Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Reexamination Certificate
2006-02-07
2006-02-07
Jacyna, J. Casimer (Department: 3751)
Valves and valve actuation
With means to increase head and seat contact pressure
With positive reduction
C251S175000
Reexamination Certificate
active
06994316
ABSTRACT:
A rotor valve (10) having a rotor seal (34) containing a centrally disposed opening (52) for directing an external pressure (Pe) to a rear surface (35) of the seal for applying a sealing force against a sealing surface (36). A projection (38) of the seal surrounding the opening is disposed within a bore (40) formed in a rotor (14) of the valve. An O-ring seal (44) defines the portion of the rear surface exposed to the external pressure. The rotor may be supported on one end by a bearing assembly (80) and may be open at the opposed end for receiving incoming water. Circumferentially distributed slip-surface plugs extend radially beyond the diameter of the rotor to support the rotor along an interior surface (39) of the valve body (12).
REFERENCES:
patent: 2371657 (1945-03-01), Stark
patent: 3218026 (1965-11-01), Roy, Sr.
patent: 4165763 (1979-08-01), Hough
patent: 4338857 (1982-07-01), Mason
patent: 4414109 (1983-11-01), Aurthur
patent: 4548385 (1985-10-01), Barbuto
patent: 5154147 (1992-10-01), Muroki
patent: 5372104 (1994-12-01), Griffin
patent: 5413256 (1995-05-01), Mitchell et al.
patent: 5415147 (1995-05-01), Nagle et al.
patent: 5941206 (1999-08-01), Smith et al.
patent: 6076799 (2000-06-01), Baumann
patent: 6085788 (2000-07-01), Larson et al.
patent: 6098576 (2000-08-01), Nowak, Jr. et al.
patent: 6196167 (2001-03-01), Marsh et al.
patent: 6230668 (2001-05-01), Marsh et al.
patent: 6308739 (2001-10-01), Barbuto et al.
patent: 6345805 (2002-02-01), Chatufale
patent: 6647934 (2003-11-01), Marsh et al.
Andes William Scott
Beusse Brownlee Wolter Mora & Maire, PA
Jacyna J. Casimer
Maire David G.
LandOfFree
Rotor valve and seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotor valve and seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor valve and seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3672630