US3073442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for thermally separating the stump from the extrusion and for straightening the latter in a metal rod or pipe press
Assignee: Hydraulik GmbH
•
Filing: 1959-12-16
•
Granted: 1963-01-15
•
Expires: 1979-12-16
Abstract
No abstract record available.
Inventors
- 👤 Muller Ernst
- 👤 Seulen Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
B; B21; B21C; B21C35/00; B21C35/02; B21C35/03; B21C35/04; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN AN EXTRUSION PRESS HAVING A WORK HOLDER AND A DIE MOUNTED FOR RELATIVE MOVEMENT, A RAMWAY PROVIDED IN SAID WORK HOLDER AND A RAM OPERABLE IN SAID WORK HOLDER TO EXTRUDE A BILLET POSITIONED THEREIN THROUGH SAID DIE, THAT IMPROVEMENT WHICH COMPRISES INDUCTION HEATING MEANS OPERABLE TO HEAT THE EXTRUSION ADJACENT THE STUMP OF THE BILLET REMAINING IN SAID RAMWAY, MEANS TO
Claim 2
Dependent Claim
63 words
IN AN EXTRUSION PRESS HAVING A WORK HOLDER AND A DIE MOUNTED FOR RELATIVE MOVEMENT, A RAMWAY PROVIDED IN SAID WORK HOLDER AND A RAM OPERABLE IN SAID WORK HOLDER TO EXTRUDE A BILLET POSITIONED THEREIN THROUGH SAID DIE, THAT IMPROVEMENT WHICH COMPRISES INDUCTION HEATING MEANS OPERABLE TO HEAT THE EXTRUSION ADJACENT THE STUMP OF THE BILLET REMAINING IN SAID RAMWAY, MEANS TO
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |