US3292910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic concentrator
Assignee: SRI International Inc
•
Filing: 1964-11-10
•
Granted: 1966-12-20
•
Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 John G Martner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/28; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A BODY FOR CONCENTRATING THE OUTPUT OF AN ELECTROMECHANICAL TRANSDUCER COMPRISING A SYMMETRICAL METAL BODY HAVING WALLS DEFINING A RESONANT CAVITY AT ONE END OF ITS AXIS OF SYMMETRY AND A FLAT SURFACE AT THE OTHER END OF THE AXIS OF SYMMETRY TO WHICHSURFACE THE WORKING FACE OF SAID ELECTROCHEMICAL TRANSDUCER IS BONDED, SAID BODY AND CAVITY HAVING SIDE WALLS WHICH ARE SPACED FROM THE AXIS OF SYMMETRY A DISTANCE TO PROVIDE A TOTAL TRAVEL DISTANCE FOR ULTRASONIC ENERGY DIRECTED FROM SAID TRANSDUCER TO THE SIDE WALLS OF THE BODY AND THEN REFLECTED TO THE WALL OF SAID RESONANT CAVITY, EQUAL TO A MULTIPLE OF A WHOLE WAVELENGTH, AND SAID SIDE WALLS OF THE BODY BEING DIVIDED INTO A PLURALITY OF FRESNEL SEGMENTS.
Claim 2
Dependent Claim
123 words
A BODY FOR CONCENTRATING THE OUTPUT OF AN ELECTROMECHANICAL TRANSDUCER COMPRISING A SYMMETRICAL METAL BODY HAVING WALLS DEFINING A RESONANT CAVITY AT ONE END OF ITS AXIS OF SYMMETRY AND A FLAT SURFACE AT THE OTHER END OF THE AXIS OF SYMMETRY TO WHICHSURFACE THE WORKING FACE OF SAID ELECTROCHEMICAL TRANSDUCER IS BONDED, SAID BODY AND CAVITY HAVING SIDE WALLS WHICH ARE SPACED FROM THE AXIS OF SYMMETRY A DISTANCE TO PROVIDE A TOTAL TRAVEL DISTANCE FOR ULTRASONIC ENERGY DIRECTED FROM SAID TRANSDUCER TO THE SIDE WALLS OF THE BODY AND THEN REFLECTED TO THE WALL OF SAID RESONANT CAVITY, EQUAL TO A MULTIPLE OF A WHOLE WAVELENGTH, AND SAID SIDE WALLS OF THE BODY BEING DIVIDED INTO A PLURALITY OF FRESNEL SEGMENTS.
References Cited (Backward Citations)
US2855526A
Cited
US2995347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |