Seal for a joint or juncture – Seal between relatively movable parts – Brush seal
Reexamination Certificate
2007-02-27
2007-02-27
Patel, Vishal (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Brush seal
C415S231000, C415S173100
Reexamination Certificate
active
11226836
ABSTRACT:
A hybrid brush seal is provided having two bundles of axially spaced seal bristles each of which are mounted in a ring shape on a first machine component with bristle ends directed at a sealing surface of the second, rotating machine component. The bristle ends are kept from direct contact with the rotating machine component via one or more shoes which are designed such that as the shaft rotates a hydrodynamic film separates the shoe(s) from the shaft. The shoe(s) is attached to the bristle ends at discreet locations. Alternatively, one or more bundles of seal bristles are mounted at one end either to the fixed or rotating machine component, with the opposite bristle ends directed toward one or more shoes, and wherein one or more spring elements are connected between the machine component and shoes.
REFERENCES:
patent: 3917150 (1975-11-01), Ferguson et al.
patent: 4411594 (1983-10-01), Pellow et al.
patent: 4600202 (1986-07-01), Schaeffler et al.
patent: 5026252 (1991-06-01), Hoffelner
patent: 5181728 (1993-01-01), Stec
patent: 5183197 (1993-02-01), Howe
patent: 5755445 (1998-05-01), Arora
patent: 5799952 (1998-09-01), Morrison et al.
patent: 5944320 (1999-08-01), Werner et al.
patent: 5997004 (1999-12-01), Braun et al.
patent: 6079714 (2000-06-01), Kemsley
patent: 6079945 (2000-06-01), Wolfe et al.
patent: 6254344 (2001-07-01), Wright et al.
patent: 6428009 (2002-08-01), Justak
patent: 6558041 (2003-05-01), Laos
patent: 6840519 (2005-01-01), Dinc et al.
patent: 0 778431 (1997-06-01), None
patent: 4-347066 (1992-12-01), None
patent: WO 01/48887 (2001-07-01), None
Patel Vishal
Robinson, P.A. Gray
LandOfFree
Hydrodynamic brush 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 Hydrodynamic brush seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamic brush seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3888487