US3173283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for loading extrusion presses
Assignee: Individual
•
Filing: 1960-12-27
•
Granted: 1965-03-16
•
Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Vogtmann Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:04
CPC Classifications
B; B21; B21C; B21C33/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
APPARATUS FOR LOADING A METAL INGOT INTO A RECEIVING CHAMBER OF AN EXTRUSION PRESS COMPRISING A MOVABLY MOUNTED ELECTRICAL INDUCTION COIL HAVING A PLURALITY OF WINDINGS, MEANS FOR INSERTING A METAL INGOT INTO SAID INDUCTION COIL, MEANS FOR ENERGIZING AT LEAST A FIRST WINDING IN SAID COIL TO HEAT SAID INGOT, MEANS FOR MOVING SAID INDUCTION COIL CONTAINING SAID HEATED INGOT INTO SAID EXTRUSION PRESS IN AXIAL ALIGNMENT WITH THE RECEIVING CHAMBER, MEANS FOR EXERTING A PROPELLING FORCE ON SAID INGO TO FLOAT SAID INGOT INTO SAID RECEIVING CHAMBER, SAID FORCE EXERTING MEANS INCLUDING THE MEANS FOR ENERGIZING SAID FIRST WINDING AND AN ADDITIONAL WINDING TO PRODUCE IN A KNOWN MANNER A MAGNETIC FIELD ORIENTED ASYMMETRICALLY RELATIVE TO SAID INGOT.
Claim 2
Dependent Claim
120 words
APPARATUS FOR LOADING A METAL INGOT INTO A RECEIVING CHAMBER OF AN EXTRUSION PRESS COMPRISING A MOVABLY MOUNTED ELECTRICAL INDUCTION COIL HAVING A PLURALITY OF WINDINGS, MEANS FOR INSERTING A METAL INGOT INTO SAID INDUCTION COIL, MEANS FOR ENERGIZING AT LEAST A FIRST WINDING IN SAID COIL TO HEAT SAID INGOT, MEANS FOR MOVING SAID INDUCTION COIL CONTAINING SAID HEATED INGOT INTO SAID EXTRUSION PRESS IN AXIAL ALIGNMENT WITH THE RECEIVING CHAMBER, MEANS FOR EXERTING A PROPELLING FORCE ON SAID INGO TO FLOAT SAID INGOT INTO SAID RECEIVING CHAMBER, SAID FORCE EXERTING MEANS INCLUDING THE MEANS FOR ENERGIZING SAID FIRST WINDING AND AN ADDITIONAL WINDING TO PRODUCE IN A KNOWN MANNER A MAGNETIC FIELD ORIENTED ASYMMETRICALLY RELATIVE TO SAID INGOT.
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |