Patent US3248511A successfully refreshed from Google Patents.
US3248511A
Expired / Lapsed
US
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Terminals and improved handle for circuit breakers
Assignee: Heinemann Electric Co
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Filing: 1965-10-21
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Granted: 1966-04-26
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Heilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:22
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/08; H01H9/00; H01H9/30; H01H9/44; H01H9/446; H01H21/00; H01H21/02; H01H21/04; H01H21/08; H01H21/085
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
184 words
A TERMINAL STRUCTURE FOR A CIRCUIT BREAKER HAVING AN OVERLOAD SENSING DEVICED AND A METAL CASE COMPRISING AN INSULATOR SECURED TO THE CASE OF THE CIRCUIT BREAKER, A CYLINDRICAL SHUNT CONDUCTOR SLEEVE SECURED TO AND EXTENDING THROUGH SAID INSULATOR, INTO SAID CASE AND BEING ELECTRICALLY CONNECTED INSIDE SAID CASE TO SAID OVERLOAD SENSING DEVICE AND A CYLINDRICAL STUD SECURED TO SAID CYLINDRICAL SHUNT CONDUCTOR SLEEVE, SAID CYLINDIRCAL STUD HAVING MEANS TO RECEIVE AND SECURELY HOLD AN EXTERNAL CONDUCTOR IN ELECTRICAL CONDUCTING RELATIONSHIP WITH SAID CYLINDRICAL SHUNT CONDUCTOR SLEEVE, SAID CYLINDRICAL SHUNT CONDUCTOR SLEEVE BEING FORMED FOM A MATERIAL OF HIGH ELECTRICAL CONDUCTIVITY RELATIVE TO SAID CYLINDRICAL STUD, SAID CYLINDRICAL STUD BEING FORMED FROM A MATERIAL OF HIGH MECHANICAL STRENGTH RELATIVE TO SAID CYLINDRICAL SHUNT CONDUCTOR SLEEVE, SAID CYLINDRICAL SHUNT CONDUCTOR SLEEVE HAVING AN END PORTION WITHIN SAID CASE AND AN OPPOSITE END PORTION OUTSIDE OF SAID CASE WITH WHICH SAID EXTERNAL CONDUCTOR IS CONNECTABLE IN ELECTRICAL CONDUCTING RELATIONSHIP, THE END PORTION OUTSIDE OF SAID CASE RECEIVING PART OF SAID CYLINDRICAL STUD, SAID CLYINDRICAL SHUNT CONDUCTOR SLEEVE BEING MECHANICALLY AND ELECTRICALLY SECURED TO SAID STUD.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |