Quick release valve

Details Quick release valve Quick release valve

1981-12-16

1984-09-04

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Fluid opened valve requiring reset

251 72, F16K 1700

Patent

active

044691254

ABSTRACT:
A quick release valve including a housing, a high pressure fluid inlet in the housing, a fluid outlet in the housing, a first plunger having a valve member at a first end thereof, a second annular plunger axially aligned with the first plunger and having a seat on the end thereof for receiving the valve member, a toggle linkage mounted between the housing and the second end of the first plunger for maintaining the valve member on the seat when the toggle linkage is overcenter but permitting the valve member to pull away from the seat when the toggle linkage is broken, and a lever with a weight thereon attached to the toggle linkage for biasing the toggle linkage to a broken condition but which is ineffective for doing so when the toggle linkage is in an overcenter position as a result of fluid pressure being exerted on the valve member.

REFERENCES:
patent: 166567 (1875-08-01), Steele
patent: 1380867 (1921-06-01), De Bolotoff
patent: 2973776 (1961-03-01), Allen
patent: 2973777 (1961-03-01), Troxell
patent: 3559690 (1971-02-01), Palmer
patent: 3906983 (1975-09-01), Parkison
patent: 4082104 (1978-04-01), Keeney

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