Patent US3260974A successfully refreshed from Google Patents.
US3260974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise reducing means for electrical apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1963-09-12
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Granted: 1966-07-12
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Specht
- 👤 Gwyn N Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:34
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
ELECTRICAL INDUCTIVE APPARATUS COMPRISING A SEALED TANK HAVING SIDEWALL, TOP AND BOTTOM PORTIONS, A MAGNETIC CORE AND ELECTRICAL WINDING ASSEMBLY DISPOSED IN SAID TANK, A LIQUID COOLANT DISPOSED IN SAID TANK, THE TOP AND BOTTOM PORTIONS OF SAID TANK EXTENDING OUTWARDLY FORM THE SIDEWALL PORTIONS FOR A PREDETERMINED DISTANCE, BARRIER MEANS HAVING A PLURALITY OF SPACED WALL MEMBERS DISPOSED TO SURROUND THE SIDEWALL PORTIONS OF SAID TANK IN PREDETERMINED SPACED RELATION, THE WALL MEMBERS OF SAID BARRIER MEANS BEING CONNECTED TO THE EXTENDED TOP AND BOTTOM PORTIONS OF SAID TANK, SAID BARRIER MEANS FORMING A HOLLOW AIR CHAMBER BETWEEN SAID BARRIER MEANS AND SAID TANK FOR REDUCING THE SOUND ENERGY RADIATED BY THE ELECTRICAL INDUCTIVE APPARATUS.
Claim 2
Dependent Claim
116 words
ELECTRICAL INDUCTIVE APPARATUS COMPRISING A SEALED TANK HAVING SIDEWALL, TOP AND BOTTOM PORTIONS, A MAGNETIC CORE AND ELECTRICAL WINDING ASSEMBLY DISPOSED IN SAID TANK, A LIQUID COOLANT DISPOSED IN SAID TANK, THE TOP AND BOTTOM PORTIONS OF SAID TANK EXTENDING OUTWARDLY FORM THE SIDEWALL PORTIONS FOR A PREDETERMINED DISTANCE, BARRIER MEANS HAVING A PLURALITY OF SPACED WALL MEMBERS DISPOSED TO SURROUND THE SIDEWALL PORTIONS OF SAID TANK IN PREDETERMINED SPACED RELATION, THE WALL MEMBERS OF SAID BARRIER MEANS BEING CONNECTED TO THE EXTENDED TOP AND BOTTOM PORTIONS OF SAID TANK, SAID BARRIER MEANS FORMING A HOLLOW AIR CHAMBER BETWEEN SAID BARRIER MEANS AND SAID TANK FOR REDUCING THE SOUND ENERGY RADIATED BY THE ELECTRICAL INDUCTIVE APPARATUS.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |