Patent US3218086A successfully refreshed from Google Patents.
US3218086A
Expired / Lapsed
US
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Dimensionally stabilized synthetic resin sealing ring
Assignee: DONLEY PRODUCTS Inc
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Filing: 1962-03-19
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Granted: 1965-11-16
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Philip F Donley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:12
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A SEALING SYSTEM, A DIMENSIONALLY STABILIZED SEALING RING COMPRISING A SYNTHETIC RESIN ANNULUS CHARACTERIZED ON ONE OF THE TWO SIDES THEREOF BY A FLAT SEALING SURFACE DISPOSED BETWEEN THE INNER AND OUTER PERIPHERIES OF THE SEALING RING AS A WHOLE, SAID FLAT SEALING SURFACE LYING IN A PLANE EXTENDING AT RIGHT ANGLES TO THE CENTRAL AXIS OF THE SEALING RING; A HOLDING SURFACE ON ONE OF THE TWO PERIPHERIES OF THE SEALING RING, SAID HOLDING SURFACE BEING DISPOSED BETWEEN SAID FLAT SEALING SURFACE AND THE OPPOSITE SIDE OF THE ANNULUS; MEANS IN THE BODY OF THE SEALING RING ITSELF BETWEEN THE TWO SIDES THEREOF FORMING AN ANNULAR OPENING OF GENERALLY CYLINDRICAL SHAPE FOR THE RECEPTION OF A STABILIZING ELEMENT; AND, SECURELY LODGED IN SAID OPENING, A CONTINUOUS RIGID MEMBER OF GENERALLY CYLINDRICAL SHAPE THE INNER AND OUTER PERIPHERIES OF WHICH ARE OF SMALLER AND LARGER DIAMETER, RESPECTIVELY, THAN THE CORRESPONDING SURFACES OF SAID OPENING.
Claim 2
Dependent Claim
155 words
IN A SEALING SYSTEM, A DIMENSIONALLY STABILIZED SEALING RING COMPRISING A SYNTHETIC RESIN ANNULUS CHARACTERIZED ON ONE OF THE TWO SIDES THEREOF BY A FLAT SEALING SURFACE DISPOSED BETWEEN THE INNER AND OUTER PERIPHERIES OF THE SEALING RING AS A WHOLE, SAID FLAT SEALING SURFACE LYING IN A PLANE EXTENDING AT RIGHT ANGLES TO THE CENTRAL AXIS OF THE SEALING RING; A HOLDING SURFACE ON ONE OF THE TWO PERIPHERIES OF THE SEALING RING, SAID HOLDING SURFACE BEING DISPOSED BETWEEN SAID FLAT SEALING SURFACE AND THE OPPOSITE SIDE OF THE ANNULUS; MEANS IN THE BODY OF THE SEALING RING ITSELF BETWEEN THE TWO SIDES THEREOF FORMING AN ANNULAR OPENING OF GENERALLY CYLINDRICAL SHAPE FOR THE RECEPTION OF A STABILIZING ELEMENT; AND, SECURELY LODGED IN SAID OPENING, A CONTINUOUS RIGID MEMBER OF GENERALLY CYLINDRICAL SHAPE THE INNER AND OUTER PERIPHERIES OF WHICH ARE OF SMALLER AND LARGER DIAMETER, RESPECTIVELY, THAN THE CORRESPONDING SURFACES OF SAID OPENING.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |