US3260095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for extruding tubes from solid billets
Assignee: Atlantic Richfield Co
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Filing: 1964-12-04
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Granted: 1966-07-12
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Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 George F Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:51
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/08; B21C23/085; B21C23/21; B21C23/217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
APPARATUS FOR EXTRUDING TUBES FROM SOLID BILLETS COMPRISING: (A) A BILLET CHAMBER, (B) A DIE POSITIONED AT ONE END OF SAID BILLET CHAMBER, (C) AN EXTRUSION RAM MOUNTED ADJACENT THE OPPOSITE END OF SAID BILLET CHAMBER, SAID RAM HAVING AN AXIAL BORE EXTENDING COMPLETELY THERETHROUGH, (D) FIRST HYDRAULIC DRIVE MEANS CONNECTED TO SAID EXTRUSION RAM FOR MOVING SAID RAM AXIALLY INTO AND OUT OF SAID BILLET CHAMBER, (E) A ROTATABLE PIERCING MANDREL SLIDABLE WITHIN THE BORE IN SAID EXTRUSION RAM AND EXTENSIBLE THEREFROM AND HAVING A MANDREL HEAD OF SUBSTANTIALLY CIRCULAR CROSS SECTION, (F) A PIERCING MANDREL STEM CONNECTED TO ONE END OF SAID MANDREL AND EXTENSIBLE THEREFROM AWAY FROM THE BILLET CHAMBER,
Claim 2
Dependent Claim
113 words
APPARATUS FOR EXTRUDING TUBES FROM SOLID BILLETS COMPRISING: (A) A BILLET CHAMBER, (B) A DIE POSITIONED AT ONE END OF SAID BILLET CHAMBER, (C) AN EXTRUSION RAM MOUNTED ADJACENT THE OPPOSITE END OF SAID BILLET CHAMBER, SAID RAM HAVING AN AXIAL BORE EXTENDING COMPLETELY THERETHROUGH, (D) FIRST HYDRAULIC DRIVE MEANS CONNECTED TO SAID EXTRUSION RAM FOR MOVING SAID RAM AXIALLY INTO AND OUT OF SAID BILLET CHAMBER, (E) A ROTATABLE PIERCING MANDREL SLIDABLE WITHIN THE BORE IN SAID EXTRUSION RAM AND EXTENSIBLE THEREFROM AND HAVING A MANDREL HEAD OF SUBSTANTIALLY CIRCULAR CROSS SECTION, (F) A PIERCING MANDREL STEM CONNECTED TO ONE END OF SAID MANDREL AND EXTENSIBLE THEREFROM AWAY FROM THE BILLET CHAMBER,
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |