Patent US3112933A successfully refreshed from Google Patents.
US3112933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless sealing ring
Assignee: Individual
•
Filing: 1959-07-20
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Granted: 1963-12-03
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Merkel Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:50
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/328; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AS AN ARTICLE OF MANUFACTURE A SEALING RING COMPRISING AN ANNULAR CORE MEMBER AND AN INTEGRAL ONE-PIECE ENDLESS SHAPED SLEEVE OF SYNTHETIC MATERIAL ELEASTICALLY ENGAGING SAID CORE MEMBER, SAID SLEEVE HAVING SUBSTANTIALLY ANNULAR CROSS-SECTIONAL CONTOUR, AND HAVING TWO LONGITUDINAL EDGE PORTIONS FREE FOR MOVEMENT RELATIVE TO EACH OTHER, SAID SLEEVE BEING UNDER A PERMANENT CONCENTRICALLY DIRECTED ELASTIC BENDING STRESS TENDING TO ROLL SAID SLEEVE INTO SAID ANNULAR CROSS SECTIONAL CONTOUR.
Claim 2
Dependent Claim
70 words
AS AN ARTICLE OF MANUFACTURE A SEALING RING COMPRISING AN ANNULAR CORE MEMBER AND AN INTEGRAL ONE-PIECE ENDLESS SHAPED SLEEVE OF SYNTHETIC MATERIAL ELEASTICALLY ENGAGING SAID CORE MEMBER, SAID SLEEVE HAVING SUBSTANTIALLY ANNULAR CROSS-SECTIONAL CONTOUR, AND HAVING TWO LONGITUDINAL EDGE PORTIONS FREE FOR MOVEMENT RELATIVE TO EACH OTHER, SAID SLEEVE BEING UNDER A PERMANENT CONCENTRICALLY DIRECTED ELASTIC BENDING STRESS TENDING TO ROLL SAID SLEEVE INTO SAID ANNULAR CROSS SECTIONAL CONTOUR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |