US3898476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for providing redundancy of key system components
Assignee: Raytheon Co
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Filing: 1973-10-11
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Granted: 1975-08-05
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Expires: 1993-10-11
Abstract
Abstract A circuit for providing redundancy of key system components simply and economically with slightly degraded performance. In normal operation, two active devices such as amplifiers supply power to a single load or to a pair of loads. Upon failure of one of the active devices, the circuit apportions the power from the remaining operational device to the load or loads for continued operation.
Inventors
- 👤 Thomas M Straus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:53
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/74; H02; H02H; H02H3/00; H02H3/02; H02H3/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A system comprising: a source for developing a first signal; first means coupled to said source for developing second and third signals in response to the first signal; second and third means coupled to said first means for respectively changing the second and third signals to fourth and fifth signals; fourth means coupled to said second means for controlling the phase relationship of the fourth signal in relation to that of the fifth signal; and a device coupled to said third and fourth means for developing a pair of output signals in response to at least one of the fourth and fifth signals.
Claim 2
Independent Claim
103 words
A system comprising: a source for developing a first signal; first means coupled to said source for developing second and third signals in response to the first signal; second and third means coupled to said first means for respectively changing the second and third signals to fourth and fifth signals; fourth means coupled to said second means for controlling the phase relationship of the fourth signal in relation to that of the fifth signal; and a device coupled to said third and fourth means for developing a pair of output signals in response to at least one of the fourth and fifth signals.
Claim 3
Dependent Claim
32 words
The system according to claim 1 wherein: each of said second and third means is an amplifier; said fourth means is a phase shifter; and said device is a three db hybrid.
Claim 4
Dependent Claim
14 words
The system according to claim 2 wherein said first means is a power splitter.
References Cited (Backward Citations)
US3659213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |