Patent US3402274A successfully refreshed from Google Patents.
US3402274A
Expired / Lapsed
US
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Contact structure for a power circuit breaker
Assignee: Schneider Electric USA Inc
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Filing: 1965-10-01
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Granted: 1968-09-17
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Bould Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/226; H01H9/00; H01H9/30; H01H9/38; H01H9/383; H01H1/58; H01H1/5833; H01H2001/228; H01H71/00; H01H71/10; H01H71/12; H01H71/24; H01H71/2472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A CONTACT STRUCTURE FOR A LOW-VOLTAGE CIRCUIT BREAKER, SAID CONTACT STRUCTURE COMPRISING A STATIONARY ARCING CONTACT, A STATIONARY MAIN CONTACT MEANS, A MAIN SHAFT, A FRAME PIVOTED ON SAID SHAFT AND CARRYING A MAIN CONTACT PIVOT PIN, A PLURALITY OF MAIN CONTACT ARMS PIVOTED ON SAID MAIN CONTACT PIVOT PIN IN AXIALLY SPACED RELATION THEREALONG, AN OPERATING MEMBER PIVOTED ON SAID MAIN CONTACT PIVOT PIN AND CARRYING AN ARCING CONTACT PIVOT PIN, A MOVABLE ARCING CONTACT ARM PIVOTED ON SAID ARCING CONTACT PIVOT PIN, A PLURALITY OF CONTACT PRESSURE FINGERS PIVOTED ON SAID MAIN SHAFT IN AXIALLY SPACED RELATION THEREALONG, A PLURALITY OF SPRINGS OPERATIVELY INTERPOSED BETWEEN SAID FINGERS AND SAID FRAME AND BIASING SAID FINGERS WITH RESPECT TO SAID FRAME, SAID ARCHING CONTACT ARM HAVING
Claim 2
Dependent Claim
126 words
A CONTACT STRUCTURE FOR A LOW-VOLTAGE CIRCUIT BREAKER, SAID CONTACT STRUCTURE COMPRISING A STATIONARY ARCING CONTACT, A STATIONARY MAIN CONTACT MEANS, A MAIN SHAFT, A FRAME PIVOTED ON SAID SHAFT AND CARRYING A MAIN CONTACT PIVOT PIN, A PLURALITY OF MAIN CONTACT ARMS PIVOTED ON SAID MAIN CONTACT PIVOT PIN IN AXIALLY SPACED RELATION THEREALONG, AN OPERATING MEMBER PIVOTED ON SAID MAIN CONTACT PIVOT PIN AND CARRYING AN ARCING CONTACT PIVOT PIN, A MOVABLE ARCING CONTACT ARM PIVOTED ON SAID ARCING CONTACT PIVOT PIN, A PLURALITY OF CONTACT PRESSURE FINGERS PIVOTED ON SAID MAIN SHAFT IN AXIALLY SPACED RELATION THEREALONG, A PLURALITY OF SPRINGS OPERATIVELY INTERPOSED BETWEEN SAID FINGERS AND SAID FRAME AND BIASING SAID FINGERS WITH RESPECT TO SAID FRAME, SAID ARCHING CONTACT ARM HAVING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |