Radial lip seal

Details Radial lip seal Radial lip seal

2006-02-28

2006-02-28

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal combined with indicator, sampler, or inspection feature

Fluid pressure

C277S321000, C277S551000, C277S559000

Reexamination Certificate

active

07004471

ABSTRACT:
A radial lip seal including an annular support with a radially extending portion having an inner periphery. An annular seal lip formed of elastomeric material such as polytetrafluoroethylene is connected to the inner periphery. The lip has an inner side adapted to seal a circumferential surface of a shaft and an outer side. The outer side of the lip has a plurality of grooves or protrusions to vary the diameter of the lip. The varied diameter creates a substantial leak between the outer side of the lip and the circumferential surface. The leak created is sufficient to be detected by a low-pressure air test.

REFERENCES:
patent: 4114898 (1978-09-01), Bainard et al.
patent: 4126317 (1978-11-01), Bainard
patent: 5209499 (1993-05-01), Ruff et al.
patent: 5553866 (1996-09-01), Heinzen
patent: 5895052 (1999-04-01), Drucktenhengst et al.
patent: 6634648 (2003-10-01), Rockwell
patent: 6779798 (2004-08-01), Fougerolle
patent: 1116905 (2001-07-01), None

Affiliated with

Also associated with

Rating

Radial lip 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 Radial lip seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial lip seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3660422