US PATENT SUBCLASS 220 / 295
.~.~.~ With biased gasket or packing

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
288  DF  .~ Removable closure guided in rotary movement (e.g., screw) {6}
293  DF  .~.~ Quick removal (e.g., bayonet) {7}
295.~.~.~ With biased gasket or packing

DEFINITION

Classification: 220/295

(under subclass 293) Device provided with a gasket or packing member and means apart from the inherent resilience of the gasket or packing for urging it into a sealing engagement between the closure and receptacle mouth.