US3358166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine brush
Assignee: Airco Inc
•
Filing: 1965-07-09
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Granted: 1967-12-12
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Valery A Nolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:57
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/18; H01R39/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE COMBINATION WITH AN ENCLOSED DYNAMOELECTRIC MACHINE HAVING ROTATING COMMUTATING MEANS AND SILICONEINSULATED WINDINGS WHICH GIVE OFF ENCLOSURE-CONTAMINATING SILICONE VAPORS, OF AN ELECTROGRAPHITIC BRUSH ADAPTED FOR BEARING ON SAID COMMUTATING MEANS AND FOR CONDUCTING ELECTRIC CURRENT IN COOPERATION WITH SAID WINDINGS, SAID BRUSH HAVING A COOPER-GRAPHITE INSERT THEREIN AT THE FACE OF SAID BRUSH BEARING ON SAID COMMUTATING MEANS.
Claim 2
Dependent Claim
59 words
THE COMBINATION WITH AN ENCLOSED DYNAMOELECTRIC MACHINE HAVING ROTATING COMMUTATING MEANS AND SILICONEINSULATED WINDINGS WHICH GIVE OFF ENCLOSURE-CONTAMINATING SILICONE VAPORS, OF AN ELECTROGRAPHITIC BRUSH ADAPTED FOR BEARING ON SAID COMMUTATING MEANS AND FOR CONDUCTING ELECTRIC CURRENT IN COOPERATION WITH SAID WINDINGS, SAID BRUSH HAVING A COOPER-GRAPHITE INSERT THEREIN AT THE FACE OF SAID BRUSH BEARING ON SAID COMMUTATING MEANS.
References Cited (Backward Citations)
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Cited
GB325287A
Cited
US2105038A
Cited
US2172045A
Cited
US2736830A
Cited
US2855528A
Cited
US2748300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |