US PATENT SUBCLASS 294 / 81.52
.~.~ Rotatable about vertical axis


Current as of: June, 1999
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294 /   HD   HANDLING: HAND AND HOIST-LINE IMPLEMENTS

81.1  DF  SPACING HOIST BAR OR FRAME {5}
81.5  DF  .~ Load supporting units {5}
81.52.~.~ Rotatable about vertical axis {1}
81.53  DF  .~.~.~> Twist lock


DEFINITION

Classification: 294/81.52

Rotatable about vertical axis:

(under subclass 81.5) Devices wherein least one of the components of the load engaging units rotates about a vertically disposed axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67.31, for hoistline frames having a single distinct load engaging unit, at least one component of which rotates about a vertically disposed axis to capture the load.