US PATENT SUBCLASS 414 / 542
.~.~.~.~ Hoist having traversing (i.e., horizontal) movement

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

467  DF  SELF-LOADING OR UNLOADING VEHICLES {8}
539  DF  .~ Loading or unloading by other carrier or mover means, and the load movement thereof {3}
540  DF  .~.~ Raising or lowering of load or load holder includes vertical, rectilinear movement {2}
541  DF  .~.~.~ And carrier or mover includes means enabling additional movement having horizontal component {2}
542.~.~.~.~ Hoist having traversing (i.e., horizontal) movement {1}
543  DF  .~.~.~.~.~> Having boom pivotable about a vertical axis

DEFINITION

Classification: 414/542

Hoist having traversing (i.e., horizontal) movement:

(under subclass 541) Apparatus wherein the carrier or mover comprises a reelable (or otherwise retractable) cable type lifting device which is mounted, or constructed, in such a manner that it can impart movement in a horizontal direction, either by moving linearly or by pivoting about a vertical axis, to the load.