US PATENT SUBCLASS 267 / 113
FLUID

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

113FLUID {5}
114  DF  .~> Time delay
115  DF  .~> Draft gear
116  DF  .~> Bumper
117  DF  .~> Cushion for person
118  DF  .~> Expansible-contractible chamber device {5}

DEFINITION

Classification: 267/113

(under the class definition) Spring device in which the spring element is a gas or a liquid within an enclosure.

(1) Note. A spring device enclosure substantially filled with solid material is excluded from this subclass, even though the material be fluent, or liquid-saturated or air-saturated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64.11+, for a fluid spring device in a vehicle.