US PATENT SUBCLASS 414 / 797
.~.~.~.~ By suction

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

788  DF  APPARATUS FOR MOVING INTERSUPPORTING ARTICLES INTO, WITHIN, OR FROM FREESTANDING, ORDERLY LAYERED, OR MUTUALLY STABILIZING ORDERLY GROUP {4}
795.4  DF  .~ Unstacking apparatus {10}
796.5  DF  .~.~ Removes highest article first from stack {5}
796.9  DF  .~.~.~ Includes article gripping device {2}
797.~.~.~.~ By suction

DEFINITION

Classification: 414/797

By suction:

(under subclass 796.9) Apparatus wherein at least a portion of the holding force is derived by reducing the air pressure over a surface of the article below the ambient pressure on other surface of the article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

627, for a suction gripper mounted on an elevator or hoist.

737, for a suction or magnetic gripper mounted on a vertically swinging load support.

744.1, for a suction gripper mounted on a horizontally swinging load support.

752, for a suction gripper mounted for horizontal linear movement.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven, 689.1, for a conveyor of that class having load adhering or friction enhancing means of a suction type.

294, Handling: Hand and Hoist-Line Implements,

64.1+, for implements adapted to employ the use of a vacuum.

901, Robots,

40, for an end effector utilizing a vacuum.