Patent US1777546A successfully refreshed from Google Patents.
Patent US3319702A successfully refreshed from Google Patents.
US3319702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die casting machine
Assignee: Union Carbide Corp
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Filing: 1963-11-01
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Granted: 1967-05-16
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Hartwig Jurgen
- 👤 Jr Victor Mandorf
- 👤 Crescenzo F Fulgenzi
- 👤 Robert H Norris
- 👤 Maynard W Roisen
- 👤 Peter A Lerch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:07
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/02; B22D17/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
THE COMBINATION OF A DIE CASTING MACHINE FOR CASTING LIGHTWEIGHT, HIGH MELTING POINT DIE CASTING ALLOYS INCLUDING A HOLDING FURNACE HAVING A POT CONTAINING MOLTEN METAL TO BE CAST, AND A GOOSENECK SUSPENDED FROM A YOKE INTO SAID POT, SAID GOOSENECK HAVING A CAVITY AND A CONNECTING PASSAGE COMMUNICATING WITH A DIE CAVITY, A SHOT CYLINDER ASSEMBLY DISPOSED WITHIN SAID CAVITY OF SAID GOOSENECK AND COMPRISING A CYLINDER HAVING A CAVITY THEREIN AND AT LEAST ONE INTAKE APERTURE, A PISTON ASSEMBLY RECIPROCALLY MOUNTED IN SAID CAVITY OF SAID CYLINDER AND COMPRISING A STUD HAVING A CYLINDRICALLY SHAPED SLEEVE MEMBER FIXEDLY POSITIONED TO SAID STUD, MEANS RECIPROCATING SAID PISTON ASSEMBLY IN SAID CAVITY WHEREBY THE UPWARD STROKE OF SAID PISTON ASSEMBLY OPENS SAID INTAKE APERTURE ALLOWING SAID MOLTEN METAL TO FILL SAID CAVITY OF SAID CYLINDER AND THE DOWNWARD STROKE CLOSES SAID INTAKE APERTURE FORCING SAID MOLTEN METAL FROM SAID CAVITY THROUGH SAID PASSAGE OF SAID GOOSENECK AND INTO A
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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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |