US3789169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handle interlock arrangement for a pair of electric circuit breakers
Assignee: Schneider Electric USA Inc
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Filing: 1972-10-12
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Granted: 1974-01-29
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Expires: 1992-10-12
Abstract
Abstract Two manually-operable circuit breakers are mounted side by side in reversely positioned relationship and are staggered lengthwise to align the handles. The aligned handles are connected by a handle tie member to prevent both handles from being in the ON position simultaneously.
Inventors
- 👤 T Yazvac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:26
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
An assembly comprising a pair of identical electric circuit breakers each having an elongated molded case and an operating handle pivotally mounted in the case, extending outwardly thereof, and having an outer end portion movable toward one end of the case to an ON position and toward an opposite end of the case to an OFF position, the circuit breakers being mounted sideby-side with their operating handles aligned transversely of the cases and being reversely positioned endwise with respect to each other to effect turning of one circuit breaker ON and the other circuit breaker OFF when the outer end portions of both operating handles are moved together in the same direction, and handle tie means rigidly connecting the outer end portions of the operating handles to each other for insuring movement thereof together as a unit in the same direction between their respective ON and OFF positions.
Claim 2
Dependent Claim
148 words
An assembly comprising a pair of identical electric circuit breakers each having an elongated molded case and an operating handle pivotally mounted in the case, extending outwardly thereof, and having an outer end portion movable toward one end of the case to an ON position and toward an opposite end of the case to an OFF position, the circuit breakers being mounted sideby-side with their operating handles aligned transversely of the cases and being reversely positioned endwise with respect to each other to effect turning of one circuit breaker ON and the other circuit breaker OFF when the outer end portions of both operating handles are moved together in the same direction, and handle tie means rigidly connecting the outer end portions of the operating handles to each other for insuring movement thereof together as a unit in the same direction between their respective ON and OFF positions.
Claim 3
Dependent Claim
40 words
An assembly as claimed in claim 1 wherein the operating handle of each circuit breaker is off-center longitudinally of the casing and the circuit breakers are longitudinally staggered to effect the alignment of their operating handles transversely of the cases.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |