US3892418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal ring
Assignee: Sacomo Sierra Inc
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Filing: 1973-04-04
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Granted: 1975-07-01
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Expires: 1993-04-04
Abstract
Abstract A one piece seal ring is provided having rounded lips wherein the top point of sealing is below the top of the ring and the ring has a large area in contact with the sealing surface. The seal ring has a narrow, hollow center portion and no filler strip is employed in the center of the ring.
Inventors
- 👤 Maurice D Felt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:28
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; F16J15/3236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
In a sealing ring having a cross sectional configuration consisting of a generally rectangular base having a flat bottom portion and two shoulders of equal height extending generally upward from said flat base, said shoulders forming the arms of a U, said shoulders having a space between them extending upwardly from a root, the outward surface of the said shoulders tapering outwardly from the level of the root and the upper surfaces of said shoulders being symmetrically rounded 180*, the improvement comprising a ring designed for nominal dimension, said ring having an uncompressed cross sectional width substantially greater than said nominal dimension and said shoulders having an open space between them wherein the space between the shoulders is substantially less than the difference between said nominal dimension and the actual distance between the extremities of said shoulders in an unstretched condition whereby said U will close and flatten the abutting surfaces of said shoulders when said ring is installed in a space substantially equal to said nominal dimension, said ring having an unstressed cross sectional width of about 110 percent nominal, said root having a width of about 12 1/2 percent nominal and the distance between the shoulders being about 6 1/4 percent nominal at their closest approach.
Claim 2
Dependent Claim
208 words
In a sealing ring having a cross sectional configuration consisting of a generally rectangular base having a flat bottom portion and two shoulders of equal height extending generally upward from said flat base, said shoulders forming the arms of a U, said shoulders having a space between them extending upwardly from a root, the outward surface of the said shoulders tapering outwardly from the level of the root and the upper surfaces of said shoulders being symmetrically rounded 180*, the improvement comprising a ring designed for nominal dimension, said ring having an uncompressed cross sectional width substantially greater than said nominal dimension and said shoulders having an open space between them wherein the space between the shoulders is substantially less than the difference between said nominal dimension and the actual distance between the extremities of said shoulders in an unstretched condition whereby said U will close and flatten the abutting surfaces of said shoulders when said ring is installed in a space substantially equal to said nominal dimension, said ring having an unstressed cross sectional width of about 110 percent nominal, said root having a width of about 12 1/2 percent nominal and the distance between the shoulders being about 6 1/4 percent nominal at their closest approach.
References Cited (Backward Citations)
US3653672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |