US3279005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of effecting the solidification of metals under gaseous pressure
Assignee: Schloemann AG
•
Filing: 1964-09-02
•
Granted: 1966-10-18
•
Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 Wehmeyer Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:04
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/02; B22D18/04; B22D27/00; B22D27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD FOR THE SOLIDIFICATION OF METAL UNDER GASEOUS PRESSURE IN A CASTING MOLD, COMPRISING THE STEPS OF: POURING THE MOLTEN METAL TO BE SOLIDIFIED INTO THE CASTING MOLD, CONVERING THE MOLTEN METAL IN THE CASTING MOLD WITH THERMALLY INSULATING LAYER, CLOSING THE MOLD, FORCING INERT GAS UNDER HIGH PRESSURE INTO THE CASTING MOLD ABOVE THE THERMALLY INSULATING LAYER, AND HEATING THE INERT GAS IN THE CASTING MOLD BY MEANS OF AN ELECTRICALLY GENERATED SOURCE OF HEAT.
Claim 2
Independent Claim
77 words
A METHOD FOR THE SOLIDIFICATION OF METAL UNDER GASEOUS PRESSURE IN A CASTING MOLD, COMPRISING THE STEPS OF: POURING THE MOLTEN METAL TO BE SOLIDIFIED INTO THE CASTING MOLD, CONVERING THE MOLTEN METAL IN THE CASTING MOLD WITH THERMALLY INSULATING LAYER, CLOSING THE MOLD, FORCING INERT GAS UNDER HIGH PRESSURE INTO THE CASTING MOLD ABOVE THE THERMALLY INSULATING LAYER, AND HEATING THE INERT GAS IN THE CASTING MOLD BY MEANS OF AN ELECTRICALLY GENERATED SOURCE OF HEAT.
References Cited (Backward Citations)
US1772490A
Cited
US2406333A
Cited
US2561062A
Cited
US2881489A
Cited
US2960736A
Cited
US3010167A
Cited
US3200455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |