US PATENT SUBCLASS 210 / 349
.~ Pulsation dampener or gas trapping

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
349.~ Pulsation dampener or gas trapping

DEFINITION

Classification: 210/349

(under subclass 348) Apparatus provided with means dampening pulsations in liquid flow or for trapping a gas, usually air.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410, for a device which traps a gas and then releases it to blowback a filter medium.