Patent US3082389A successfully refreshed from Google Patents.
US3082389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current transformer
Assignee: Westinghouse Electric Corp
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Filing: 1960-01-25
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Granted: 1963-03-19
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 James L Settles
- 👤 Edmond E Conner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:40
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A CURRENT TRANSFORMER COMPRISING A CLOSED LOOP MAGNETIC CORE, A SECONDARY WINDING INDUCTIVELY DISPOSED ON SAID CORE, A CASING HAVING AN APERTURE THERETHROUGH MOLDED AROUND SAID CORE AND WINDING FROM A RESILIENT, ELASTOMERIC, ELECTRICALLY INSULATING, THERMOSETTING MATERIAL, A CYLINDRICAL BUSHING HAVING AN INTERMEDIATE PORTION DISPOSED TO PASS THROUGH SAID APERTURE AND FIRST AND SECOND END PORTIONS EXTENDING LONGITUDINALLY IN EACH DIRECTION OUTWARDLY FROM SAID APERTURE, SAID BUSHING BEING MOLDED FROM A RESILIENT, ELASTOMERIC ELECTRICALLY INSULATING MATERIAL, AND CLAMPING MEANS SECURED TO SAID CASING AT EACH END THEREOF FOR APPLYING LONGITUDINAL CLAMPING FORCES TO SAID BUSHING TO HOLD SAID CASING AND SAID BUSHING IN ASSEMBLED RELATIONSHIP, SAID CLAMPING MEANS COMPRISING SPLIT CLAMPING RINGS DISPOSED TO SUBSTANTIALLY SURROUND SAID BUSHING AT EACH END OF SAID CASING ADJACENT TO SAID OPENING AND TO BEAR LONGITUDINALLY AGAINST THE INTERMEDIATE PORTION OF SAID BUSHING.
Claim 2
Dependent Claim
139 words
A CURRENT TRANSFORMER COMPRISING A CLOSED LOOP MAGNETIC CORE, A SECONDARY WINDING INDUCTIVELY DISPOSED ON SAID CORE, A CASING HAVING AN APERTURE THERETHROUGH MOLDED AROUND SAID CORE AND WINDING FROM A RESILIENT, ELASTOMERIC, ELECTRICALLY INSULATING, THERMOSETTING MATERIAL, A CYLINDRICAL BUSHING HAVING AN INTERMEDIATE PORTION DISPOSED TO PASS THROUGH SAID APERTURE AND FIRST AND SECOND END PORTIONS EXTENDING LONGITUDINALLY IN EACH DIRECTION OUTWARDLY FROM SAID APERTURE, SAID BUSHING BEING MOLDED FROM A RESILIENT, ELASTOMERIC ELECTRICALLY INSULATING MATERIAL, AND CLAMPING MEANS SECURED TO SAID CASING AT EACH END THEREOF FOR APPLYING LONGITUDINAL CLAMPING FORCES TO SAID BUSHING TO HOLD SAID CASING AND SAID BUSHING IN ASSEMBLED RELATIONSHIP, SAID CLAMPING MEANS COMPRISING SPLIT CLAMPING RINGS DISPOSED TO SUBSTANTIALLY SURROUND SAID BUSHING AT EACH END OF SAID CASING ADJACENT TO SAID OPENING AND TO BEAR LONGITUDINALLY AGAINST THE INTERMEDIATE PORTION OF SAID BUSHING.
References Cited (Backward Citations)
US2929037A
Cited
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 |