US3320580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipurpose piezoelectric transducer system
Assignee: Individual
•
Filing: 1963-02-27
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Granted: 1967-05-16
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Alan O Sykes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:22
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0092; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0611; G01H; G01H11/00; G01H11/06; G01H11/08; G01L1/00; G01L1/16; G01L23/00; G01L23/08; G01L23/10; G01V; G01V1/00; G01V1/16; G01V1/162; G01V1/164; G01V1/18; G01V1/186; G01V1/187; H; H04; H04R; H04R17/00; H04R17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A TRANSDUCING SYSTEM COMPRISING: TRANSDUCER MEANS HAVING FIRST AND SECOND PIEZOELECTRIC ELEMENTS MOUNTED FOR RESPONSE TO DIFFERENT INPUT SIGNAL PARAMETERS, AT LEAST TWO OF WHICH PARAMETERS ARE TO BE UTILIZED; SAID PIEZOELECTRIC ELEMENTS HAVING ESSENTIALLY IDENTICAL PIEZOELECTRIC CONSTANTS AND CAPACITIES; TRANSDUCER OUTPUT PATH MEANS CONNECTED TO EACH OF SAID PIEZOELECTRIC ELEMENTS FOR PROVIDING OUTPUT SIGNALS FROM SAID FIRST ELEMENT 180* OUT OF PHASE WITH OUTPUT SIGNALS FROM SAID SECOND ELEMENT; AND SUM AND DIFFERENCE OUTPUT SIGNAL-PRODUCING CIRCUIT MEANS HAVING A FIRST OUTPUT CONSTITUTING A SUM OUTPUT AND A SECOND OUTPUT CONSTITUTING A DIFFERENCE OUTPUT, INCLUDING MEANS FOR EQUALIZING THE AMPLITUDES OF SAID OUTPUT SIGNALS, CONNECTED TO SAID OUTPUT PATH MEANS FOR PRODUCING ONE SYSTEM OUTPUT MEASUJREMENT SIGNAL CORRESPONDING TO SAID AT LEAST ONE INPUT SIGNAL PARAMETER, WHEREBY THE OUTPUT MEASUREMENT SIGNAL IS UNAFFECTED BY THE OTHER RECEIVED INPUT SIGNAL PARAMETER.
Claim 2
Dependent Claim
140 words
A TRANSDUCING SYSTEM COMPRISING: TRANSDUCER MEANS HAVING FIRST AND SECOND PIEZOELECTRIC ELEMENTS MOUNTED FOR RESPONSE TO DIFFERENT INPUT SIGNAL PARAMETERS, AT LEAST TWO OF WHICH PARAMETERS ARE TO BE UTILIZED; SAID PIEZOELECTRIC ELEMENTS HAVING ESSENTIALLY IDENTICAL PIEZOELECTRIC CONSTANTS AND CAPACITIES; TRANSDUCER OUTPUT PATH MEANS CONNECTED TO EACH OF SAID PIEZOELECTRIC ELEMENTS FOR PROVIDING OUTPUT SIGNALS FROM SAID FIRST ELEMENT 180* OUT OF PHASE WITH OUTPUT SIGNALS FROM SAID SECOND ELEMENT; AND SUM AND DIFFERENCE OUTPUT SIGNAL-PRODUCING CIRCUIT MEANS HAVING A FIRST OUTPUT CONSTITUTING A SUM OUTPUT AND A SECOND OUTPUT CONSTITUTING A DIFFERENCE OUTPUT, INCLUDING MEANS FOR EQUALIZING THE AMPLITUDES OF SAID OUTPUT SIGNALS, CONNECTED TO SAID OUTPUT PATH MEANS FOR PRODUCING ONE SYSTEM OUTPUT MEASUJREMENT SIGNAL CORRESPONDING TO SAID AT LEAST ONE INPUT SIGNAL PARAMETER, WHEREBY THE OUTPUT MEASUREMENT SIGNAL IS UNAFFECTED BY THE OTHER RECEIVED INPUT SIGNAL PARAMETER.
References Cited (Backward Citations)
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US3048815A
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US2961637A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |