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US3264013A
Expired / Lapsed
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Coupling for pipe sections
Assignee: Fibercast Co
•
Filing: 1963-09-30
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Granted: 1966-08-02
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Henry M Richardson
- 👤 Wesley S Larson
- 👤 Alfred C Alberghini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:29
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN ARTICLE OF MANUFACTURE COMPRISING, A PLASTIC PIPE, AN EXTERNAL TAPER ON AT LEAST ONE END OF SAID PIPE, A TUBULAR PIPE SHELL FITTING OVER SAID TAPERED PIPE END, THREADS ON THE EXTERIOR OF SAID SHELL, ALTERNATE RIBS AND GROOVES ON THE INTERIOR OF SAID PIPE SHELL EXTENDING LONGITUDINALLY OF THE PIPE, SAID RIBS IN ENGAGEMENT WITH SAID PIPE TO CENTER THE PIPE AND DEFINE PASSAGEWAYS BETWEEN THE PIPE AND SHELL, AN INTERNAL RING AT THE SMALL END OF SAID PIPE SHELL IN ABUTMENT WITH SAID PIPE, AN ANNULAR GROOVE IN SAID RING COMMUNICATING WITH SAID PASSAGEWAYS, AT LEAST ONE OPENING BETWEEN SAID GROOVE AND THE EXTERIOR SURFACE OF SAID RING, AND AN ADHESIVE IN SAID PASSAGEWAYS AND GROOVES SECURING SAID SHELL TO SAID PIPE.
Claim 2
Dependent Claim
125 words
AN ARTICLE OF MANUFACTURE COMPRISING, A PLASTIC PIPE, AN EXTERNAL TAPER ON AT LEAST ONE END OF SAID PIPE, A TUBULAR PIPE SHELL FITTING OVER SAID TAPERED PIPE END, THREADS ON THE EXTERIOR OF SAID SHELL, ALTERNATE RIBS AND GROOVES ON THE INTERIOR OF SAID PIPE SHELL EXTENDING LONGITUDINALLY OF THE PIPE, SAID RIBS IN ENGAGEMENT WITH SAID PIPE TO CENTER THE PIPE AND DEFINE PASSAGEWAYS BETWEEN THE PIPE AND SHELL, AN INTERNAL RING AT THE SMALL END OF SAID PIPE SHELL IN ABUTMENT WITH SAID PIPE, AN ANNULAR GROOVE IN SAID RING COMMUNICATING WITH SAID PASSAGEWAYS, AT LEAST ONE OPENING BETWEEN SAID GROOVE AND THE EXTERIOR SURFACE OF SAID RING, AND AN ADHESIVE IN SAID PASSAGEWAYS AND GROOVES SECURING SAID SHELL TO SAID PIPE.
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |