US3279803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face lined seals
Assignee: Chicago Rawhide Manufacturing Co Inc
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Filing: 1962-11-30
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Granted: 1966-10-18
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Stephen A Sekulich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3464; F16J15/348; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
AN ANNULAR SEAL FOR MOUNTING BETWEEN A PAIR OF PARTS AT LEAST ONE OF WHICH ROTATES RELATIVE TO THE OTHER, SAID SEAL COMPRISING A SEALING MEMBER INCLUDING A BODY PORTION AND SEALING FACE PORTION FOR RUNNING SEALING CONTACT WITH ONE OF SAID PARTS, SAID BODY PORTION BEING FORMED FROM RESILIENT MATERIAL, SAID SEALING FACE PORTION BEING FORMED FROM A DISC-LIKE LINING OF RELATIVELY HARD BUT FLEXIBLE SEALING MATERIAL OVERLYING A FACE OF SAID BODY PORTION AND RESILIENTLY BACKED UP THEREBY MEANS MOUNTING SAID SEALING FACE PORTION AGAINST SUBSTANTIAL RADIAL AND AXIAL MOVEMENT RELATIVE TO SAID BODY PORTION, SAID SEALING FACE PORTION BEING CIRCUMFERENTIALLY INCLINED IN AN AXIAL DIRECTION AWAY FROM SAID BODY PORTION AND PRESENTING A PROJECTING CIRCUMFERENTIALLY CONTINUOUS EDGE AREA OF SUSTANTIALLY LINE SEALING CONTACT WITH SAID ONE PART TO MINIMIZE HEAT AND FRICTION, SAID FACE OF SAID BODY PORTION AT LEAST SUBSTANTIALLY FULLY OVERLYING AND BACKING UP SAID SEALING FACE PORTION WITH SAID BODY PORTION AT LEAST SLIGHTLY COEXTENSIVELY OVEREXTENDING SAID CONTINUOUS EDGE AREA THEREOF BEYOND SAID EDGE AREA, AND MEANS FOR MOUNTING SAID SEALING MEMBER ON THE OTHER OF SAID PARTS.
Claim 2
Dependent Claim
184 words
AN ANNULAR SEAL FOR MOUNTING BETWEEN A PAIR OF PARTS AT LEAST ONE OF WHICH ROTATES RELATIVE TO THE OTHER, SAID SEAL COMPRISING A SEALING MEMBER INCLUDING A BODY PORTION AND SEALING FACE PORTION FOR RUNNING SEALING CONTACT WITH ONE OF SAID PARTS, SAID BODY PORTION BEING FORMED FROM RESILIENT MATERIAL, SAID SEALING FACE PORTION BEING FORMED FROM A DISC-LIKE LINING OF RELATIVELY HARD BUT FLEXIBLE SEALING MATERIAL OVERLYING A FACE OF SAID BODY PORTION AND RESILIENTLY BACKED UP THEREBY MEANS MOUNTING SAID SEALING FACE PORTION AGAINST SUBSTANTIAL RADIAL AND AXIAL MOVEMENT RELATIVE TO SAID BODY PORTION, SAID SEALING FACE PORTION BEING CIRCUMFERENTIALLY INCLINED IN AN AXIAL DIRECTION AWAY FROM SAID BODY PORTION AND PRESENTING A PROJECTING CIRCUMFERENTIALLY CONTINUOUS EDGE AREA OF SUSTANTIALLY LINE SEALING CONTACT WITH SAID ONE PART TO MINIMIZE HEAT AND FRICTION, SAID FACE OF SAID BODY PORTION AT LEAST SUBSTANTIALLY FULLY OVERLYING AND BACKING UP SAID SEALING FACE PORTION WITH SAID BODY PORTION AT LEAST SLIGHTLY COEXTENSIVELY OVEREXTENDING SAID CONTINUOUS EDGE AREA THEREOF BEYOND SAID EDGE AREA, AND MEANS FOR MOUNTING SAID SEALING MEMBER ON THE OTHER OF SAID PARTS.
References Cited (Backward Citations)
US2240252A
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US2365046A
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US2509461A
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |