Patent US3079681A successfully refreshed from Google Patents.
US3079681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a joint
Assignee: F Fentiman and Sons Ltd
•
Filing: 1959-05-18
•
Granted: 1963-03-05
•
Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Fentiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:23
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B1/1903; B; B21; B21D; B21D39/00; B21D39/04; B21D39/044; E04B1/1909; E04B2001/1924; E04B2001/1927; E04B2001/193; E04B2001/1957; E04B2001/1966; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4933; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF FORMING A JOINT BETWEEN TWO ELEMENTS BY FLATTENING THE END OF ONE TUBULAR ELEMENT WHILE SIMULTANEOUSLY FORMING ON SAID END TRANSVERSELY EXTENDING RIBS AND RECESSES OF GRADUATED SIZE INCREASING TOWARD THE END OF THE ELEMENT BY DISPLACING MATERIAL FROM THE RECESSES AND FLOWING IT INTO THE RIBS, ALLOWING THE FLATTENED END SOME PARTIAL ELASTIC RECOVERY FROM THE FLATTENING DEFORMATION SO AS TO PRODUCE SLIGHTLY CONVEX WALLS THAT ARE SLIGHTLY SPACED APART, AND FORCING THE END OF SAID ELEMENT EDGEWAYS INTO A SECOND ELEMENT HAVING A KEYWAY WITH LATERAL DIVERGING WALLS AND CORRESPONDING RIBS AND RECESSES BUT OF A WIDTH LESS THAN THE THICKEST PART OF THE PARTIALLY RECOVERED FLATTENED END OF SAID FIRST ELEMENT.
Claim 2
Independent Claim
117 words
THE METHOD OF FORMING A JOINT BETWEEN TWO ELEMENTS BY FLATTENING THE END OF ONE TUBULAR ELEMENT WHILE SIMULTANEOUSLY FORMING ON SAID END TRANSVERSELY EXTENDING RIBS AND RECESSES OF GRADUATED SIZE INCREASING TOWARD THE END OF THE ELEMENT BY DISPLACING MATERIAL FROM THE RECESSES AND FLOWING IT INTO THE RIBS, ALLOWING THE FLATTENED END SOME PARTIAL ELASTIC RECOVERY FROM THE FLATTENING DEFORMATION SO AS TO PRODUCE SLIGHTLY CONVEX WALLS THAT ARE SLIGHTLY SPACED APART, AND FORCING THE END OF SAID ELEMENT EDGEWAYS INTO A SECOND ELEMENT HAVING A KEYWAY WITH LATERAL DIVERGING WALLS AND CORRESPONDING RIBS AND RECESSES BUT OF A WIDTH LESS THAN THE THICKEST PART OF THE PARTIALLY RECOVERED FLATTENED END OF SAID FIRST ELEMENT.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |