US3406443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing an enlarged end on a member
Assignee: Reynolds Metals Co
•
Filing: 1963-08-28
•
Granted: 1968-10-22
•
Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Ridder Ernst J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:43
CPC Classifications
B; B21; B21J; B21J5/00; B21J5/06; B21J5/08; Y; Y10; Y10S; Y10S72/00; Y10S72/70; Y10T; Y10T403/00; Y10T403/55; Y10T403/556; Y10T403/57; Y10T403/5741
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD FOR PROVIDING AN ENLARGED END OF A ROD COMPRISING THE STEPS OF: (A) PLACING SAID ROD HAVING A GIVEN DIAMETER IN A CHAMBER, (B) DISPOSING A HOLLOW BILLET AROUND AN END OF SAID ROD AND WITHIN SAID CHAMBER, (C) HEATING THE END OF SAID ROD AND SAID BILLET WITHIN SAID CHAMBER, (D) AXIALLY IMPACTING ADJACENT ENDS OF SAID BILLET AND SAID ROD TO PRESSURE WELD SAID BILLET TO SAID ROD END TO PROVIDE AN ENLARGED END ON SAID ROD WHILE SUPPORTING SAID BILLET AND SAID ROD SO AS TO PREVENT EXTRUSION, (E) PLACING SAID ENLARGED HEATED END IN AN EXTRUDING APPARATUS, (F) AND THEREAFTER EXTRUDING AT LEAST PART OF THE INNER PORTION OF SAID ENLARGED HEATED END THROUGH A DIE MEANS HAVING AN EXTRUSION APERTURE LARGER THAN SAID GIVEN DIAMETER OF SAID ROD TO REDUCE AND ELONGATE SAID ENLARGED END TO THE DESIRED DIMENSIONS.
Claim 2
Independent Claim
146 words
A METHOD FOR PROVIDING AN ENLARGED END OF A ROD COMPRISING THE STEPS OF: (A) PLACING SAID ROD HAVING A GIVEN DIAMETER IN A CHAMBER, (B) DISPOSING A HOLLOW BILLET AROUND AN END OF SAID ROD AND WITHIN SAID CHAMBER, (C) HEATING THE END OF SAID ROD AND SAID BILLET WITHIN SAID CHAMBER, (D) AXIALLY IMPACTING ADJACENT ENDS OF SAID BILLET AND SAID ROD TO PRESSURE WELD SAID BILLET TO SAID ROD END TO PROVIDE AN ENLARGED END ON SAID ROD WHILE SUPPORTING SAID BILLET AND SAID ROD SO AS TO PREVENT EXTRUSION, (E) PLACING SAID ENLARGED HEATED END IN AN EXTRUDING APPARATUS, (F) AND THEREAFTER EXTRUDING AT LEAST PART OF THE INNER PORTION OF SAID ENLARGED HEATED END THROUGH A DIE MEANS HAVING AN EXTRUSION APERTURE LARGER THAN SAID GIVEN DIAMETER OF SAID ROD TO REDUCE AND ELONGATE SAID ENLARGED END TO THE DESIRED DIMENSIONS.
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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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |