192 clutches and power-stop control – Transmission and brake – Torque-responsive brake
Reexamination Certificate
2005-04-12
2005-04-12
Rodriguez, Saul (Department: 3681)
192 clutches and power-stop control
Transmission and brake
Torque-responsive brake
C192S04100R, C192S08100C
Reexamination Certificate
active
06877597
ABSTRACT:
A clutch mechanism for seating units of the type having an adjustable support member. The clutch mechanism includes a housing having first and second opposite ends, and a generally cylindrical inner sidewall. A clamp member is movably interconnected with the housing, and the clamp member is adapted to secure the housing to a frame member of a seating unit. A rotor is rotatably mounted within the housing, and the rotor has a generally cylindrical outer surface. The rotor defines an axis of rotation, and has a channel with opposed sidewalls in the cylindrical outer surface extending generally parallel to the axis. A handle extends from the rotor, and a pulley is rotatably interconnected with the rotor. The pulley has an annular groove and an extension disposed in the channel of the rotor. The pulley is adapted to be operably coupled to an adjustable support member of a seating unit to provide adjustment of the support member. A coil spring is disposed around the rotor, and has opposite ends disposed in the channel adjacent the opposed sidewalls with the extension of the pulley position between the opposite ends. The coil spring frictionally engages the cylindrical inner sidewall and prevents rotation of the pulley relative to the housing when a rotational force is applied to the pulley. The sidewalls of the channel of the rotor engage the opposite ends of the coil spring and generate tension on the coil spring in a manner tending to reduce friction between the coil spring and the housing to permit rotation of the rotor and pulley relative to the housing when a force is applied to the handle.
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Bach David F.
Bach James W.
Grand Rapids Controls, Inc.
Quinn Christopher W.
Quinn Law Group PLLC
Rodriguez Saul
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