US PATENT SUBCLASS 48 / 53.3
.~.~.~.~ Diaphragm operated

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

*  DD  ACETYLENE {5}
*  DD  .~ Generators {5}
38  DF  .~.~ Carbide feed {11}
53  DF  .~.~.~ Pop valve {3}
53.3.~.~.~.~ Diaphragm operated

DEFINITION

Classification: 48/53.3

Carbid feed pop-valves operated by the movement of the diaphragm.