US3329913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker mechanism
Assignee: Heinemann Electric Co
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Filing: 1966-01-28
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Granted: 1967-07-04
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Expires: 1986-01-28
Abstract
No abstract record available.
Inventors
- 👤 William W Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:06
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/505; H01H1/00; H01H1/62; H01H71/02; H01H71/0207; H01H71/0221; H01H71/1054; H01H71/12; H01H71/24; H01H71/2481; H01H71/34; H01H71/345; H01H71/52; H01H71/528; H01H73/00; H01H73/02; H01H73/04; H01H9/00; H01H9/30; H01H2009/305
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
174 words
IN A CIRCUIT BREAKER COMPRISING A CASE, AN AUTOMATICALLY RESETTABLE LINKAGE MECHANISM ENCLOSED BY SAID CASE BUT FOR A PART OF A HANDLE WHICH EXTENDS THROUGH SAID CASE, SAID MECHANISM INCLUDING A MOVABLE ARM CARRYING A MOVABLE CONTACT, A STATIONARY CONTACT MOUNTED WITHIN SAID CASE AND CARRIED BY A FIRST TERMINAL, SAID STATIONARY CONTACT BEING ENGAGEABLE BY SAID MOVABLE CONTACT, AN ELECTROMAGNETIC DEVICE FOR TRIPPING SAID MECHANISM ON PREDETERMINED OVERLOADS, SAID ELECTROMAGNETIC DEVICE INCLUDING A COIL CONNECTED AT ONE END TO SAID MOVABLE ARM AND AT THE OTHER END TO A SECOND TERMINAL, SAID ELECTROMAGNETIC DEVICE HAVING A MAGNETIC FRAME FORMING SPACED FIRST AND SECOND PLATES WHICH CARRY SAID MECHANISM, SAID MOVABLE ARM COMPRISING A SUBSTANTIALLY FLAT MAJOR PORTION AND A MINOR PORTION BENT AT SUBSTANTIALLY A RIGHT ANGLE TO SAID MAJOR PORTION, SAID MINOR PORTION INCLUDING A CONTACT CARRYING SECTION CENTRALLY ALIGNED WITH THE CENTRAL PLANE OF SAID MAJOR PORTION THROUGH ITS THINNEST DIMENSION, SAID MINOR PORTION INCLUDING AN INTEGRAL EXTENSION FUNCTIONING AS A HEAT SINK FOR SAID CONTACT CARRYING SECTION TOGETHER WITH
References Cited (Backward Citations)
US3056008A
Cited
US3290627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |