Fluid handling – Systems – With flow control means for branched passages
Patent
1983-03-18
1986-02-18
Michalsky, Gerald A.
Fluid handling
Systems
With flow control means for branched passages
137881, 297284, 297DIG3, F16K 1114
Patent
active
045706760
ABSTRACT:
A lumbar support air valve assembly is comprised of a housing having a chamber therein adapted to be connected to a source of air under pressure. A plurality of outlet ports are provided through the housing corresponding in number to the number of air bags located in the lumbar support region of an automobile seat back. The passage of pressurized air to the outlet ports is controlled by a check valve associated with each outlet port. A pressure relief valve is provided for limiting the pressure within the chamber and the individual air bags to a pre-determined value. A solenoid actuator is associated with each check valve within the housing so that on operation of the solenoid actuator by means of a switch located at a remote location on or near the dash board a solenoid actuator will cause the respective check valve to open. The energization of each solenoid actuator to open a check valve simultaneously opens an exhaust port for reducing the air pressure within the air bag associated therewith.
REFERENCES:
patent: 2136510 (1938-11-01), Jensen
patent: 2998817 (1961-09-01), Armstrong
patent: 3348880 (1967-10-01), Swann
patent: 3446203 (1969-05-01), Murray
patent: 3667075 (1972-06-01), Ballard et al.
patent: 3784994 (1974-01-01), Kery
patent: 4169295 (1979-10-01), Darling
patent: 4190286 (1980-02-01), Bentley
patent: 4491157 (1985-01-01), Hashimoto
patent: 4491364 (1985-01-01), Hattori et al.
Hashimoto Nobuyuki
Nishio Shigeru
Aisin Seiki Kabushiki Kaisha
Michalsky Gerald A.
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