Remotely controllable reset mechanism for a vacuum-actuated syst

Details Remotely controllable reset mechanism for a vacuum-actuated syst Remotely controllable reset mechanism for a vacuum-actuated syst

1984-08-03

1985-11-12

Walton, George L.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

4406, 4427, 4DIG15, 116202, 116277, 137554, 200310, 251 77, 251113, 25112904, 25112920, F16K 3102, F16K 3500, F16K 3700

Patent

active

045523312

ABSTRACT:
A reset mechanism for a vacuum-actuated lockout device that disables a flush valve to prevent flooding of a receptacle includes a solenoid coupled to a reset stem and to a vacuum relief valve built into the reset stem. The solenoid is energized to open the relief valve in a first portion of a reset stroke and is coupled to the reset stem with a lost motion connection for withdrawal of the reset stem in a second portion of the reset stroke, after relief of the vacuum. A circuit is also disclosed for remote control of the reset mechanism.

REFERENCES:
patent: 1045121 (1912-11-01), Carroll
patent: 1644171 (1927-10-01), Caldwell
patent: 1856350 (1932-05-01), Metcalf
patent: 2378404 (1945-06-01), Grant, Jr.
patent: 2780433 (1957-02-01), Fleming
patent: 4041557 (1977-08-01), Ringler
patent: 4195662 (1980-04-01), Gottel
patent: 4203173 (1980-05-01), Morris et al.
patent: 4498203 (1985-02-01), Barnum et al.

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