US PATENT SUBCLASS 220 / 203.26
.~.~.~.~.~ Plural springs bias individual members

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
202  DF  .~ With condition responsive vent or valve {1}
203.01  DF  .~.~ Responsive to pressure {10}
203.23  DF  .~.~.~ Spring-biased, axially translating member {2}
203.24  DF  .~.~.~.~ Two-way pressure relief valve {2}
203.26.~.~.~.~.~ Plural springs bias individual members

DEFINITION

Classification: 220/203.26

Plural springs biasing individual members:

(under subclass 203.24) Device wherein an individual resilient mass is provided to each of a plurality of pressure responsive axially translating members, so that each member is individually urged in the appropriate direction.

(1) Note. For valves which have only one pressure responsive member biased by a spring, and have another member either of a different nature (ball valve, flexible valve, etc.) or simply not spring-biased, the invention will not be classified in this subclass, but in subclass 203.24 above.