US3291636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for insulating electrical elements with polyester plastisols and such elements
Assignee: ABB Inc USA
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Filing: 1962-11-23
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Granted: 1966-12-13
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 David H Reighter
- 👤 Robert L Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:42
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08K3/18; C08K3/20; C08K3/22; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C09; C09D; C09D167/00; C09D167/06; H01B3/42; C08L2205/00; C08L2205/02; C08L67/00; C08L67/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12771; Y10T428/12861; Y10T428/12896; Y10T428/12903; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A METHOD OF INSULATING AN ELECTRICAL ELEMENT COMPRISING HEATING THE ELEMENT, DIPPING THE SAME IN A LIQUID INSULATING COMPOSITION COMPRISING: (A) A POLYESTER RESIN SYSTEM COMPRISING A MIXTURE OF FROM 50 TO 75 PARTS BY WEIGHT OF A RIGID POLYESTER RESIN HAVING, WHEN CURED, AN ELASTIC MODULUS OF AT LEAST 4.0X**105 P.S.I. AND FROM 50 TO 25 PARTS BY WEIGHT OF A FLEXIBLE POLYESTER RESIN HAVING, WHEN CURED, AND ELECTRIC MODULUS OF NO MORE THAN 1.0X**150 P.S.I. AND, PER 100 PARTS BY WEIGHT OF THE POLYESTER RESIN MIXTURE, (B) FROM 15 TO 40 PARTS BY WEIGHT OF ANTIMONY TRIOXIDE, (C) FROM 25 TO 60 PARTS BY WEIGHT OF A POLYVINYL HALIDE PLASTISOL AND, (B) UP TO 300 PARTS BY WEIGHT OF A FILLER, REMOVING THE COATED ELEMENT FROM THE LIQUID DIP AND CURING THE COATING FORMED THEREON TO FORM A FLAME RETARDANT INSULATING LAYER ON A PORTION OF THE ELECTRICAL ELEMENT.
Claim 2
Independent Claim
151 words
A METHOD OF INSULATING AN ELECTRICAL ELEMENT COMPRISING HEATING THE ELEMENT, DIPPING THE SAME IN A LIQUID INSULATING COMPOSITION COMPRISING: (A) A POLYESTER RESIN SYSTEM COMPRISING A MIXTURE OF FROM 50 TO 75 PARTS BY WEIGHT OF A RIGID POLYESTER RESIN HAVING, WHEN CURED, AN ELASTIC MODULUS OF AT LEAST 4.0X**105 P.S.I. AND FROM 50 TO 25 PARTS BY WEIGHT OF A FLEXIBLE POLYESTER RESIN HAVING, WHEN CURED, AND ELECTRIC MODULUS OF NO MORE THAN 1.0X**150 P.S.I. AND, PER 100 PARTS BY WEIGHT OF THE POLYESTER RESIN MIXTURE, (B) FROM 15 TO 40 PARTS BY WEIGHT OF ANTIMONY TRIOXIDE, (C) FROM 25 TO 60 PARTS BY WEIGHT OF A POLYVINYL HALIDE PLASTISOL AND, (B) UP TO 300 PARTS BY WEIGHT OF A FILLER, REMOVING THE COATED ELEMENT FROM THE LIQUID DIP AND CURING THE COATING FORMED THEREON TO FORM A FLAME RETARDANT INSULATING LAYER ON A PORTION OF THE ELECTRICAL ELEMENT.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |