US3147015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal ring
Assignee: Weatherhead Co
•
Filing: 1960-03-24
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Granted: 1964-09-01
•
Expires: 1980-03-24
Abstract
No abstract record available.
Inventors
- 👤 Frank J Hanback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:14
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/06; F16L17/08; F16L27/00; F16L27/08; F16L27/087; F16L27/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A SEALING RING OF RESILIENT MATERIAL FOR USE IN A CONFINED ANNULAR RECESS, SAID SEALING RING HAVING A WALL DEFINING AN ANNULAR CHAMBER, SAID WALL HAVING AN ANNULAR GAP ON AN AXIALLY FACING SIDE OF SAID SEALING RING, THE RADIALLY INNER EDGE OF SAID WALL ADJACENT SAID GAP BEING FORMED WITH AN ANNULAR RIB OF GREATER AXIAL AND RADIAL THICKNESS THAN THE REMAINDER OF SAID WALL, SAID REMAINDER OF SAID WALL BEING OF SUBSTANTIALLY UNIFORM THICKNESS, SAID RIB HAVING AN OUTER DIAMETER LESS THAN THE OUTER DIAMETER OF SAID RING AND SAID RIB HAVING AN INNER DIAMETER GREATER THAN THE INNER DIAMETER OF SAID RING, SAID RIB HAVING A RADIALLY EXTENDING FACE, AND A GROOVE IN SAID FACE EXTENDING BETWEEN THE INNER AND OUTER EDGES THEREOF.
Claim 2
Dependent Claim
126 words
A SEALING RING OF RESILIENT MATERIAL FOR USE IN A CONFINED ANNULAR RECESS, SAID SEALING RING HAVING A WALL DEFINING AN ANNULAR CHAMBER, SAID WALL HAVING AN ANNULAR GAP ON AN AXIALLY FACING SIDE OF SAID SEALING RING, THE RADIALLY INNER EDGE OF SAID WALL ADJACENT SAID GAP BEING FORMED WITH AN ANNULAR RIB OF GREATER AXIAL AND RADIAL THICKNESS THAN THE REMAINDER OF SAID WALL, SAID REMAINDER OF SAID WALL BEING OF SUBSTANTIALLY UNIFORM THICKNESS, SAID RIB HAVING AN OUTER DIAMETER LESS THAN THE OUTER DIAMETER OF SAID RING AND SAID RIB HAVING AN INNER DIAMETER GREATER THAN THE INNER DIAMETER OF SAID RING, SAID RIB HAVING A RADIALLY EXTENDING FACE, AND A GROOVE IN SAID FACE EXTENDING BETWEEN THE INNER AND OUTER EDGES THEREOF.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |