Fluid handling – With leakage or drip collecting
Patent
1988-04-27
1989-01-03
Walton, George L.
Fluid handling
With leakage or drip collecting
137315, 137797, 251288, 251309, 251312, 251341, F16K 4300, F16K 1306, F16K 1740
Patent
active
047949449
ABSTRACT:
A service valve includes a valve body (12) having an upper chamber (18), a lower chamber (20), an open top end (22) and an open bottom end (24). The lower chamber (20) includes an inlet opening (26) and an outlet opening (28). A valve member (14) is disposed in the valve body (12) and is molded of plastic material to form a unitary body including a plug portion (36) having a flow passage (38) therethrough and an actuator portion (34). The plug portion (36) is rotatable in the valve body (12) between an open position where the flow passage (38) is aligned with the inlet (26) and outlet (28) openings and a closed position where the flow passage (38) is out of alignment with the inlet (26) and outlet (28) openings. The actuator portion (34) extends outwardly from the plug portion (36) through one of the chambers (18, 20). First ( 50) and second (51) seals act between the plug portion (36) and the valve body (12) for sealing against leakage from the inlet opening (26) and outlet opening (28). A third seal (72) is disposed between the valve body (12) and the actuator portion (34) for sealing against leakage into one of the chambers (18, 20). Locking structure (54) is disposed between the third seal (72) and one of the first (50) and second (51) seals for rotatably securing the valve plug (14) within the valve body (12).
REFERENCES:
patent: 2511477 (1950-06-01), Mueller
patent: 2547116 (1951-04-01), Gould
patent: 2604293 (1952-07-01), Phillips
patent: 2621886 (1952-12-01), Mueller
patent: 2642257 (1953-06-01), Mueller et al.
patent: 2832562 (1958-04-01), Myers
patent: 3057370 (1962-10-01), Hamilton
patent: 3066908 (1962-12-01), Floren et al.
patent: 3079675 (1963-03-01), Bradbury
patent: 3168280 (1965-02-01), Mueller
patent: 3185179 (1965-05-01), Harautuneian
patent: 3257096 (1966-06-01), Floren et al.
patent: 3350057 (1967-10-01), Luckenbill
patent: 3434691 (1969-03-01), Hamilton
patent: 3503586 (1970-03-01), Bordes
patent: 3512944 (1970-05-01), Craig et al.
patent: 3550902 (1970-12-01), Pidgeon et al.
patent: 3552439 (1971-01-01), Siver
patent: 3563512 (1971-02-01), Hauffe
patent: 4003403 (1977-01-01), Nehring
patent: 4015816 (1977-04-01), Semon
patent: 4030696 (1977-06-01), Bake
patent: 4072161 (1978-02-01), Schoeneweis
patent: 4073314 (1978-02-01), Speelman
patent: 4113228 (1978-09-01), Frye
patent: 4141538 (1979-02-01), Bake et al.
patent: 4147184 (1979-04-01), Jess
patent: 4217933 (1980-08-01), Perry et al.
patent: 4219046 (1980-08-01), West et al.
patent: 4257575 (1981-03-01), Runyan
patent: 4262880 (1981-04-01), Danko et al.
patent: 4319735 (1982-03-01), Moen
patent: 4497344 (1985-02-01), Kisiel
patent: 4511120 (1985-04-01), Conley et al.
patent: 4519414 (1985-05-01), Assya, Jr.
patent: 4531537 (1985-07-01), Smith
patent: 4592534 (1985-06-01), Veda et al.
patent: 4598728 (1986-07-01), Ralet
patent: 4609177 (1986-09-01), Turner et al.
Dresser Industries Inc.
Walton George L.
LandOfFree
Plastic 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 Plastic valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plastic valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2163073