US PATENT SUBCLASS 269 / 33
.~.~.~ Including opposed cylinder-piston means


Current as of: June, 1999
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269 /   HD   WORK HOLDERS

20  DF  WITH FLUID MEANS {7}
27  DF  .~ Cylinder-piston means in series with additional positioning means {4}
32  DF  .~.~ Mechanical means between fluid means and jaw {2}
33.~.~.~ Including opposed cylinder-piston means


DEFINITION

Classification: 269/33

(under subclass 32) Device wherein at least one cylinder-piston unit moves its jaw*, in a straight line, toward a cylinder-piston unit similarly moving a second coacting jaw at a 180 deg. angle with respect to said first mentioned jaw.

(1) Note. One or more of the cylinder-piston means may be movable out of the opposed relationship.

(2) Note. The plural cylinder-piston means may operate from a common source of fluid supply, or from independent sources.

SEE OR SEARCH THIS CLASS, SUBCLASS:

25+, for patents to a holder including a jaw(s) moved directly by a cylinder or piston without additional positioning means.

140+, for patents to a holder with separate positioning means for each of a jaw pair.

218+, for patents to a holder with common actuating means for each of a jaw pair.