Air evacuation valve for blood pressure measuring device

Details Air evacuation valve for blood pressure measuring device Air evacuation valve for blood pressure measuring device

1974-07-30

1977-03-22

Howell, Kyle L.

Valves and valve actuation

With selective flow regulation

128 205G, 251263, F16K 2400

Patent

active

040132650

ABSTRACT:
A blood pressure measuring device with a quick-evacuation air valve, where the cone-shaped valve plunger has a bypass channel reaching from the pressureless side to a point on the sealing surface of the plunger which, at the maximum normal opening stroke of the latter remains within the throttling range of the valve, but which after an additional opening motion against an abruptly higher spring bias, is opened to the pressure side, thereby rapidly evacuating the device. A detent serves to hold the actuating lever of the valve in its quick-evacuation position.

REFERENCES:
patent: 2006878 (1935-07-01), Bandoly
patent: 3187775 (1965-06-01), Pinnell
patent: 3254671 (1966-06-01), Berliner
patent: 3626959 (1971-12-01), Santomieri
patent: 3707972 (1973-01-01), Villari et al.
patent: 3738357 (1973-06-01), Hayes
patent: 3779236 (1973-12-01), Stewart

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