US PATENT SUBCLASS 164 / 307
.~.~.~.~ Manually operated pressure generator

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

271  DF  MEANS TO SHAPE METALLIC MATERIAL {12}
284  DF  .~ Pressure shaping means {5}
303  DF  .~.~ Injection type {4}
306  DF  .~.~.~ Direct pneumatic charging means {3}
307.~.~.~.~ Manually operated pressure generator

DEFINITION

Classification: 164/307

(under subclass 306) Apparatus which includes a hand manipulated producer for the pneumatic charging pressure.

(1) Note. Included herein are those patents wherein muscle power is utilized in generating the pneumatic pressure force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, for manually operated pneumatic pressure generating means for applying secondary pressure.