US3085315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing insulating barrier for stationary induction apparatus
Assignee: McGraw Edison Co
•
Filing: 1957-07-15
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Granted: 1963-04-16
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Expires: 1977-07-15
Abstract
No abstract record available.
Inventors
- 👤 Melvin L Manning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/125; H01B; H01B3/00; H01B3/18; H01B3/48; H01F27/00; H01F27/28; H01F27/32; H01F27/322; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN THE METHOD OF CONSTRUCTING A COIL ASSEMBLY OF HIGH HEAT RESISTANCE FOR A HIGH TEMPERATURE ELECTRICAL TRANSFORMERS, THE STEPS OF WINDING A CYLINDRICAL FIRST ELECTRICAL COIL, FORMING AT LEAST PARTIALLY CURED SILICONE RESIN IMPREGNATED SHEETS HAVING AN INORGANIC FILLER AND SILICONE RUBBER SHEETS HAVING AN INORGANIC FILLER INTO AN INSULATING BARRIER OF CONCENTRIC, RADIALLY STAGGERED SILICONE RESIN IMPREGNATED AND SILICONE RUBBER TUBES SUPPORTED ON AND SURROUNDING SAID FIRST COIL, WINDING A SECOND ELECTRICAL COIL SUPPORTED ON AND CONCENTRIC WITH SAID BARRIER, IMPREGNATING SAID COILS AND SAID BARRIER WITH A SILICONE VARNISH, AND HEATING SAID COILS AND SAID BARRIER, WHEREBY SAID COILS AND SAID TUBES ARE MECHANICALLY BOUND TOGETHER AND THE MECHANICAL AND DIELECTRIC STRENGTH OF SAID BARRIR IS MATERIALLY INCREASED..
Claim 2
Dependent Claim
121 words
IN THE METHOD OF CONSTRUCTING A COIL ASSEMBLY OF HIGH HEAT RESISTANCE FOR A HIGH TEMPERATURE ELECTRICAL TRANSFORMERS, THE STEPS OF WINDING A CYLINDRICAL FIRST ELECTRICAL COIL, FORMING AT LEAST PARTIALLY CURED SILICONE RESIN IMPREGNATED SHEETS HAVING AN INORGANIC FILLER AND SILICONE RUBBER SHEETS HAVING AN INORGANIC FILLER INTO AN INSULATING BARRIER OF CONCENTRIC, RADIALLY STAGGERED SILICONE RESIN IMPREGNATED AND SILICONE RUBBER TUBES SUPPORTED ON AND SURROUNDING SAID FIRST COIL, WINDING A SECOND ELECTRICAL COIL SUPPORTED ON AND CONCENTRIC WITH SAID BARRIER, IMPREGNATING SAID COILS AND SAID BARRIER WITH A SILICONE VARNISH, AND HEATING SAID COILS AND SAID BARRIER, WHEREBY SAID COILS AND SAID TUBES ARE MECHANICALLY BOUND TOGETHER AND THE MECHANICAL AND DIELECTRIC STRENGTH OF SAID BARRIR IS MATERIALLY INCREASED..
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |