US3170997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlock for switch enclosures
Assignee: ITE Circuit Breaker Co
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Filing: 1962-01-16
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Granted: 1965-02-23
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Expires: 1982-01-16
Abstract
No abstract record available.
Inventors
- 👤 John A Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:25
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
INTERLOCK MEANS FOR A CIRCUIT PROTECTIVE DEVICE HOUSING HAVING A HINGED COVER MEMBER AND A MANUALLY OPERABLE SWITCH HANDLE ASSEMBLY MOVABLE BETWEEN AN ON AND AN OFF POSITION COMPRISING AN INTERLOCK BRACKET PIVOTALLY MOUNTED TO SAID HOUSING AT A MAIN PORTION OF SAID BRACKET AND HAVING A FIRST END MECHANICALLY LINKED TO SAID HANDLE ASSEMBLY, A SECOND END OF SAID INTERLOCK BRACKET BEING FLANGED FROM THE MAIN PORTION OF THE INTERLOCK BRACKET, SAID FLANGED PORTION BEING SUBSTANTIALLY PARALLEL TO A FLAT PORTION OF SAID COVER, SAID FLANGED PORTION MEMBER HAVING A NOTCH THEREIN; FASTENING MEANS FIXED SECURED TO SAID COVER MEMBER AND POSITIONED AT A POINT ON SAID COVER MEMBER IN CLOSE PROXIMITY TO SAID INTERLOCK BRACKET FLANGE PORTION; THE END OF SAID FASTENING MEANS BEING RECEIVED BY SAID NOTCH WHEN SAID HANDLE ASSEMBLY IS IN SAID ON POSITION TO PREVENT LIFTING OF SAID HINGED COVER MEMBER TO PREVENT CONTACT WITH ELEMENTS DISPOSED WITHIN SAID CIRCUIT INTERRUPTER HOUSING; SAID FASTENING MEANS BEING DISPOSED OUTSIDE OF SAID NOTCH WHEN SAID HANDLE ASSEMBLY IS IN SAID OFF POSITION.
Claim 2
Dependent Claim
176 words
INTERLOCK MEANS FOR A CIRCUIT PROTECTIVE DEVICE HOUSING HAVING A HINGED COVER MEMBER AND A MANUALLY OPERABLE SWITCH HANDLE ASSEMBLY MOVABLE BETWEEN AN ON AND AN OFF POSITION COMPRISING AN INTERLOCK BRACKET PIVOTALLY MOUNTED TO SAID HOUSING AT A MAIN PORTION OF SAID BRACKET AND HAVING A FIRST END MECHANICALLY LINKED TO SAID HANDLE ASSEMBLY, A SECOND END OF SAID INTERLOCK BRACKET BEING FLANGED FROM THE MAIN PORTION OF THE INTERLOCK BRACKET, SAID FLANGED PORTION BEING SUBSTANTIALLY PARALLEL TO A FLAT PORTION OF SAID COVER, SAID FLANGED PORTION MEMBER HAVING A NOTCH THEREIN; FASTENING MEANS FIXED SECURED TO SAID COVER MEMBER AND POSITIONED AT A POINT ON SAID COVER MEMBER IN CLOSE PROXIMITY TO SAID INTERLOCK BRACKET FLANGE PORTION; THE END OF SAID FASTENING MEANS BEING RECEIVED BY SAID NOTCH WHEN SAID HANDLE ASSEMBLY IS IN SAID ON POSITION TO PREVENT LIFTING OF SAID HINGED COVER MEMBER TO PREVENT CONTACT WITH ELEMENTS DISPOSED WITHIN SAID CIRCUIT INTERRUPTER HOUSING; SAID FASTENING MEANS BEING DISPOSED OUTSIDE OF SAID NOTCH WHEN SAID HANDLE ASSEMBLY IS IN SAID OFF POSITION.
References Cited (Backward Citations)
US1412242A
Cited
US2134986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |