US PATENT SUBCLASS 220 / 203.16
.~.~.~.~ Resilient sheetlike member closes vent opening

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
202  DF  .~ With condition responsive vent or valve {1}
203.01  DF  .~.~ Responsive to pressure {10}
203.11  DF  .~.~.~ Flexible, resilient vent closing member {4}
203.16.~.~.~.~ Resilient sheetlike member closes vent opening {2}
203.17  DF  .~.~.~.~.~> Self-closing aperture in member
203.18  DF  .~.~.~.~.~> Diaphragm-type member

DEFINITION

Classification: 220/203.16

Resilient sheetlike member closes vent opening:

(under subclass 203.11) Device wherein said vent closing member comprises a flexible sheetlike member which covers said vent, and moves away from said vent in response to pressure.