US3176284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System responsive to plural conditions with false indication prevention
Assignee: Specialties Development Corp
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Filing: 1963-09-27
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Granted: 1965-03-30
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Roger B Jones
- 👤 Smith Raymond Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/18; G08B29/02; G08B29/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A CONDITION RESPONSIVE SYSTEM, THE COMBINATION OF CONDITION RESPONSIVE MEANS HAVING AN ELECTRICAL PROPERTY WHICH VARIES IN RESPONSE TO VARIATIONS IN CONDITION FROM A NORMAL VALUE WHEN THE CONDITION IS NORMAL TOWARD AN EXTREME ABNORMAL VALUE WHEN THE CONDITION BECOMES ABNORMAL, A FIRST SWITCHING CIRCUIT HAVING AN INPUT CONNECTED TO SAID CONDITION RESPONSIVE MEANS AND HAVING AN OUTPUT FOR PRODUCING AN OUTPUT SIGNAL A PREDETERMINED TIME INTERVAL AFTER SAID ELECTRICAL PROPERTY MOVES THROUGH A FIRST PREDETERMINED VALUE IN CHANGING FROM SAID NORMAL VALUE TOWARD SAID EXTREME ABNORMAL VALUE, SWITCH OPERATING MEANS CONNECTED TO SAID SWITCHING CIRCUIT OUTPUT TO BE ACTUATED WHEN SAID SWITCHING CIRCUIT PRODUCES SAID OUTPUT SIGNAL, INDICATION PRODUCING SWITCH MEANS UNDER THE CONTROL OF SAID SWITCH OPERATING MEANS, A SECOND SWITCHING CIRCUIT HAVING AN INPUT CONNECTED TO SAID CONDITION RESPONSIVE MEANS AND HAVING AN OUTPUT FOR PRODUCING AN OUTPUT SIGNAL WHEN SAID ELECTRICAL PROPERTY ASSUMES A SECOND PREDETERMINED VALUE
Claim 2
Dependent Claim
152 words
IN A CONDITION RESPONSIVE SYSTEM, THE COMBINATION OF CONDITION RESPONSIVE MEANS HAVING AN ELECTRICAL PROPERTY WHICH VARIES IN RESPONSE TO VARIATIONS IN CONDITION FROM A NORMAL VALUE WHEN THE CONDITION IS NORMAL TOWARD AN EXTREME ABNORMAL VALUE WHEN THE CONDITION BECOMES ABNORMAL, A FIRST SWITCHING CIRCUIT HAVING AN INPUT CONNECTED TO SAID CONDITION RESPONSIVE MEANS AND HAVING AN OUTPUT FOR PRODUCING AN OUTPUT SIGNAL A PREDETERMINED TIME INTERVAL AFTER SAID ELECTRICAL PROPERTY MOVES THROUGH A FIRST PREDETERMINED VALUE IN CHANGING FROM SAID NORMAL VALUE TOWARD SAID EXTREME ABNORMAL VALUE, SWITCH OPERATING MEANS CONNECTED TO SAID SWITCHING CIRCUIT OUTPUT TO BE ACTUATED WHEN SAID SWITCHING CIRCUIT PRODUCES SAID OUTPUT SIGNAL, INDICATION PRODUCING SWITCH MEANS UNDER THE CONTROL OF SAID SWITCH OPERATING MEANS, A SECOND SWITCHING CIRCUIT HAVING AN INPUT CONNECTED TO SAID CONDITION RESPONSIVE MEANS AND HAVING AN OUTPUT FOR PRODUCING AN OUTPUT SIGNAL WHEN SAID ELECTRICAL PROPERTY ASSUMES A SECOND PREDETERMINED VALUE
References Cited (Backward Citations)
FR1217202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |