US3280282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination current limiting fuse and vacuum switch
Assignee: ABB Inc USA
•
Filing: 1965-04-02
•
Granted: 1966-10-18
•
Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Sigurd O Rodeseike
- 👤 Walter M Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H9/00; H01H9/10; H02; H02B; H02B11/00; H02B11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
INTERRUPTER MEANS COMPRISING FIRST AND SECOND TERMINALS FOR COUPLING SAID INTERRUPTER MEANS TO THE CIRCUIT BEING PROTECTED; A THIRD TERMINAL INTERMEDIATE SAID FIRST AND SECOND TERMINALS; CURRENT LIMITING FUSE MEANS COUPLED BETWEEN SAID FIRST AND THIRD TERMINALS; VACUUM SWITCH MEANS HAVING A PAIR OF COOPERATING CONTACTS COUPLED BETWEEN SAID SECOND AND THIRD TERMINALS; FIRST MEANS FOR OPERATING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS BETWEEN THE ENGAGED AND DISENGAGED POSITION COMPRISING SPRING MEANS NORMALLY BIASING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS TOWARD ONE OF SAID POSITIONS; MEANS FOR MOVING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS TOWARD THE OTHER OF SAID PORITIONS.
Claim 2
Dependent Claim
100 words
INTERRUPTER MEANS COMPRISING FIRST AND SECOND TERMINALS FOR COUPLING SAID INTERRUPTER MEANS TO THE CIRCUIT BEING PROTECTED; A THIRD TERMINAL INTERMEDIATE SAID FIRST AND SECOND TERMINALS; CURRENT LIMITING FUSE MEANS COUPLED BETWEEN SAID FIRST AND THIRD TERMINALS; VACUUM SWITCH MEANS HAVING A PAIR OF COOPERATING CONTACTS COUPLED BETWEEN SAID SECOND AND THIRD TERMINALS; FIRST MEANS FOR OPERATING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS BETWEEN THE ENGAGED AND DISENGAGED POSITION COMPRISING SPRING MEANS NORMALLY BIASING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS TOWARD ONE OF SAID POSITIONS; MEANS FOR MOVING SAID VACUUM SWITCH MEANS COOPERATING CONTACTS TOWARD THE OTHER OF SAID PORITIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |