Valves and valve actuation – Detachable actuator – Rotary valve
Patent
1978-10-12
1981-03-24
Cline, William R.
Valves and valve actuation
Detachable actuator
Rotary valve
251315, 251309, 403248, F16K 3100
Patent
active
042575753
ABSTRACT:
A rotary ball valve comprises a housing formed of plastic material, the housing including a through passage. A plug formed of a plastic material is rotatably mounted in the housing and includes a ball-shaped gate having a passage which is alignable with the housing passage when the plug is open. A stem projects laterally of the housing passage to enable the plug to be manually rotated. A pair of seating rings formed of an anti-friction material encircle respective ends of the gate passage when the plug is open. The housing includes a pair of annular flanges disposed on opposite sides of the plug passage. Each flange contacts a back side of a respective one of the seating rings. Each flange is notched around its periphery to form a plurality of circumferentially spaced flange segments whose inner diameter is substantially the same as the diameter of the gate passage. The flange segments are arranged to urge the seating rings against the gate and are independently yieldable to enable the rings to conform to the shape of the periphery of the gate. Each seating ring includes an annular groove on its back side located radially outwardly of the flange segments. Each flange includes an annular ridge received in the groove and forming a fluid seal between the housing and the seating rings. A handle is provided which can be snapped onto the stem. A cap is thereafter inserted into the handle to prevent accidental removal of the handle.
REFERENCES:
patent: 2021490 (1935-11-01), Rigandi
patent: 2333789 (1943-11-01), Howard
patent: 3131906 (1964-05-01), King
patent: 3202175 (1965-08-01), Dumm
patent: 3271845 (1966-09-01), Breher
patent: 3341261 (1967-09-01), Fenlin
patent: 3503586 (1970-03-01), Bordes
patent: 3807692 (1974-04-01), Usab et al.
patent: 3907959 (1975-09-01), Wise et al.
patent: 3961770 (1976-06-01), Wrasman
patent: 4023773 (1977-05-01), Wise
patent: 4038358 (1977-07-01), Wrasman
patent: 4042307 (1977-08-01), Jarvis
Bressler M.
Celanese Corporation
Cline William R.
Morgan T. J.
Shedden J. A.
LandOfFree
Rotary ball valve having seating rings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary ball valve having seating rings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary ball valve having seating rings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2405825