US3267413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Echo signal detection and display apparatus
Assignee: Raytheon Co
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Filing: 1963-10-23
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Granted: 1966-08-16
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 John N Beebe
- 👤 Jacques P Perron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:36
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/56; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
ECHO SIGNAL DETECTION AND DISPLAY APPARATUS COMPRISING MEANS FOR CONVERTING INTERMITTENT OSCILLATORY ECHO SIGNALS HAVING A FUNDAMENTAL FREQUENCY COMPONENT AT A FIRST FREQUENCY INTO INTERMITTENT OSCILLATORY SIGNALS HAVING A FUNDAMENTAL FREQUENCY COMPONENT AT A SECOND FREQUENCY SUBSTANTIALLY LOWER THAN SAID FIRST FREQUENCY, A LIGHT-WEIGHT, NON-FERROUS CORE, INDUCTIVE COUPLING MEANS HAVING FIRST AND SECOND SUBSTANTIALLY CONCENTRIC WINDINGS ROTATABLE WITH RESPECT TO EACH OTHER, AT LEAST ONE OF SAID WINDINGS WOUND ON SAID CORE, ROTATABLE INDICATOR MEANS, THE FIRST AND SAID WINDINGS BEING COUPLED TO SAID CONVERTING MEANS AND THE SECOND OF SAID WINDINGS BEING COUPLED TO SAID ROTATABLE INDICATOR MEANS, SAID ROTATABLE INDICATOR MEANS BEING RESPONSIVE TO SAID INTERMITTENT OSCILLATORY SIGNALS AT SAID SECOND FREQUENCY PRODUCING INDICATIONS REPRESENTATIVE OF SAID INTERMITTENT ECHO SIGNALS, SAID ROTATABLE INDICATOR MEANS AND SAID SECOND WINDING BEING COUPLED TOGETHER FOR ROTATION THEREOF WITH RESPECT TO SAID FIRST WINDING.
Claim 2
Dependent Claim
142 words
ECHO SIGNAL DETECTION AND DISPLAY APPARATUS COMPRISING MEANS FOR CONVERTING INTERMITTENT OSCILLATORY ECHO SIGNALS HAVING A FUNDAMENTAL FREQUENCY COMPONENT AT A FIRST FREQUENCY INTO INTERMITTENT OSCILLATORY SIGNALS HAVING A FUNDAMENTAL FREQUENCY COMPONENT AT A SECOND FREQUENCY SUBSTANTIALLY LOWER THAN SAID FIRST FREQUENCY, A LIGHT-WEIGHT, NON-FERROUS CORE, INDUCTIVE COUPLING MEANS HAVING FIRST AND SECOND SUBSTANTIALLY CONCENTRIC WINDINGS ROTATABLE WITH RESPECT TO EACH OTHER, AT LEAST ONE OF SAID WINDINGS WOUND ON SAID CORE, ROTATABLE INDICATOR MEANS, THE FIRST AND SAID WINDINGS BEING COUPLED TO SAID CONVERTING MEANS AND THE SECOND OF SAID WINDINGS BEING COUPLED TO SAID ROTATABLE INDICATOR MEANS, SAID ROTATABLE INDICATOR MEANS BEING RESPONSIVE TO SAID INTERMITTENT OSCILLATORY SIGNALS AT SAID SECOND FREQUENCY PRODUCING INDICATIONS REPRESENTATIVE OF SAID INTERMITTENT ECHO SIGNALS, SAID ROTATABLE INDICATOR MEANS AND SAID SECOND WINDING BEING COUPLED TOGETHER FOR ROTATION THEREOF WITH RESPECT TO SAID FIRST WINDING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |