicle pulling it. e.g., fifth wheel for a wagon.

SEE OR SEARCH CLASS

105, Railway Rolling Stock,

189, for center plate bogies for railway trucks.

212, Traversing Hoist,

70, for pivots for rotary cranes.