Activating apparatus in a liquid conveying system operated by va

Details Activating apparatus in a liquid conveying system operated by va Activating apparatus in a liquid conveying system operated by va

1983-12-08

1985-04-16

Maslousky, Paul E.

Valves and valve actuation

Biased trip

Fluid pressure trip actuation

251 75, 92 25, 92 28, 92 84, 92132, 92 94, F15B 1526, F16K 3156

Patent

active

045111170

ABSTRACT:
An activating apparatus or device, for example for a valve in a liquid conveying system operated by means of a vacuum. The activating apparatus comprises a normally latched or locked operating device which by means of a spring, or the like, is connected to a force accumulator. The force accumulator is moved by the influence of vacuum and thereby tightens the spring which, when a lock arm disengages from the operating device, is released so that the operating device is moved, and thereby opens the valve.

REFERENCES:
patent: 970329 (1910-09-01), Heck
patent: 2811137 (1957-10-01), Hartel
patent: 3321194 (1967-05-01), Carlson
patent: 3482267 (1969-12-01), Liljendahl
patent: 4134421 (1979-01-01), Cameron

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