Adjustable seat

Details Adjustable seat Adjustable seat

1995-07-06

1996-11-26

Brown, Peter R.

Chairs and seats

Movable bottom

Tiltable

297338, 2973611, 248396, A47C 1022

Patent

active

055778038

ABSTRACT:
An adjustable seat having a seat cushion and a backrest which are both secured to an underframe. The seat further includes a hydrostatic system of incompressible fluid contained within a closed circuit. The hydrostatic system includes individual actuators which bear against the seat cushion or both the seat cushion and backrest to adjust the inclination thereof. A shutoff member is provided to alternately allow and prevent movement of fluid within the closed circuit to change and then maintain a desired inclination.

REFERENCES:
patent: 3558094 (1971-01-01), Radke
patent: 3902755 (1975-09-01), Sirol
patent: 4095770 (1978-06-01), Long
patent: 4957102 (1990-09-01), Tan et al.
patent: 5137329 (1992-08-01), Neale

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