US PATENT SUBCLASS 269 / 28
.~.~ With separate air means in series with liquid 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}
28.~.~ With separate air means in series with liquid means


DEFINITION

Classification: 269/28

(under subclass 27) Device including (A) a pneumatically operated pressure means that moves one or more elements of a hydraulically operated pressure means, or (B) a compressible fluid chamber within an incompressible fluid chamber including means to increase or decrease the pressure exerted by said compressible fluid, or (C) the air and liquid means may be reversed in either (A) or (B); or (D) any combination of (A), (B), and/or (C).

(1) Note. See (4) Note and the search notes under subclass

20.