US3301576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flanged joint
Assignee: Centre de Recherches de Pont a Mousson
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Filing: 1964-11-23
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Granted: 1967-01-31
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Vigneron Pierre Paul Camille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FLANGED JOINT BETWEEN TWO RIGID PIPE ELEMENTS, SAID JOINT COMPRISING IN COMBINATION: A MALE END PORTION RIGID WITH ONE OF SAID PIPE ELEMENTS, A FEMALE END PORTION RIGID WITH THE OTHER OF SAID PIPE ELEMENTS AND HAVING AN ENTRANCE END, SAID MALE PORTION HAVING AN OUTER CYLINDRICAL CENTERING FACE AND AN OUTER FRUSTOCONICAL SEALING FACE ADJACENT SAID CENTERING FACE, AND SAID FEMALE PORTION HAVING AN INNER CYLINDRICAL CENTERING FACE AND AN INNER FRUSTOCONICAL SEALING FACE ADJACENT SAID INNER CENTERING FACE, SAID INNER AND OUTER FRUSTOCONICAL FACES BEING IN SEALINGTIGHT CONTACT AND HAVING THE SAME TAPER, AN OUTER FLANGE RIGID WITH SAID MALE PORTION AND AXIALLY SET BACK FROM THE MAJOR PART OF SAID TWO ADJACENT OUTER FACES, AN OUTER FRUSTOCONICAL WEDGING FACE ON SAID FEMALE PORTION AND HAVING A TAPER OF SUBSTANTIALLY 10* INCLUDED ANGLE DIVERGENT TOWARDS SAID ENTRANCE END, A DETACHABLE RING ENGAGED ON SAID FEMALE PORTION AND HAVING A FRUSTOCONICAL INNER
Claim 2
Dependent Claim
154 words
A FLANGED JOINT BETWEEN TWO RIGID PIPE ELEMENTS, SAID JOINT COMPRISING IN COMBINATION: A MALE END PORTION RIGID WITH ONE OF SAID PIPE ELEMENTS, A FEMALE END PORTION RIGID WITH THE OTHER OF SAID PIPE ELEMENTS AND HAVING AN ENTRANCE END, SAID MALE PORTION HAVING AN OUTER CYLINDRICAL CENTERING FACE AND AN OUTER FRUSTOCONICAL SEALING FACE ADJACENT SAID CENTERING FACE, AND SAID FEMALE PORTION HAVING AN INNER CYLINDRICAL CENTERING FACE AND AN INNER FRUSTOCONICAL SEALING FACE ADJACENT SAID INNER CENTERING FACE, SAID INNER AND OUTER FRUSTOCONICAL FACES BEING IN SEALINGTIGHT CONTACT AND HAVING THE SAME TAPER, AN OUTER FLANGE RIGID WITH SAID MALE PORTION AND AXIALLY SET BACK FROM THE MAJOR PART OF SAID TWO ADJACENT OUTER FACES, AN OUTER FRUSTOCONICAL WEDGING FACE ON SAID FEMALE PORTION AND HAVING A TAPER OF SUBSTANTIALLY 10* INCLUDED ANGLE DIVERGENT TOWARDS SAID ENTRANCE END, A DETACHABLE RING ENGAGED ON SAID FEMALE PORTION AND HAVING A FRUSTOCONICAL INNER
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |