US PATENT SUBCLASS 294 / 86.28
.~.~.~ Outwardly biased grappling means

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

86.4  DF  GRAPPLE {18}
86.1  DF  .~ Well type {10}
86.26  DF  .~.~ Contracting grappling means (e.g., overshot) {6}
86.28.~.~.~ Outwardly biased grappling means

DEFINITION

Classification: 294/86.28

(under subclass 86.26) Grapples having a grappling means that is normally biased to a position outwardly of the object engaged position and is moved to an engaged position through the action of some mechanical movement means of the grapple.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99.1+, for grapples of general utility having grappling members which are connected to spring arms which may normally position the grasping members outwardly of an object to be engaged.