Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1999-03-02
2000-03-21
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Direct response valves
137542, F16K 1500
Patent
active
060390735
ABSTRACT:
A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder engaged by a keeper which receives the outer end of the valve stem and holds a coil spring against the valve element. The valve assembly is disassembled by manipulating the keeper against the spring out of engagement with the annular end shoulder.
REFERENCES:
patent: 953330 (1910-03-01), Gordon, Jr.
patent: 1260663 (1918-03-01), Gould et al.
patent: 1364001 (1920-12-01), Shadduck
patent: 2170478 (1939-08-01), Long et al.
patent: 2351874 (1944-06-01), Parker
patent: 2524951 (1950-10-01), Ashton
patent: 2804281 (1957-08-01), Osburn
patent: 2909192 (1959-10-01), Dobrick
patent: 2943639 (1960-07-01), Smith
patent: 2973008 (1961-02-01), Klose
patent: 3434495 (1969-03-01), Scarmucci
patent: 3749122 (1973-07-01), Gold
patent: 3995658 (1976-12-01), Hager
patent: 4148338 (1979-04-01), Skoli
patent: 4279403 (1981-07-01), Hobson
patent: 4488556 (1984-12-01), Hicks
patent: 4532958 (1985-08-01), Napolitano
patent: 4653725 (1987-03-01), Nanz et al.
patent: 4765364 (1988-08-01), Arcari
patent: 4776369 (1988-10-01), Lardner et al.
patent: 4964391 (1990-10-01), Hoover
patent: 4998554 (1991-03-01), Rogers
patent: 5033503 (1991-07-01), Horton et al.
patent: 5113900 (1992-05-01), Gilbert
patent: 5617893 (1997-04-01), Webster
Messick DeLaun T.
Novak Mark A.
Ferensic Denise L.
International Valve Corporation
Kim Joanne Y.
LandOfFree
Check 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 Check valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Check valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-722500