US PATENT SUBCLASS 297 / 302.1
.~ Back and bottom adjust in a fixed relationship

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

285  DF  BACK MOVEMENT RESILIENTLY OPPOSED IN OPERATING POSITION {12}
302.1.~ Back and bottom adjust in a fixed relationship {4}
302.2  DF  .~.~> Fluid-spring
302.3  DF  .~.~> Torsion bar or torsion spring
302.4  DF  .~.~> Coil spring
302.5  DF  .~.~> Including back movement limiting device {1}

DEFINITION

Classification: 297/302.1

Back and bottom adjust in a fixed relationship:

(under subclass 285) Opposed back movement wherein the upright support and bottom are integrally fixed as a unit, and the elastic member opposes movement of the unit when force is exerted to the support by the occupant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264.1+, for a track mounted rocker where a spring returns a seat to a neutral position.

325+, for a bottom and back unit tiltable without elastic opposition.

(1) Note. This subclass contains chairs wherein the upright support and the bottom support move in a fixed angular relationship (i.e, a 90 deg. angle).