US3136834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously degassing molten metals by evacuation
Assignee: WC Heraus GmbH and Co KG
•
Filing: 1958-12-22
•
Granted: 1964-06-09
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Lorenz Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN AN APPARATUS FOR DEGASSING MOLTEN METAL BY SUBSTANTIALLY CONTINUOUS RECYCLING AND HAVING AS ELEMENTS A VACUUM DEGASSING CHAMBER, A LOWER POSITIONED CONTAINER FOR HOLDING MLTEN METAL, A RISER CONDUIT FOR CONVEYING MOLTEN METAL FROM SAID CONTAINER TO SAID CHAMBER, A DISCHARGE CONDUIT FOR DISCHARGING MOLTEN METAL FROM SAID CHAMBER INTO SAID CONTAINER AND MEANS FOR AIDING MOLTEN METAL FLOW THROUGH SAID RISER CONDIUT, THE IMPROVEMENT WHICH COMPRISES IN COMBINATION WITH SAID ELEMENTS THE ARRANGEMENT OF SAID RISER AND DISCHARGE CONDUITS AS SEPARATE AND NDIVIDUAL MEMBRS HAVING THEIR IMMERSION ENDS IN SAID CONTAINER IN LATERALLY SPACES RELA-
Claim 2
Dependent Claim
97 words
IN AN APPARATUS FOR DEGASSING MOLTEN METAL BY SUBSTANTIALLY CONTINUOUS RECYCLING AND HAVING AS ELEMENTS A VACUUM DEGASSING CHAMBER, A LOWER POSITIONED CONTAINER FOR HOLDING MLTEN METAL, A RISER CONDUIT FOR CONVEYING MOLTEN METAL FROM SAID CONTAINER TO SAID CHAMBER, A DISCHARGE CONDUIT FOR DISCHARGING MOLTEN METAL FROM SAID CHAMBER INTO SAID CONTAINER AND MEANS FOR AIDING MOLTEN METAL FLOW THROUGH SAID RISER CONDIUT, THE IMPROVEMENT WHICH COMPRISES IN COMBINATION WITH SAID ELEMENTS THE ARRANGEMENT OF SAID RISER AND DISCHARGE CONDUITS AS SEPARATE AND NDIVIDUAL MEMBRS HAVING THEIR IMMERSION ENDS IN SAID CONTAINER IN LATERALLY SPACES RELA-
References Cited (Backward Citations)
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |