Back support truck seat back

Details Back support truck seat back Back support truck seat back

1978-03-10

1979-02-13

Mitchell, James C.

Chairs and seats

Bottom or back with means to alter contour

297353, 297384, 297411, A47C 300

Patent

active

041392353

ABSTRACT:
This seat back provides a variable low back support for truck drivers, and it consists primarily of a back rest of a seat, which is adjustable in height to suite the driver, and it includes an inflatable lower portion for supporting the driver's lower back, thus decreasing driver fatigue. The bladder, of the lower portion, is expanded by a common stem means or is connected to the truck's air supply, and the top of the seat back includes a head rest for further driver comfort.

REFERENCES:
patent: 478589 (1892-07-01), Gilbert
patent: 1731709 (1929-10-01), Cropsey
patent: 3156499 (1964-11-01), Freedman
patent: 3469883 (1969-09-01), Flint
patent: 3672722 (1972-06-01), Murcott
patent: 3770315 (1973-11-01), Smittle et al.
patent: 3773382 (1973-11-01), Coursault et al.
patent: 3833257 (1974-09-01), Dove
patent: 4012158 (1977-03-01), Harper

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