US PATENT SUBCLASS 297 / 300.1
.~ Back and seat adjust simultaneously

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

285  DF  BACK MOVEMENT RESILIENTLY OPPOSED IN OPERATING POSITION {12}
300.1.~ Back and seat adjust simultaneously {1}
300.2  DF  .~.~> Back tilts while seat inclination adjusts {4}

DEFINITION

Classification: 297/300.1

Back and seat adjust simultaneously:

(under subclass 285) Opposed back movement wherein the elastic apparatus opposes movement of the upright such that when force is exerted to the support by the occupant, the bottom moves in at least one (x, y, or z) direction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

344.12+, for a bottom and back unit which is movable vertically, without any resilient support.

452.1+, for a static bottom and back unit, per se.

(1) Note. This subclass contains chairs wherein the upright support movement is accompanied with movement of the bottom in a non-fixed angular relationship.