US3079596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic level sensing system
Assignee: Individual
•
Filing: 1960-03-17
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Granted: 1963-02-26
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Expires: 1980-03-17
Abstract
No abstract record available.
Inventors
- 👤 Duane E Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2966; G01F23/2961; G01F23/2965; Y; Y10; Y10S; Y10S367/00; Y10S367/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A MATERIAL BODY DETECTING SYSTEM COMPRISING AN AMPLIFIER HAVING INPUT AND OUTPUT MEANS, A FIRST ACOUSTICAL TRANSDUCING MEANS FOR FORMING ACOUSTICAL WAVES HAVING AN INPUT CONNECTED TO THE OUTPUT OF SAID AMPLIFIER TO BE ENERGIZED THEREBY, SECOND ACOUSTICAL TRANSDUCING MEANS HAVING AN OUTPUT CONNECTED TO THE INPUT OF SAID AMPLIFIER TO PROVIDE AN INPUT SIGNAL THERETO, SAID SECOND ACOUSTICAL TRANSDUCING MEANS BEING SPACED FROM THE FIRST AND ARRANGED TO RECEIVE THE ACOUSTICAL WAVES TO PROVIDE AN ACOUSTICAL PATH BETWEEN THE FIRST AND SECOND ACOUSTICAL TRANSDUCING MEANS, SAID ACOUSTICAL PATH INCLUDING A BODY OF AIR ADJACENT AT LEAST ONE OF SAID TRANSDUCING MEANS THROUGHOUT THE OPERATION OF THE SYSTEM, SAID AMPLIFIER, ACOUSTICAL TRANSDUCING MEANS AND ACOUSTICAL PATH FORMING A CLOSED SYSTEM, THE GAIN IN SAID CLOSED SYSTEM BEING ADJUSTED WHEREBY WHEN THE PATH BETWEEN THE FIRST AND SECOND ACOUSTICAL TRANSDUCING MEAN IS FREE OF SAID MATERIAL OBJECT THE ACOUSTICAL WAVES TRANSMITTED BY THE FIRST ACOUSTICAL TRANSDUCING MEANS ARE RECEIVED BY THE SECOND TRANSDUCING MEANS WITH SUFFICIENT AMPLITUDE SO THAT THE GAIN OF THE SYSTEM IS ABOVE THAT REQUIRED TO OSCILLATE AND WHEN THE ACOUSTICAL PATH IS INTERRUPTED BY SAID MATERIAL BODY THE ACOUSTICAL WAVES TRANSMITTED BY THE FIRST ACOUSTICAL TRANSDUCING MEANS AND RECEIVED BY THE SECOND ARE ATTENUATED BY THE MATERIAL SO THAT THE GAIN OF THE SYSTEM IS BELOW THAT REQUIRED FOR OSCILLATION.
Claim 2
Dependent Claim
223 words
A MATERIAL BODY DETECTING SYSTEM COMPRISING AN AMPLIFIER HAVING INPUT AND OUTPUT MEANS, A FIRST ACOUSTICAL TRANSDUCING MEANS FOR FORMING ACOUSTICAL WAVES HAVING AN INPUT CONNECTED TO THE OUTPUT OF SAID AMPLIFIER TO BE ENERGIZED THEREBY, SECOND ACOUSTICAL TRANSDUCING MEANS HAVING AN OUTPUT CONNECTED TO THE INPUT OF SAID AMPLIFIER TO PROVIDE AN INPUT SIGNAL THERETO, SAID SECOND ACOUSTICAL TRANSDUCING MEANS BEING SPACED FROM THE FIRST AND ARRANGED TO RECEIVE THE ACOUSTICAL WAVES TO PROVIDE AN ACOUSTICAL PATH BETWEEN THE FIRST AND SECOND ACOUSTICAL TRANSDUCING MEANS, SAID ACOUSTICAL PATH INCLUDING A BODY OF AIR ADJACENT AT LEAST ONE OF SAID TRANSDUCING MEANS THROUGHOUT THE OPERATION OF THE SYSTEM, SAID AMPLIFIER, ACOUSTICAL TRANSDUCING MEANS AND ACOUSTICAL PATH FORMING A CLOSED SYSTEM, THE GAIN IN SAID CLOSED SYSTEM BEING ADJUSTED WHEREBY WHEN THE PATH BETWEEN THE FIRST AND SECOND ACOUSTICAL TRANSDUCING MEAN IS FREE OF SAID MATERIAL OBJECT THE ACOUSTICAL WAVES TRANSMITTED BY THE FIRST ACOUSTICAL TRANSDUCING MEANS ARE RECEIVED BY THE SECOND TRANSDUCING MEANS WITH SUFFICIENT AMPLITUDE SO THAT THE GAIN OF THE SYSTEM IS ABOVE THAT REQUIRED TO OSCILLATE AND WHEN THE ACOUSTICAL PATH IS INTERRUPTED BY SAID MATERIAL BODY THE ACOUSTICAL WAVES TRANSMITTED BY THE FIRST ACOUSTICAL TRANSDUCING MEANS AND RECEIVED BY THE SECOND ARE ATTENUATED BY THE MATERIAL SO THAT THE GAIN OF THE SYSTEM IS BELOW THAT REQUIRED FOR OSCILLATION.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |