US PATENT SUBCLASS 220 / 203.23
.~.~.~ Spring-biased, axially translating member

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.~.~.~ Spring-biased, axially translating member {2}
203.24  DF  .~.~.~.~> Two-way pressure relief valve {2}
203.27  DF  .~.~.~.~> One-way, outwardly venting pressure relief valve

DEFINITION

Classification: 220/203.23

Spring-biased, axially translating member:

(under subclass 203.01) Device wherein a plate, plunger or other member is provided within the vent or valve for reciprocation along the major axis of the closure, wherein the member is urged by a resilient mass such that a change in pressure in the receptacle works against the resilient mass to translate the member.