Mechanical seal ring assembly with hydrodynamic pumping...

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C277S403000

Reexamination Certificate

active

11100728

ABSTRACT:
A seal ring configuration adapted to be disposed about a shaft to seal a fluid at a pressure differentials across the seal. The seal ring configuration comprises a mating ring and an axially movable primary ring. The primary ring includes a seal face in opposing relationship to the mating ring seal face to define a seal interface. The mating ring seal face or the primary ring seal face defines an annular axially recessed section and a dam section. The recessed section is axially disposed further from the cooperating seal face relative to the dam section. The axially recessed section further includes a face pattern axially spaced further from the dam section than the recessed portion and is capable of generating a hydrodynamic force between the mating ring seal face and the primary ring seal face.

REFERENCES:
patent: 3744805 (1973-07-01), Heinrich
patent: 4407512 (1983-10-01), Trytek
patent: 4799693 (1989-01-01), Johnston
patent: 4836561 (1989-06-01), Lebeck et al.
patent: 5090712 (1992-02-01), Pecht et al.
patent: 5092612 (1992-03-01), Victor et al.
patent: 5556111 (1996-09-01), Sedy
patent: 5938206 (1999-08-01), Klosterman et al.
patent: 5947481 (1999-09-01), Young
patent: 6109379 (2000-08-01), Madwed
patent: 6446976 (2002-09-01), Key et al.
patent: 6454268 (2002-09-01), Muraki
patent: 6626436 (2003-09-01), Pecht et al.
patent: 0935086 (1999-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Mechanical seal ring assembly with hydrodynamic pumping... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical seal ring assembly with hydrodynamic pumping..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical seal ring assembly with hydrodynamic pumping... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3939774

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.