US3135519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasketed joints for ceramic pipe and method and apparatus for forming same
Assignee: W S DICKEY CLAY MANUFACTURING Co
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Filing: 1960-04-18
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Granted: 1964-06-02
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer R Ligon
- 👤 George E Pitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:57
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/02; F16L21/03; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PIPE JOINT COMPRISING, A PAIR OF PIPE SECTIONS HAVING INTERFITTING BELL AND SPIGOT ENDS, A CIRCUMFERENTIAL BAND OF FOAMED RESINOUS MATERIAL BONDED AND CURED ON THE INTERIOR PERIPHERY OF THE BELL END IN ADHERED RELATION THEREWITH, A COLLAR OF FOAMED RESINOUS MATERIAL BONDED AND CURED ON THE OUTER PERIPHERY OF SAID SPIGOT END IN ADHERED RELATION THEREWITH, SAID COLLAR AND SAID BAND EACH HAVING AN OUTER SURFACE, A SEALING RING OF COMPRESSIBLE MATERIAL HAVING AN INNER AND OUTER PERIPHERAL SURFACE, AT LEAST ONE ANNULAR RIB INTEGRAL WITH ONE OF SAID SURFACES OF SAID SEALING RING AND EXTENDING RADIALLY OUTWARDLY AND CIRCUMFERENTIALLY OF SAID ONE SURFACE, SAID ANNULAR RIB HAVING SIDES DIVERGING OUTWARDLY FROM SAID SEALING RING IN A GENERAL AXIAL DIRECTION FROM SAID SEALING RING ONE SURFACE, AT LEAST ONE BEAD EXTENDING RADIALLY OUTWARDLY FROM THE OTHER SURFACE OF SAID SEALING
Claim 2
Dependent Claim
142 words
A PIPE JOINT COMPRISING, A PAIR OF PIPE SECTIONS HAVING INTERFITTING BELL AND SPIGOT ENDS, A CIRCUMFERENTIAL BAND OF FOAMED RESINOUS MATERIAL BONDED AND CURED ON THE INTERIOR PERIPHERY OF THE BELL END IN ADHERED RELATION THEREWITH, A COLLAR OF FOAMED RESINOUS MATERIAL BONDED AND CURED ON THE OUTER PERIPHERY OF SAID SPIGOT END IN ADHERED RELATION THEREWITH, SAID COLLAR AND SAID BAND EACH HAVING AN OUTER SURFACE, A SEALING RING OF COMPRESSIBLE MATERIAL HAVING AN INNER AND OUTER PERIPHERAL SURFACE, AT LEAST ONE ANNULAR RIB INTEGRAL WITH ONE OF SAID SURFACES OF SAID SEALING RING AND EXTENDING RADIALLY OUTWARDLY AND CIRCUMFERENTIALLY OF SAID ONE SURFACE, SAID ANNULAR RIB HAVING SIDES DIVERGING OUTWARDLY FROM SAID SEALING RING IN A GENERAL AXIAL DIRECTION FROM SAID SEALING RING ONE SURFACE, AT LEAST ONE BEAD EXTENDING RADIALLY OUTWARDLY FROM THE OTHER SURFACE OF SAID SEALING
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |