Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2011-03-08
2011-03-08
Patel, Vishal (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
C277S611000, C277S619000, C277S638000
Reexamination Certificate
active
07900934
ABSTRACT:
To reduce a shaft insertion load and ensure a sealing function, a carbon dioxide gas sealing device has a seal ring provided in a mounting groove having a tapered groove bottom, a backup ring having a tapered portion corresponding to the tapered groove bottom, and a gap provided between the side wall surface at the low pressure side of the mounting groove and a side end surface at the lower pressure side of the backup ring, a tapered surface that approaches the peripheral surface of a housing from the side end surface on the high pressure side toward the lower pressure side is provided on the peripheral surface on the side opposite to the tapered portion and the tapered portion has two-stage tapers.
REFERENCES:
patent: 7708283 (2010-05-01), Azibert et al.
patent: 2006/0232066 (2006-10-01), Kanagae et al.
patent: S46-4226 (1971-02-01), None
patent: 11-315925 (1999-11-01), None
patent: 2007303635 (2007-11-01), None
Jacobson & Holman PLLC
NOK Corporation
Patel Vishal
LandOfFree
Carbon dioxide gas sealing enclosed device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbon dioxide gas sealing enclosed device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon dioxide gas sealing enclosed device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2722850