Fluid handling – Line condition change responsive valves – Safety cut-off requiring reset
Patent
1992-10-26
1993-06-01
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
Safety cut-off requiring reset
137517, F16K 1724
Patent
active
052151131
ABSTRACT:
A fluid control device for hydraulic systems is provided having closure means movably positioned within a valve housing and adapted to selectively close a fluid passageway in response to a predetermined pressure level. The closure means includes a piston body slidably located in the valve housing for reciprocating movement therein and a spring adapted to bias the piston body away from a shoulder to maintain the fluid passageway open during normal operation. The piston body includes a conical nose and a plurality of flow channels (or apertures) which allow fluid to pass through the piston body during normal flow. When the fluid pressure is large, indicating a downstream break or leak in the flow line, the fluid pressure will overcome the force exerted by the spring and force the piston body against the shoulder, thereby blocking the flow pathway and stopping flow through the device.
REFERENCES:
patent: 805498 (1905-11-01), Steward
patent: 806268 (1905-12-01), Koontz
patent: 1186147 (1916-06-01), Syakas
patent: 2093015 (1935-10-01), Madden
patent: 2121936 (1938-06-01), Thomas
patent: 2699799 (1955-01-01), Wager
patent: 3106937 (1963-10-01), Sands
patent: 3216451 (1965-11-01), Smallpiece
patent: 3377109 (1968-04-01), Scott
patent: 4049016 (1977-09-01), Henry
patent: 4456029 (1984-06-01), McCrum
patent: 4830046 (1989-05-01), Holt
patent: 4880030 (1989-11-01), Terry
Hepperle Stephen M.
Jordan Andrew
LandOfFree
Precision safety shut-off valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Precision safety shut-off valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precision safety shut-off valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1808201