Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1974-12-13
1977-02-22
Weakley, Harold W.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137496, F16K 3114
Patent
active
040087352
ABSTRACT:
A fire valve having a cooperating valve seat and shiftable valve part. The valve part is carried by a floating valve stem. The first valve includes a piston and cylinder combination which is operatively associated with the valve stem and which causes the valve part to be selectively spaced from the valve seat in response to fluid pressure in the valve.
REFERENCES:
patent: 1167287 (1916-01-01), Ford
patent: 2339384 (1944-01-01), Duckworth
patent: 2621015 (1952-12-01), MacGeorge
patent: 2707484 (1955-05-01), Rush
patent: 3400734 (1968-09-01), Rosenberg
patent: 3692047 (1972-09-01), Camp
Elkhart Brass Manufacturing Co., Inc.
Weakley Harold W.
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