US3341894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flaring plastic pipe ends
Assignee: Phillips Petroleum Co
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Filing: 1963-11-20
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Granted: 1967-09-19
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Expires: 1983-11-20
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Flaming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:10
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A FLARING TOOL FOR ORMING A FLANGE ON THE END OF A THERMOPLASTIC PIPE COMPRISING AN ANNULARLY EXPANDABLE MEANS ADAPTED TO BE INSERTED IN THE END OF SAID THERMOPLASTIC PIPE AND EXPANDED AGAINST THE INTERIOR OF SAID THERMOPLASTIC PIPE; A THREADED SHAFT SECURED TO SAID ANNULARLY EXPANDABLE MEANS AND EXTENDING BEYOND THE END OF SAID PIPE WHEN THE EXPANDABLE MEANS IS INSERTED IN THE END OF THE PIPE; MEANS TO EXPAND THE EXPANDABLE MEANS AGAINST THE INTERIOR OF SAID PIPE; A FLARING PLUG HAVING A FIRST END ADAPTED TO FIT INTO SAID PIPE AND GRADUALLY INCREASING IN DIAMETER TO FORM A SECOND END OF THE PLUG; A PASSAGEWY THROUGH THE LONGITUDINAL AXIS OF SAID PLUG TO ALLOW SAID PLUG TO PASS FREELY OVER SAID THREADED SHAFT; HEATING MEANS IN SAID PLUG; WRENCH MEANS HAVING A THREADED OPENING THERETHROUGH TO MATE WITH THE THREADS OF SAID THREADED SHAFT; AND MEANS TO PREVENT ROTATION OF SAID PLUG WHEN SAID WRENCH IS THREADED ONTO SAID THREADED SHAFT SO AS TO FORCE SAID PLUG INTO THE END OF SAID THERMOPLASTIC PIPE.
Claim 2
Dependent Claim
177 words
A FLARING TOOL FOR ORMING A FLANGE ON THE END OF A THERMOPLASTIC PIPE COMPRISING AN ANNULARLY EXPANDABLE MEANS ADAPTED TO BE INSERTED IN THE END OF SAID THERMOPLASTIC PIPE AND EXPANDED AGAINST THE INTERIOR OF SAID THERMOPLASTIC PIPE; A THREADED SHAFT SECURED TO SAID ANNULARLY EXPANDABLE MEANS AND EXTENDING BEYOND THE END OF SAID PIPE WHEN THE EXPANDABLE MEANS IS INSERTED IN THE END OF THE PIPE; MEANS TO EXPAND THE EXPANDABLE MEANS AGAINST THE INTERIOR OF SAID PIPE; A FLARING PLUG HAVING A FIRST END ADAPTED TO FIT INTO SAID PIPE AND GRADUALLY INCREASING IN DIAMETER TO FORM A SECOND END OF THE PLUG; A PASSAGEWY THROUGH THE LONGITUDINAL AXIS OF SAID PLUG TO ALLOW SAID PLUG TO PASS FREELY OVER SAID THREADED SHAFT; HEATING MEANS IN SAID PLUG; WRENCH MEANS HAVING A THREADED OPENING THERETHROUGH TO MATE WITH THE THREADS OF SAID THREADED SHAFT; AND MEANS TO PREVENT ROTATION OF SAID PLUG WHEN SAID WRENCH IS THREADED ONTO SAID THREADED SHAFT SO AS TO FORCE SAID PLUG INTO THE END OF SAID THERMOPLASTIC PIPE.
References Cited (Backward Citations)
US2823418A
Cited
US2779996A
Cited
FR1112223A
Cited
US2725597A
Cited
US3013310A
Cited
US3142868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |