US3275975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic detecting means
Assignee: Cleveland Technical Center Inc
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Filing: 1964-12-21
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Granted: 1966-09-27
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph W King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:01
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/50; G01S15/52; G01S15/523; G08; G08B; G08B13/00; G08B13/16; G08B13/1609; G08B13/1618; G08B13/1627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A SYSTEM FOR DETECTING THE ABSENCE OF MOVEMENT OF AN ULTRASONIC ENERGY REFLECTING BODY WITHIN A PREDETERMINED PERIOD COMPRISING: AN ULTRASONIC TRANSMITTER FOR TRANSMITTING A BEAM OF ENERGY TOWARD SAID BODY; AN ULTRASONIC DOPPLER RECEIVER INCLUDING A TRANSDUCER FOR RECEIVING ENERGY REFLECTED FROM SAID BODY; ALARM MEANS FOR INDICATING THE FAILURE OF SAID RECEIVER TO RECEIVING A DOPPLER SIGNAL FROM SAID BODY WITHIN SAID PREDETERMINED PERIOD; AND RESETTABLE TIME-OUT MEANS CONNECTED BETWEEN SAID RECEIVER AND SAID ALARM MEANS AND INCLUDING MEANS FOR ACTUATING SAID ALARM MEANS WHEN NO DOPPLER SIGNAL IS RECEIVED WITHIN SAID PREDETERMINED PERIOD.
Claim 2
Dependent Claim
97 words
IN A SYSTEM FOR DETECTING THE ABSENCE OF MOVEMENT OF AN ULTRASONIC ENERGY REFLECTING BODY WITHIN A PREDETERMINED PERIOD COMPRISING: AN ULTRASONIC TRANSMITTER FOR TRANSMITTING A BEAM OF ENERGY TOWARD SAID BODY; AN ULTRASONIC DOPPLER RECEIVER INCLUDING A TRANSDUCER FOR RECEIVING ENERGY REFLECTED FROM SAID BODY; ALARM MEANS FOR INDICATING THE FAILURE OF SAID RECEIVER TO RECEIVING A DOPPLER SIGNAL FROM SAID BODY WITHIN SAID PREDETERMINED PERIOD; AND RESETTABLE TIME-OUT MEANS CONNECTED BETWEEN SAID RECEIVER AND SAID ALARM MEANS AND INCLUDING MEANS FOR ACTUATING SAID ALARM MEANS WHEN NO DOPPLER SIGNAL IS RECEIVED WITHIN SAID PREDETERMINED PERIOD.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |