Patent US3082133A successfully refreshed from Google Patents.
US3082133A
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High temperature electrical insulating tape
Assignee: Westinghouse Electric Corp
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Filing: 1957-12-13
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Granted: 1963-03-19
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Expires: 1977-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hofmann
- 👤 Charles H Vondracek
- 👤 Dean C Westervelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:16
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/02; H01B3/06; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN ELECTRICAL INSULATING TAPE ADAPTED FOR USE OF TEMPERATURES AS HIGH AS 500* C., SAID TAPE HAVING BEEN DERIVED BY COATING A FIBROUS INORGANIC BACKING SHEET ON AT LEAST ONE SIDE THEREOF WITH A LIQUID SUSPENSION COMPRISING, (A) FROM 90 TO 20 PARTS BY WEIGHT OF AN AQUEOUS MIXTURE CONSISTING OF (A) FROM 10% TO 40% BY WEIGHT OF ALUMINUM PHOSPHATE, (B) FROM 10% TO 40% BY WEIGHT OF PHOSPHORIC ACID, AND (C) THE BALANCE WATER, AND (B) FROM 10 TO 80 PARTS BY WEIGHT OF A SOLID INORGANIC PARTICULATE FILLER COMPRISING OXIDES AND SILICATES OF METALS SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM, CADMIUM, ALUMINUM, ZINC, LEAD, AND TITANIUM, AND DRYING THE APPLIED COATING BY MAINTAINING IT AT A TEMPERATURE OF FROM 60* C. TO 100* C. FOR A PERIOD OF TIME SUFFICIENT TO REDUCE THE MOISTURE CONTENT OF THE COATING TO ABOUT 10% TO 20% BY WEIGHT WHEREBYY IT BECOMES TACKY.
Claim 2
Dependent Claim
154 words
AN ELECTRICAL INSULATING TAPE ADAPTED FOR USE OF TEMPERATURES AS HIGH AS 500* C., SAID TAPE HAVING BEEN DERIVED BY COATING A FIBROUS INORGANIC BACKING SHEET ON AT LEAST ONE SIDE THEREOF WITH A LIQUID SUSPENSION COMPRISING, (A) FROM 90 TO 20 PARTS BY WEIGHT OF AN AQUEOUS MIXTURE CONSISTING OF (A) FROM 10% TO 40% BY WEIGHT OF ALUMINUM PHOSPHATE, (B) FROM 10% TO 40% BY WEIGHT OF PHOSPHORIC ACID, AND (C) THE BALANCE WATER, AND (B) FROM 10 TO 80 PARTS BY WEIGHT OF A SOLID INORGANIC PARTICULATE FILLER COMPRISING OXIDES AND SILICATES OF METALS SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM, CADMIUM, ALUMINUM, ZINC, LEAD, AND TITANIUM, AND DRYING THE APPLIED COATING BY MAINTAINING IT AT A TEMPERATURE OF FROM 60* C. TO 100* C. FOR A PERIOD OF TIME SUFFICIENT TO REDUCE THE MOISTURE CONTENT OF THE COATING TO ABOUT 10% TO 20% BY WEIGHT WHEREBYY IT BECOMES TACKY.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |