US3209313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting objects
Assignee: SPX Technologies Inc
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Filing: 1962-09-27
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Granted: 1965-09-28
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Expires: 1982-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Auer
- 👤 Jr Leslie F Waldron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/87; G01S15/02; G01S15/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
136 words
A SYSTEM FOR ASSURING DETECTION OF AN OBJECT COMPRISING, A TRANSMITTER, A TRANSDUCER COUPLED TO SAID TRANSMITTER FOR EMITTING DISCRETE ENERGY PULSES AT A PRE-ESTABLISHED REPETITION RATE, A RECEIVER INCLUDING GATING MEANS FOR RENDERING SAID RECEIVER RESPONSIVE TO SAID PULSES FOR A CONTROLLABLE DURATION FOLLOWING EMISSION OF EACH PULSE, AND A PAIR OF RECEIVING TRANSDUCERS COUPLED TO SAID RECEIVER FOR RECEIVING PULSES REFLECTED FROM SAID OBJECT, EACH RECEIVING TRANSDUCER BEING SEPARATELY LOCATED AT A DISTANCE FROM THE EMITTING TRANSDUCER EQUAL TO AN INTEGRAL FUNCTION OF THE PRODUCT OF TIME DURATION BETWEEN SUCCESSIVELY TRANSMITTED PULSES AND PROPAGATION VELOCITY OF SAID PULSES, ONE OF THE RECEIVING RRANSDUCERS BEING SPACED APART FROM THE OBJECT BY A DISTANCE EQUAL TO THE SPACING BETWEEN THE OTHER OF THE RECEIVING TRANSDUCERS AND THE OBJECT PLUS A FRACTIONAL FUNCTION OF SAID PRODUCT, WHEREBY
References Cited (Backward Citations)
US2507121A
Cited
US3105953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |