Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1991-01-30
1992-05-19
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
137542, 285315, 285319, 285921, F16K 1506
Patent
active
051139006
ABSTRACT:
A check valve includes first and second valve body parts. The first valve body part defines a protruding neck and the second valve body part defines a receiving flange sized to received the protruding neck in a telescoping manner. A snap fit retaining mechanism includes a set of hooks on the second valve body part and a hook receiving groove on the first valve body part. The hooks are shaped to engage the groove to hold the first and second valve body parts together as an assembly, with the neck received in the flange. A central passageway extends through the first and second valve body parts, and a valve seat is defined around the central passageway. A valve pin is mounted in the central passageway to releasably seal against the valve seat.
REFERENCES:
patent: 967514 (1910-08-01), Groh
patent: 2289946 (1940-09-01), Weatherhead, Jr.
patent: 2433119 (1947-12-01), Hansen
patent: 2548528 (1951-04-01), Hansen
patent: 2594641 (1952-04-01), Griffith et al.
patent: 2653792 (1953-09-01), Sacchini
patent: 2673062 (1954-03-01), Cornelius
patent: 2784987 (1957-03-01), Corcoran
patent: 2830641 (1958-04-01), Wolfe
patent: 2839120 (1958-06-01), McCord
patent: 2844183 (1958-07-01), McCord
patent: 2845945 (1958-08-01), Mancusi, Jr.
patent: 2845980 (1958-08-01), Williams
patent: 2874749 (1959-02-01), Brink
patent: 2904065 (1959-09-01), Butlin
patent: 2905485 (1959-09-01), Zajac
patent: 2943639 (1960-07-01), Smith
patent: 3010478 (1961-11-01), Buck et al.
patent: 3051196 (1962-08-01), Miller
patent: 3336942 (1967-08-01), Keith et al.
patent: 3430647 (1969-03-01), Suchowolec
patent: 3503418 (1970-03-01), Petrucci et al.
patent: 3633614 (1972-01-01), Scholz
patent: 3649055 (1972-03-01), Nilsen
patent: 3662761 (1972-05-01), Hoffman
patent: 3806031 (1974-04-01), Olson
patent: 3815624 (1974-06-01), Mullins
patent: 3891247 (1975-06-01), Smith
patent: 3893476 (1975-07-01), Stroh
patent: 4046163 (1977-09-01), Novak
patent: 4049037 (1977-09-01), Gale et al.
patent: 4062517 (1977-12-01), Jones
patent: 4064923 (1977-12-01), German et al.
patent: 4182370 (1980-01-01), Karcher
patent: 4475578 (1984-10-01), Nidle
patent: 4537384 (1985-08-01), Petersen et al.
patent: 4538658 (1985-09-01), Earley
patent: 4552183 (1985-11-01), Chick
patent: 4606558 (1986-08-01), Davidson
patent: 4624487 (1986-11-01), Thalmann
patent: 4647073 (1987-03-01), Kosaka
patent: 4739813 (1988-04-01), Pagani
patent: 4819685 (1989-04-01), Pagani
patent: 4825893 (1989-05-01), Gailey
patent: 4833951 (1989-05-01), Karcher et al.
patent: 4836235 (1989-06-01), Pagani
patent: 4979721 (1990-12-01), Gilbert
patent: 4991627 (1991-02-01), Nix
Sketch entitled "FIG. II PLASTIC HOUSING" (undated).
Piedmont Manufacturing Co. Part No. 446 and 802; Oct. 1988.
Drawing dated May, 10, 1988 entitled "1st MOD Primary Seal".
Aeroquip 5400-S2, p. 213, undated.
Bridge Products, Inc.
Nilson Robert G.
LandOfFree
Check valve with quick lock attachment feature 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 with quick lock attachment feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Check valve with quick lock attachment feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2412726