Valves and valve actuation – Rotary valves – Butterfly
Patent
1997-03-25
1998-11-24
Fox, John
Valves and valve actuation
Rotary valves
Butterfly
251306, F16K 122
Patent
active
058397175
ABSTRACT:
A butterfly valve in which a valve body has a transverse shaft mounted in transverse bores in the valve body. A disc is mounted on the shaft for opening and closing the valve. A groove in the shaft receives a ring that is fastened within one transverse bore, for example by a cover plate that clamps the ring against a shoulder in the transverse bore. The ring may be machined to fit the groove loosely and thus play of the shaft in relation to the valve body is governed by the amount of play of the ring in the groove. Bearings on which the shaft is supported are provided with interior wiper seals, and a lock is provided for locking the shaft to the valve body in case of failure of the shaft, for example in case of failure of the shaft at the disc.
REFERENCES:
patent: 2883149 (1959-04-01), Fiorentini
patent: 3612483 (1971-10-01), Pool
patent: 3642248 (1972-02-01), Benware
patent: 3997142 (1976-12-01), Broadway
patent: 4395017 (1983-07-01), Brautigan
patent: 4604254 (1986-08-01), Yamamoto et al.
patent: 4653724 (1987-03-01), Garrigues et al.
patent: 4826133 (1989-05-01), Hiltebrand
patent: 5152501 (1992-10-01), Raymond, Jr.
patent: 5222382 (1993-06-01), De Vizzi
patent: 5299597 (1994-04-01), Fort et al.
patent: 5598724 (1997-02-01), Primeau
Tricentric: High Performance Butterfly Valves, CS Valve Company Tricentric Division, Score Energy Products Inc., product brochure, 12 pages, undated, but precedes filing date of application.
Rotary Tight Shut-Off Valve Type MAK Series 316, Adams U.S.A., product brochure, 4 pages, undated, but precedes filing date of application.
The Universal Valve 30,000 Series, Vanessa Valve Corp., product brochure, 20 pages, undated, but precedes filing date of application.
MV Series, Butterfly Valves, Orton S.P.A., product brochure, 39 pages, undated, but precedes filing date of application.
Tricentric for severe service: the Unique Valve System, by CS Valve Company Tricentric Division, product brochure, 16 pages, undated, but precedes filing date of application.
Fox John
Lambert Anthony R.
LandOfFree
Valve with improved shaft retainer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve with improved shaft retainer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve with improved shaft retainer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1695612