US PATENT SUBCLASS 297 / 374
.~.~.~ Friction detent

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

353  DF  MOVABLE BACK {2}
354.1  DF  .~ Tiltable {3}
354.12  DF  .~.~ Plural distinct occupant-supporting positions {11}
374.~.~.~ Friction detent {2}
375  DF  .~.~.~.~> Clamp acts on axially moving rod
376  DF  .~.~.~.~> Pin and slot

DEFINITION

Classification: 297/374

(under subclass 354.12) Device wherein the means to hold the back immovable includes two contacting relatively moving parts, and wherein a resistance to relative motion is generated by the contact of one part with the other, and wherein that contact may be increased or decreased to prevent or permit such relative motion.