Patent US3213232A successfully refreshed from Google Patents.
US3213232A
Expired / Lapsed
US
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Forced air-cooled thermally calibrated circuit breaker
Assignee: ITE Circuit Breaker Co
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Filing: 1963-05-09
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Granted: 1965-10-19
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Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Carl E Gryetko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:20
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A CIRCUIT BREAKER, A PAIR OF COOPERATING CONTACTS AND A MECHANISM FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM COMPRISING A MOVABLE CONTACT ARM CARRYING ONE OF SAID COOPERATING CONTACTS; TRIP MEANS OPERATIVELY CONNECTED TO SAID MOVABLE CONTACT ARM IN A MANNER SUCH THAT SAID CONTACTS CANNOT BE OPERATED INTO ENGAGEMENT WHEN SAID TRIP MEANS IS IN RELEASE POSITION; OVERLOAD SENSING MEANS RESPONSIVE TO CIRCUIT CONDITION FOR MOVING SAID TRIP MEANS TO RELEASE POSITION; COOLANT FLOW MEANS OPERATIVELY POSITIONED TO DIRECT A COOLING MEDIUM ABOUT SAID OVERLOAD SENSING MEANS, FOR SELECTIVELY VARYING THE OVERLOAD-RELEASE TIME CHARACTERISTIC OF SAID TRIP UNIT.
Claim 2
Dependent Claim
104 words
IN A CIRCUIT BREAKER, A PAIR OF COOPERATING CONTACTS AND A MECHANISM FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM COMPRISING A MOVABLE CONTACT ARM CARRYING ONE OF SAID COOPERATING CONTACTS; TRIP MEANS OPERATIVELY CONNECTED TO SAID MOVABLE CONTACT ARM IN A MANNER SUCH THAT SAID CONTACTS CANNOT BE OPERATED INTO ENGAGEMENT WHEN SAID TRIP MEANS IS IN RELEASE POSITION; OVERLOAD SENSING MEANS RESPONSIVE TO CIRCUIT CONDITION FOR MOVING SAID TRIP MEANS TO RELEASE POSITION; COOLANT FLOW MEANS OPERATIVELY POSITIONED TO DIRECT A COOLING MEDIUM ABOUT SAID OVERLOAD SENSING MEANS, FOR SELECTIVELY VARYING THE OVERLOAD-RELEASE TIME CHARACTERISTIC OF SAID TRIP UNIT.
References Cited (Backward Citations)
US2824939A
Cited
US3155802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |