US PATENT SUBCLASS 267 / 118
.~ Expansible-contractible chamber device

Current as of: June, 1999
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267 /   HD   SPRING DEVICES

113  DF  FLUID {5}
118.~ Expansible-contractible chamber device {5}
119  DF  .~.~> Press cushion
120  DF  .~.~> Vehicle; for non-support or accessory support cushioning
121  DF  .~.~> Compound
122  DF  .~.~> Diaphragm or bellows {1}
124  DF  .~.~> Piston {4}

DEFINITION

Classification: 267/118

(under subclass 113) Spring device in which the enclosure is bounded by structure defining top, bottom and side walls, one of which walls is substantially rigid and another is displaceable, throughout a broad area thereof, to recoverably vary the cubic capacity of the enclosure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113, for a fluid spring device enclosure entirely of flexible wall structure; or a fluid spring device flexible wall which is deflected at only a localized point thereof since it has no means for distributing a localized force throughout the wall.