US3305786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rate of change threshold detector
Assignee: Motorola Solutions Inc
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Filing: 1963-02-18
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Granted: 1967-02-21
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
G; G08; G08B; G08B26/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A DEVIATION DETECTOR SYSTEM FOR INDICATING DEVIATIONS IN THE DURATIONS OF CYCLICALLY REPEATED TIME INTERVALS, SAID SYSTEM INCLUDING IN COMBINATION: FIRST CIRCUIT MEANS FOR PRODUCING A PULSE INDICATIVE OF THE END OF EACH SUCH TIME INTERVALS; SECOND CIRCUIT MEANS COUPLED TO SAID FIRST CIRCUIT MEANS FOR PRODUCING A LOWER LIMIT PULSE AND AN UPPER LIMIT PULSE DURING SUCCEEDING ONES OF SAID TIME INTERVALS AND TIME-SPACED FROM ONE ANOTHER BY A PREDETERMINED AMOUNT; AND CONTROL CIRCUITRY COUPLED TO SAID FIRST AND SECOND CIRCUIT MEANS FOR PRODUCING AN ALARM PULSE WHENEVER SAID FIRST MENTIONED PULSE OCCURS BEFORE SAID LOWER LIMIT PULSE AND WHENEVER SAID FIRST MENTIONED PULSE OCCURS AFTER SAID UPPER LIMIT PULSE.
Claim 2
Dependent Claim
111 words
A DEVIATION DETECTOR SYSTEM FOR INDICATING DEVIATIONS IN THE DURATIONS OF CYCLICALLY REPEATED TIME INTERVALS, SAID SYSTEM INCLUDING IN COMBINATION: FIRST CIRCUIT MEANS FOR PRODUCING A PULSE INDICATIVE OF THE END OF EACH SUCH TIME INTERVALS; SECOND CIRCUIT MEANS COUPLED TO SAID FIRST CIRCUIT MEANS FOR PRODUCING A LOWER LIMIT PULSE AND AN UPPER LIMIT PULSE DURING SUCCEEDING ONES OF SAID TIME INTERVALS AND TIME-SPACED FROM ONE ANOTHER BY A PREDETERMINED AMOUNT; AND CONTROL CIRCUITRY COUPLED TO SAID FIRST AND SECOND CIRCUIT MEANS FOR PRODUCING AN ALARM PULSE WHENEVER SAID FIRST MENTIONED PULSE OCCURS BEFORE SAID LOWER LIMIT PULSE AND WHENEVER SAID FIRST MENTIONED PULSE OCCURS AFTER SAID UPPER LIMIT PULSE.
References Cited (Backward Citations)
US3108648A
Cited
US3116458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |