Exhaust valve having a constant bleed rate

Details Exhaust valve having a constant bleed rate Exhaust valve having a constant bleed rate

1986-12-12

1988-02-02

Howell, Kyle L.

Surgery

Truss

Pad

2511491, A61B 502

Patent

active

RE0325872

ABSTRACT:
Disclosed is an exhaust valve having an approximately constant rate of pressure loss per unit time which is particularly useful with an automatic sphygmomanometer. A pair of abutting plates are provided in a fluid flow path. The plates are pressurized into contact with each other at least in part by a pressurized fluid to be exhausted through the valve. At least one of the plates is formed of a resilient material and a gap-forming member is disposed between the abutting plates to define an exhaust passage which has a cross section which varies as the pressure of the pressurized fluid varies.

REFERENCES:
patent: 3567175 (1971-03-01), Sciuto, Jr.
patent: 3779236 (1973-12-01), Stewart
patent: 3893478 (1975-07-01), Peters
patent: 3918437 (1975-11-01), Saba
patent: 4037587 (1977-07-01), Kaneda et al.
patent: 4198031 (1980-04-01), Ezekiel et al.
patent: 4200259 (1980-04-01), Ueda
patent: 4326536 (1982-04-01), Kitagawa et al.
patent: 4402340 (1983-09-01), Lockwood, Jr.

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