US3195084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus having foil wound windings and metallic duct formers
Assignee: Westinghouse Electric Corp
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Filing: 1962-05-23
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Granted: 1965-07-13
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:46
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/32; H01F27/322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A METAL DUCT FORMER FOR CIRCULATING A COOLING FLUID THROUGH FOIL WOUND ELECTRICAL COILS, SAID DUCT FORMER COMPRISING A FLAT SHEET WITH A PLURALITY OF FLAT STRIPS CONNECTED TO SAID FLAT SHEET BY STRUCTURAL WEBS, SAID WEBS BEING SUBSTANTIALLY AT RIGHT ANGLES TO BOTH SAID FLAT SHEET AND TO SAID FLAT STRIPS, SAID FLAT STRIPS BEING SEPARATED BY AIR GAPS FROM ADJACENT FLAT STRIPS.
Claim 2
Dependent Claim
64 words
A METAL DUCT FORMER FOR CIRCULATING A COOLING FLUID THROUGH FOIL WOUND ELECTRICAL COILS, SAID DUCT FORMER COMPRISING A FLAT SHEET WITH A PLURALITY OF FLAT STRIPS CONNECTED TO SAID FLAT SHEET BY STRUCTURAL WEBS, SAID WEBS BEING SUBSTANTIALLY AT RIGHT ANGLES TO BOTH SAID FLAT SHEET AND TO SAID FLAT STRIPS, SAID FLAT STRIPS BEING SEPARATED BY AIR GAPS FROM ADJACENT FLAT STRIPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |