Patent US2707718A successfully refreshed from Google Patents.
US2707718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction pump for casting molten metals
Assignee: Ajax Engineering Corp
•
Filing: 1948-05-26
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Granted: 1955-05-03
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Expires: 1968-05-26
Abstract
No abstract record available.
Inventors
- 👤 Tama Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:53
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/06; B; B22; B22D; B22D17/00; B22D17/20; B22D17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN INSTALLATION FOR THE SERIES PRODUCTION OF MOLD CASTINGS COMPRISING A FRAME STRUCTURE, A MOLTEN METAL HOLDING CHAMBER APPROXIMATELY TRIANGULAR IN VERTICAL CROSS-SECTION SUPPORTED BY SAID FRAME STRUCTURE, TWO OPPOSITE LATERAL WALLS DOWNWARDLY INCLINED TOWARDS EACH OTHER AND TWO OPPOSITE END WALLS ENCLOSING SAID METAL HOLDING CHAMBER, AND INDUCTOR UNIT ATTACHED TO THE OUTSIDE OF AN INCLINED LATERAL WALL, A SECONDARY MELTING LOOP, LOOP AND A PRIMARY TRANSFORMER ASSEMBLY IN SAID INDUCTOR UNIT AND TREADING SAID SECONDARY MELTING LOOP, A REFRACTORY TUBULAR POURING SPOUT INCLINED RELATIVE TO A HORIZONTAL PLANE, LOCATED IN SAID METAL HOLDING CHAMBER AND EXTENDING WITH ITS INNER END INTO SAID MELTING LOOP AND WITH ITS OUTER DISCHARGE END FROM SAID CHAMBER.
Claim 2
Dependent Claim
115 words
AN INSTALLATION FOR THE SERIES PRODUCTION OF MOLD CASTINGS COMPRISING A FRAME STRUCTURE, A MOLTEN METAL HOLDING CHAMBER APPROXIMATELY TRIANGULAR IN VERTICAL CROSS-SECTION SUPPORTED BY SAID FRAME STRUCTURE, TWO OPPOSITE LATERAL WALLS DOWNWARDLY INCLINED TOWARDS EACH OTHER AND TWO OPPOSITE END WALLS ENCLOSING SAID METAL HOLDING CHAMBER, AND INDUCTOR UNIT ATTACHED TO THE OUTSIDE OF AN INCLINED LATERAL WALL, A SECONDARY MELTING LOOP, LOOP AND A PRIMARY TRANSFORMER ASSEMBLY IN SAID INDUCTOR UNIT AND TREADING SAID SECONDARY MELTING LOOP, A REFRACTORY TUBULAR POURING SPOUT INCLINED RELATIVE TO A HORIZONTAL PLANE, LOCATED IN SAID METAL HOLDING CHAMBER AND EXTENDING WITH ITS INNER END INTO SAID MELTING LOOP AND WITH ITS OUTER DISCHARGE END FROM SAID CHAMBER.
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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) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |