US3305812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin coated hardware and tank covers for distribution transformers
Assignee: Westinghouse Electric Corp
•
Filing: 1962-12-06
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Granted: 1967-02-21
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Macchia
- 👤 George W Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:16
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/005; H01F27/00; H01F27/02; H01F27/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A DISTRIBUTION TRANSFORMER HAVING A TANK COVER AT GROUND POTENTIAL AND MEANS PROXIMATE TO THE COVER AT A HIGH POTENTIAL, THE COVER AND PROXIMATE MEANS SO DISPOSED THAT SMALL ANIMALS CAN FORM A BRIDGE BETWEEN THE COVER AND THE PROXIMATE MEANS AND BE ELECTROCUTED BY A CURRENT SURGE, THE IMPROVEMENT COMPRISING A MELT-FLOWED RESINOUS COATING OF A THICKNESS OF FROM 10 TO 30 MILS DEPOSITED ON THE COVER SO THAT THE CURRENT THROUGH AN ANIMAL BRIDGING THE COATED COVER AND THE PROXIMATE MEANS IS ONLY ENOUGH TO DRIVE THE ANIMAL FROM THE TRANSFORMER BUT NOT ENOUGH TO ELECTROCUTE THE ANIMAL.
Claim 2
Dependent Claim
101 words
IN A DISTRIBUTION TRANSFORMER HAVING A TANK COVER AT GROUND POTENTIAL AND MEANS PROXIMATE TO THE COVER AT A HIGH POTENTIAL, THE COVER AND PROXIMATE MEANS SO DISPOSED THAT SMALL ANIMALS CAN FORM A BRIDGE BETWEEN THE COVER AND THE PROXIMATE MEANS AND BE ELECTROCUTED BY A CURRENT SURGE, THE IMPROVEMENT COMPRISING A MELT-FLOWED RESINOUS COATING OF A THICKNESS OF FROM 10 TO 30 MILS DEPOSITED ON THE COVER SO THAT THE CURRENT THROUGH AN ANIMAL BRIDGING THE COATED COVER AND THE PROXIMATE MEANS IS ONLY ENOUGH TO DRIVE THE ANIMAL FROM THE TRANSFORMER BUT NOT ENOUGH TO ELECTROCUTE THE ANIMAL.
References Cited (Backward Citations)
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |