US PATENT SUBCLASS 164 / 173
.~.~.~ Fluid pressure actuated means

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

159  DF  MEANS TO SHAPE A FORMING SURFACE {8}
169  DF  .~ Including means for compacting particulate fluent mold materials {12}
172  DF  .~.~ Plural rammers {1}
173.~.~.~ Fluid pressure actuated means

DEFINITION

Classification: 164/173

(under subclass 172) Apparatus wherein the rammers are powered by fluid pressure means.

(1) Note. The pressure does not have to be directly applied to the rammer but may be transmitted through a mechanical linkage.