US3742313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single wire control of rccb or relay
Assignee: Bendix Corp
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Filing: 1970-06-11
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Granted: 1973-06-26
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Expires: 1990-06-11
Abstract
Abstract A circuit having single-wire control for operating a remote controlled circuit breaker with trip and reset coils, comprising switching means arranged to connect the trip or reset coil to a power source in response to a trip or reset signal applied to the single-wire control to energize the trip or reset coil for operating the circuit breaker accordingly.
Inventors
- 👤 W Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/021; H02H7/00; H02H7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A circuit having single-wire control for operating a relay with trip and reset coils, comprising switching means connected to the trip and reset coils and to the single wire control, means for applying trip and reset signals to the single wire control for operating the switching means to energize the trip and reset coils accordingly for operating the relay, and fault sensing means for providing an automatic trip signal to a second switching means responsive thereto and connected to the trip coil switching means for operating the trip coil switching means, the second switching means being connected to the single wire control and preventing operation of the reset coil switching means while an automatic trip signal is present.
Claim 2
Dependent Claim
118 words
A circuit having single-wire control for operating a relay with trip and reset coils, comprising switching means connected to the trip and reset coils and to the single wire control, means for applying trip and reset signals to the single wire control for operating the switching means to energize the trip and reset coils accordingly for operating the relay, and fault sensing means for providing an automatic trip signal to a second switching means responsive thereto and connected to the trip coil switching means for operating the trip coil switching means, the second switching means being connected to the single wire control and preventing operation of the reset coil switching means while an automatic trip signal is present.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |