US3202976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supervisory system with failure discrimination
Assignee: Scully Signal Co
•
Filing: 1959-12-03
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Granted: 1965-08-24
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Expires: 1979-12-03
Abstract
No abstract record available.
Inventors
- 👤 William G Rowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:02
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/16; F; F23; F23N; F23N5/00; F23N5/02; F23N5/022; F23N5/24; F23N5/242; G05; G05B; G05B9/00; G05B9/02; F23N2227/00; F23N2227/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN COMBINATION WITH A SYSTEM IN WHICH A SIGAL IS TO BE TRANSMITTED BETWEEN THE INPUT AND OUTPUT OF THE SYSTEM, MEANS FOR APPLYING TO THE INPUT A REPETITIVELY MODIFIED SIGNAL, MEANS CONNECTED TO THE OUTPUT FOR RESPONDING TO THE RECOVERY THEREIN OF THE REPETITIVELY MODIFIED SIGNAL AND FOR PRODUCING A PREDETERMINED OUTPUT SIGNAL CONDITION WHEN SAID MODIFIED SIGNAL IS ABSENT FROM SAID OUTPUT UPON A FAILURE IN THE SYSTEM OR A LOSS OF TRHE SIGNAL, MEANS RESPONSIVE TO THE PREDETERMINED OUTPUT SIGNAL CONDITION FOR INJECTING INTO THE INPUT A SIMULATION OF THE SAID SIGNAL, MEANS OPERABLE IN THE EVENT OF FAILURE OF SAID RESPONDING MEANS TO RESPOND TO THE SIMULATED SIGNAL FOR INDICATING A FAILURE IN THE SYSTEM, AND MEANS OPERABLE IN THE EVENT OF RESPONSE OF THE RESPONDING MEANS TO THE SIMULATED SIGNAL FOR INDICATING LOSS OF THE FIRSTMENTIONED SIGNAL.
Claim 2
Dependent Claim
142 words
IN COMBINATION WITH A SYSTEM IN WHICH A SIGAL IS TO BE TRANSMITTED BETWEEN THE INPUT AND OUTPUT OF THE SYSTEM, MEANS FOR APPLYING TO THE INPUT A REPETITIVELY MODIFIED SIGNAL, MEANS CONNECTED TO THE OUTPUT FOR RESPONDING TO THE RECOVERY THEREIN OF THE REPETITIVELY MODIFIED SIGNAL AND FOR PRODUCING A PREDETERMINED OUTPUT SIGNAL CONDITION WHEN SAID MODIFIED SIGNAL IS ABSENT FROM SAID OUTPUT UPON A FAILURE IN THE SYSTEM OR A LOSS OF TRHE SIGNAL, MEANS RESPONSIVE TO THE PREDETERMINED OUTPUT SIGNAL CONDITION FOR INJECTING INTO THE INPUT A SIMULATION OF THE SAID SIGNAL, MEANS OPERABLE IN THE EVENT OF FAILURE OF SAID RESPONDING MEANS TO RESPOND TO THE SIMULATED SIGNAL FOR INDICATING A FAILURE IN THE SYSTEM, AND MEANS OPERABLE IN THE EVENT OF RESPONSE OF THE RESPONDING MEANS TO THE SIMULATED SIGNAL FOR INDICATING LOSS OF THE FIRSTMENTIONED SIGNAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |