Patent US1871166A successfully refreshed from Google Patents.
Patent US3173061A successfully refreshed from Google Patents.
US3173061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled semi-conductor rectifier assembly
Assignee: Maschinenfabrik Oerlikon AG
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Filing: 1961-09-01
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Granted: 1965-03-09
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Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Storsand Bjarne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:07
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H10; H10W; H10W90/00; H01F27/408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A SEMI-CONDUCTOR RECTIFIER INSTALLATION COMPRISING: (A) A RECTIFIER TRANSFORMER HAVING A CORE AND A SERIES OF WINDINGS MOUNTED ON SAID CORE; (B) A CASING COMPLETELY ENCLOSING SAID TRANSFORMER, SAID CASING BEING FILLED WITH A LIQUID COOLANT SUCH AS OIL; (C) A CIRCULATORY CIRCUIT FOR SAID LIQUID INCLUDING AN INLET AND AN OUTLET PIPE CONNECTED TO SAID CASING, A PUMP FOR CIRCULATING SAID LIQUID, A COOLING ELEMENT OVER WHICH SAID LIQUID IS PASSED, AND METAL PIPES THROUGH WHICH SAID LIQUID FLOWS AND ARRANGED DIRECTLY ALONG THE OUTER SURFACE OF THE WALLS OF SAID CASING; (D) SEMI-CONDUCTOR DIODES FASTENED DIRECTLY TO SAID METAL PIPES; (E) ELECTRICAL CONNECTORS BETWEEN SAID TRANSFORMER WINDINGS WITHIN SAID CASING AND SAID DIODES OUTSIDE SAID CASING, AND (F) BUSHINGS IN THE WALLS OF SAID CASING FOR PROVIDING LEAK-TIGHT PASSAGEWAYS FOR SAID CONNECTIONS.
Claim 2
Dependent Claim
134 words
A SEMI-CONDUCTOR RECTIFIER INSTALLATION COMPRISING: (A) A RECTIFIER TRANSFORMER HAVING A CORE AND A SERIES OF WINDINGS MOUNTED ON SAID CORE; (B) A CASING COMPLETELY ENCLOSING SAID TRANSFORMER, SAID CASING BEING FILLED WITH A LIQUID COOLANT SUCH AS OIL; (C) A CIRCULATORY CIRCUIT FOR SAID LIQUID INCLUDING AN INLET AND AN OUTLET PIPE CONNECTED TO SAID CASING, A PUMP FOR CIRCULATING SAID LIQUID, A COOLING ELEMENT OVER WHICH SAID LIQUID IS PASSED, AND METAL PIPES THROUGH WHICH SAID LIQUID FLOWS AND ARRANGED DIRECTLY ALONG THE OUTER SURFACE OF THE WALLS OF SAID CASING; (D) SEMI-CONDUCTOR DIODES FASTENED DIRECTLY TO SAID METAL PIPES; (E) ELECTRICAL CONNECTORS BETWEEN SAID TRANSFORMER WINDINGS WITHIN SAID CASING AND SAID DIODES OUTSIDE SAID CASING, AND (F) BUSHINGS IN THE WALLS OF SAID CASING FOR PROVIDING LEAK-TIGHT PASSAGEWAYS FOR SAID CONNECTIONS.
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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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |