Patent US3215803A successfully refreshed from Google Patents.
US3215803A
Expired / Lapsed
US
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Contact structure for circuit breaker
Assignee: Allis Chalmers Corp
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Filing: 1962-12-31
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Granted: 1965-11-02
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin C Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:20
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/38; H01H9/386; H01H1/00; H01H1/50; H01H1/54; H01H1/58; H01H1/5833; H01H2001/5838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A CIRCUIT BREAKER, IN COMBINATION, A SUPPORT, A STATIONARY CONTACT ASSEMBLY COMPRISING A PAIR OF SPACED APART ELECTRICALLY CONDUCTIVE STUDS MOUNTED ON SAID SUPPORT, A MOVABLE CONTACT ASSEMBLY MOUNTED ON SAID SUPPORT AND COMPRISING A PIVOTALLY MOUNTED MAIN CONTACT AND A PIVOTALLY MOUNTED ARCING CONTACT, SAID MAIN CONTACT AND SAID ARCING CONTACT BEING RELATIVELY MOVABLE WITH RESPECT TO EACH OTHER, ELECTRICALLY CONDUCTIVE MEMBERS FRICTIONALLY ENGAGING ONE OF SAID STUDS AND SAID MAIN CONTACT AND SAID ARCING CONTACT FOR ESTABLISHING ELECTRICAL CONNECTION BETWEEN SAID CONTACTS AND SAID ONE STUD, MEANS ON SAID MAIN CONTACT AND SAID ARCING CONTACT FOR LIMITING RELATIVE MOVEMENT BETWEEN THEM, A MEMBER FOR MOVING SAID MAIN CONNTACT AND SAID ARCING CONTACT, ADJUSTABLE MENAS FOR RIGIDLY CONNECTING SAID MEMBER TO SAID MAIN CONTACT, AND BIASING MEANS CONNECTED BETWEEN SAID MEMBER AND SAID ARCING CONTACT FOR BIASING SAID ARCING CONTACT INTO PREDETERMINED POSITIONS WITH RESPECT TO SAID MAIN CONTACT.
Claim 2
Dependent Claim
151 words
IN A CIRCUIT BREAKER, IN COMBINATION, A SUPPORT, A STATIONARY CONTACT ASSEMBLY COMPRISING A PAIR OF SPACED APART ELECTRICALLY CONDUCTIVE STUDS MOUNTED ON SAID SUPPORT, A MOVABLE CONTACT ASSEMBLY MOUNTED ON SAID SUPPORT AND COMPRISING A PIVOTALLY MOUNTED MAIN CONTACT AND A PIVOTALLY MOUNTED ARCING CONTACT, SAID MAIN CONTACT AND SAID ARCING CONTACT BEING RELATIVELY MOVABLE WITH RESPECT TO EACH OTHER, ELECTRICALLY CONDUCTIVE MEMBERS FRICTIONALLY ENGAGING ONE OF SAID STUDS AND SAID MAIN CONTACT AND SAID ARCING CONTACT FOR ESTABLISHING ELECTRICAL CONNECTION BETWEEN SAID CONTACTS AND SAID ONE STUD, MEANS ON SAID MAIN CONTACT AND SAID ARCING CONTACT FOR LIMITING RELATIVE MOVEMENT BETWEEN THEM, A MEMBER FOR MOVING SAID MAIN CONNTACT AND SAID ARCING CONTACT, ADJUSTABLE MENAS FOR RIGIDLY CONNECTING SAID MEMBER TO SAID MAIN CONTACT, AND BIASING MEANS CONNECTED BETWEEN SAID MEMBER AND SAID ARCING CONTACT FOR BIASING SAID ARCING CONTACT INTO PREDETERMINED POSITIONS WITH RESPECT TO SAID MAIN CONTACT.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |