Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1993-11-15
1995-07-11
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277177, F16J 1532, F16J 1548
Patent
active
054314151
ABSTRACT:
A seal element for installation in an annular groove having a mouth, first and second radial surfaces, and an axial surface therebetween. The seal element has a first radial surface which forms an acute heel angle with the groove first radial surface, and the seal element forms an inner static area adjacent the groove axial surface and first radial surface. Upon installation of a rod and low pressure application, the seal element is compressed into the groove, and the seal element first radial surface is moved into contact with the groove first radial surface. Thus, the seal element prevents contamination from entering into the inner static area. The seal element has first and second angled surfaces forming a high pressure sealing line and third and fourth angled surfaces forming a low pressure sealing line with a stress-relieving radius interconnecting the second and third angled surfaces. When the seal element is positioned in the groove, the angled surfaces face in the direction of and partially protrude through the groove mouth. The stress-relieving radius relieves excessive tensile stress, thereby alleviating the problem of cracking at the sealing face and premature seal failure. Moreover, the stress-relieving radius provides better flexing motion to the low pressure sealing lip, thereby avoiding high compressive stress and reducing the compressive set on the low pressure sealing lip.
REFERENCES:
patent: 2686402 (1954-08-01), Samuel
patent: 2914369 (1959-11-01), Hayman
patent: 3123367 (1964-03-01), Brummer et al.
patent: 3377076 (1968-04-01), Burnett
patent: 4268045 (1981-05-01), Traub
patent: 4342463 (1982-08-01), Burke
patent: 4417503 (1983-11-01), Izumi
patent: 4421330 (1983-12-01), Burke
patent: 4614348 (1986-09-01), Fournier
patent: 4723782 (1988-02-01), Muller
patent: 4836694 (1989-06-01), Schmehr et al.
patent: 4893823 (1990-01-01), Strouse et al.
patent: 4917390 (1990-04-01), Lee et al.
patent: 5205568 (1993-04-01), Stoll et al.
Millonig Hans F.
Nilkanth Vinay
Beres John L.
Cuchlinski Jr. William A.
Greene Tweed of Delaware, Inc.
LandOfFree
Seal with acute heel angle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seal with acute heel angle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seal with acute heel angle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-498627