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Patent US3292218A successfully refreshed from Google Patents.
US3292218A
Expired / Lapsed
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Automatic metal injection system
Assignee: J A KOZMA Co
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Filing: 1965-04-29
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Granted: 1966-12-20
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Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph A Kozma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:33
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/02; B22D17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A METAL INJECTION SYSTEM FOR DELIVERYING MOLTEN METAL FROM A FURNANCE TO A DIE CASTING MACHINE OR THE LIKE COMPRISING, (A) A RESERVIOR MEMBER ADAPED TO BBE CARRIED IN THE FURNANCE BENEATH THE LEVEL OF MOLTEN METAL THEREIN AND HAVING A CHAMBER AND INTAKE PORTS COMMUNICATING THEREWITH, (B) A PISTON AXIALLY RECIPROCALLY SLIDABLY CARRIED IN SAID CHAMBER, (C) A DELIVERY TUBE CONNECTING SAID CHAMBER WITH THE RECEIVING CHAMBER OF THE DIE CASTING MACHINE OR THE LIKE, (D) MEANS FOR AXIALLY MOVING SAID PISTON IN SAID CHAMBER FROM AN INITIAL POSITION, AND (E) MEANS ASSOCIATED WITH SAID PISTON AND OPERABLE UPON A SELECTIVELY VARIABLE DISPLACEMENT OF SAID PISTON FROM SAID INITIAL POSITION TO RENDER SAID MOVNG MEANS INEFFECTIVE SO THAT A SELECTIVELY VARIABLE SHOT OF MOLTEN METAL IS DELIVERED FROM SAID RESERVOIR TO THE RECEIVING CHAMBER OF SAID MACHINE.
Claim 2
Dependent Claim
138 words
A METAL INJECTION SYSTEM FOR DELIVERYING MOLTEN METAL FROM A FURNANCE TO A DIE CASTING MACHINE OR THE LIKE COMPRISING, (A) A RESERVIOR MEMBER ADAPED TO BBE CARRIED IN THE FURNANCE BENEATH THE LEVEL OF MOLTEN METAL THEREIN AND HAVING A CHAMBER AND INTAKE PORTS COMMUNICATING THEREWITH, (B) A PISTON AXIALLY RECIPROCALLY SLIDABLY CARRIED IN SAID CHAMBER, (C) A DELIVERY TUBE CONNECTING SAID CHAMBER WITH THE RECEIVING CHAMBER OF THE DIE CASTING MACHINE OR THE LIKE, (D) MEANS FOR AXIALLY MOVING SAID PISTON IN SAID CHAMBER FROM AN INITIAL POSITION, AND (E) MEANS ASSOCIATED WITH SAID PISTON AND OPERABLE UPON A SELECTIVELY VARIABLE DISPLACEMENT OF SAID PISTON FROM SAID INITIAL POSITION TO RENDER SAID MOVNG MEANS INEFFECTIVE SO THAT A SELECTIVELY VARIABLE SHOT OF MOLTEN METAL IS DELIVERED FROM SAID RESERVOIR TO THE RECEIVING CHAMBER OF SAID MACHINE.
References Cited (Backward Citations)
US2243835A
Cited
US3121926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |