US PATENT SUBCLASS 414 / 546
.~.~ Raising or lowering of load or load holder includes curvilinear 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}
546.~.~ Raising or lowering of load or load holder includes curvilinear movement {8}
547  DF  .~.~.~> Pivotable, telescopic arm imparts path of plural radii
548  DF  .~.~.~> Unloader actuated by gravity-influenced load
549  DF  .~.~.~> Carrier or mover includes means enabling additional movement of a rectilinear nature in a direction other than vertical
550  DF  .~.~.~> Carrier or mover includes means enabling additional movement about a vertical axis
551  DF  .~.~.~> Load holder located relative to vehicle in such manner as to accrue load during travel of vehicle {3}
555  DF  .~.~.~> With means to grasp load
556  DF  .~.~.~> Carrier comprises movable component of load-receiving portion {1}
558  DF  .~.~.~> Carrier movable to storage position beneath vehicle

DEFINITION

Classification: 414/546

Raising or lowering of load or load holder includes curvilinear movement:

(under subclass 539) Apparatus wherein the carrier or mover raises or lowers a load or load holder in a path which includes movement along a line which represents an arc of either fixed or varying curvature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

442+, for a load transporter having a load-handling (i.e., loading or unloading) means in the nature of a vertically swinging member, which means operates in response to movement of the transporter.

680+, for a load mover in the nature of a load-carrying member having means to swing it in a vertical plane.