US PATENT SUBCLASS 215 / 317
.~.~ Resilient distortion of closure skirt holds it in closed position

Current as of: June, 1999
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215 /   HD   BOTTLES AND JARS

200  DF  CLOSURES {32}
316  DF  .~ Cap type {8}
317.~.~ Resilient distortion of closure skirt holds it in closed position {4}
318  DF  .~.~.~> Push on, twist off
319  DF  .~.~.~> Specifically designed to accommodate plural sizes
320  DF  .~.~.~> Combined with stopper structure
321  DF  .~.~.~> Closure and receptacle having preformed, coacting configurations

DEFINITION

Classification: 215/317

(under subclass 316) Devices, which are (1) made of an elastic, flexible or semi-flexible material or (2) are constructed in such a manner that flexibility is inherent in order that the closure will "snap" into a closed position or otherwise frictionally engage the external portion of the receptacle mouth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272, for cap closures having positive means, usually hand manipulable, to contract the depending skirt portion about the receptacle neck.

293, for closures having attached thereto spring type fastening means.

322, for closures that slide in a plane transverse to the receptacle axis in the opening and closing movement.