Patent US3197545A successfully refreshed from Google Patents.
US3197545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Case for ballast type transformers
Assignee: Esquire Inc
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Filing: 1962-12-10
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Granted: 1965-07-27
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Moore Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:23
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02; H01F27/022; Y; Y10; Y10S; Y10S174/00; Y10S174/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A BALLAST TYPE TRANSFORMER, A HOLLOW CASE HAVING AN OPENING IN ITS OPPOSITE ENDS, MEANS ABOUT EACH OPENING FOR CONNECTION TO A PIPE, MEANS DIVIDING THE CASE INTO A TRANSFORMER CHAMBER ADJACENT ONE END AND A WIRING CHAMBER ADJACENT THE OTHER END AND CONNECTING WITH THE OPENING THEREIN, A TRANSFORMER POSITIONED ENTIRELY WITHIN SAID TRANSFORMER CHAMBER, CONDUIT MEANS EXTENDING THROUGH THE TRANSFORMER CHAMBER AND CONNECTING THE OPENING IN SAID ONE END OF THE CASE WITH THE WIRING CHAMBER TO BYPASS THE TRANSFORMER CHAMBER, SAID DIVIDING MEANS HAVING AN OPENING THEREIN PROVIDING COMMUNICATION BETWEEN THE TRANSFORMER AND WIRING CHAMBERS, AND AN INSPECTION PLATE PROVIDING ACCESS TO THE WIRING CHAMBER.
Claim 2
Dependent Claim
109 words
IN A BALLAST TYPE TRANSFORMER, A HOLLOW CASE HAVING AN OPENING IN ITS OPPOSITE ENDS, MEANS ABOUT EACH OPENING FOR CONNECTION TO A PIPE, MEANS DIVIDING THE CASE INTO A TRANSFORMER CHAMBER ADJACENT ONE END AND A WIRING CHAMBER ADJACENT THE OTHER END AND CONNECTING WITH THE OPENING THEREIN, A TRANSFORMER POSITIONED ENTIRELY WITHIN SAID TRANSFORMER CHAMBER, CONDUIT MEANS EXTENDING THROUGH THE TRANSFORMER CHAMBER AND CONNECTING THE OPENING IN SAID ONE END OF THE CASE WITH THE WIRING CHAMBER TO BYPASS THE TRANSFORMER CHAMBER, SAID DIVIDING MEANS HAVING AN OPENING THEREIN PROVIDING COMMUNICATION BETWEEN THE TRANSFORMER AND WIRING CHAMBERS, AND AN INSPECTION PLATE PROVIDING ACCESS TO THE WIRING CHAMBER.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |