Patent US3230327A successfully refreshed from Google Patents.
US3230327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible conductor type circuit breaker for electrical machinery
Assignee: Individual
•
Filing: 1963-07-15
•
Granted: 1966-01-18
•
Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 William B Mcdowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:04
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/082; H01H; H01H35/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A CIRCUIT BREAKER COMPRISING A CANTILEVER MOUNTED ELONGAGED TUBULAR MEMBER, A GROOVE IN THE WALL OF SAID TUBULAR MEMBER FORMING A WEAKENED AREA, A BRITTLE CONDUCTOR MOUNTED IN SAID TUBULAR MEMBER IN POSITION TO STRADDLE SAID WEAKENED AREA WHEREBY BRAKING SAID TUTUBULAR MEMBER BREAKS SAID BRITTLE CONDUCTOR, SAID CONDUCTOR BEING ENCASED IN A NON-CONDUCTIVE POTTING MATERIAL HOLDING SAID BRITLE CONDUTOR OUT OF CONTACT WITH OTHER ELECTRICALLY CONDUCTING MATERIAL, AND CIRCUIT LEADS INTERCONNECTED WITH SAID BRITTLE CONDUCTOR.
References Cited (Backward Citations)
US2105286A
Cited
US1281329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |