Low leakage rotary valve

Details Low leakage rotary valve Low leakage rotary valve

1996-06-04

1998-06-30

Jacyna, J. Casimer

Dispensing

With discharge assistant

Movable or conveyer-type trap chamber

414219, G01F 1110

Patent

active

057720819

ABSTRACT:
A low leakage rotary valve composes of a housing, a rotor, a driving end valve cover and a washing end valve cover. The driving end valve cover and the washing end valve cover are to secure the rotor in the housing. The driving end valve cover houses a detachable driving shaft which can transmit an external driving force to the rotor for rotation. The washing end valve cover allows the rotor to be removed for cleaning. Inside the driving end valve cover and washing end valve cover, there are provided respectively a sealing ring to prevent the material contained in the valve from contamination or to avoid pressure leakage. The edge of the blades of the rotor is extended to reduce gas leakage. A three-dimensional sealing is integrally provided on the outer edges of the rotor blades and the circumferential edges of the driving end valve cover and the washing end valve cover to further prevent gas leakage that may occur. Thereby the passage from the upper opening, housing and lower opening is tightly sealed to prevent gas leakage.

REFERENCES:
patent: 2766911 (1956-10-01), Greaves et al.
patent: 3151784 (1964-10-01), Tailor
patent: 3273758 (1966-09-01), Starrett
patent: 3556355 (1971-01-01), Ruiz
patent: 3633797 (1972-01-01), Graff
patent: 4059205 (1977-11-01), Heyl
patent: 4072253 (1978-02-01), Walters, Jr.
patent: 4180188 (1979-12-01), Aonuma et al.
patent: 4473092 (1984-09-01), Becker
patent: 4915265 (1990-04-01), Heep et al.
patent: 5014885 (1991-05-01), Heep et al.
patent: 5201441 (1993-04-01), Hoppe et al.
patent: 5303672 (1994-04-01), Morris
patent: 5392964 (1995-02-01), Stapp et al.
patent: 5472305 (1995-12-01), Ikeda et al.
patent: 5544995 (1996-08-01), Ogawa et al.
patent: 5620116 (1997-04-01), Kluger et al.

Affiliated with

Also associated with

Rating

Low leakage rotary 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 Low leakage rotary valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low leakage rotary valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1850665