US3173059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballast with thermal cut-out
Assignee: Advance Transformer Co
•
Filing: 1962-05-28
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Granted: 1965-03-09
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Godfrey W Stake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:07
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/46; H01; H01F; H01F27/00; H01F27/40; H01F27/402; H01F27/406; Y; Y10; Y10S; Y10S174/00; Y10S174/02; Y10S315/00; Y10S315/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN COMBINATION WITH A BALLASTING STRUCTURE IN WHICH THERE IS AN ELONGATE TRANSFORMER INCLUDING A PLURALITY OF WINDINGS ARRANGED ALONG THE LENGTH OF AN IRON CORE, SAID WINDINGS INCLUDING AT LEAST A CENTRALLY LOCATED PRIMARY WINDING ADAPTED TO BE CONNECTED BY AN A.C. SOURCE, A PLURALITY OF REMOTELY SITUATED SECONDARY WINDINGS INDUCTIVELY COUPLED TO SAID PRIMARY WINDING, AND SAID BALLASTING STRUCTURE BEING DISPOSED IN A METAL CANISTER; A THERMAL CUT-OUT DEVICE BEING CONNECTED IN SERIES WITH SAID PRIMARY WINDING, A FLEXIBLE METAL HEAT CONDUCTING MEMBER OF SUFFICIENT AREA TO OVERLAY ONE FACE OF SAID WINDINGS, SAID HEAT CONDUCTING MEMBER SURROUNDING SAID CUT-OUT DEVICE TO CONDUCT HEAT GENERATED BY SAID REMOTELY SITUATED SECONDARY WINDINGS TO THE VICINITY OF SAID CENTRALLY
Claim 2
Dependent Claim
119 words
IN COMBINATION WITH A BALLASTING STRUCTURE IN WHICH THERE IS AN ELONGATE TRANSFORMER INCLUDING A PLURALITY OF WINDINGS ARRANGED ALONG THE LENGTH OF AN IRON CORE, SAID WINDINGS INCLUDING AT LEAST A CENTRALLY LOCATED PRIMARY WINDING ADAPTED TO BE CONNECTED BY AN A.C. SOURCE, A PLURALITY OF REMOTELY SITUATED SECONDARY WINDINGS INDUCTIVELY COUPLED TO SAID PRIMARY WINDING, AND SAID BALLASTING STRUCTURE BEING DISPOSED IN A METAL CANISTER; A THERMAL CUT-OUT DEVICE BEING CONNECTED IN SERIES WITH SAID PRIMARY WINDING, A FLEXIBLE METAL HEAT CONDUCTING MEMBER OF SUFFICIENT AREA TO OVERLAY ONE FACE OF SAID WINDINGS, SAID HEAT CONDUCTING MEMBER SURROUNDING SAID CUT-OUT DEVICE TO CONDUCT HEAT GENERATED BY SAID REMOTELY SITUATED SECONDARY WINDINGS TO THE VICINITY OF SAID CENTRALLY
References Cited (Backward Citations)
US2558293A
Cited
US3116437A
Cited
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 |