US3397328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage generation utilizing piezoelectric effects
Assignee: Motorola Solutions Inc
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Filing: 1966-06-14
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Granted: 1968-08-13
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Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hugo W Schafft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:56
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/18; H02N2/183; F; F23; F23Q; F23Q2/00; F23Q2/28; F23Q2/285; F23Q2/287; F23Q3/00; F23Q3/002; H10; H10N; H10N30/00; H10N30/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
FOR GENERATING AN ELECTRIC VOLTAGE WAVE, IN COMBINATION: PIEZOELECTRIC MEANS INCLUDING A CAPACITANCE AND HAVING FIRST AND SECOND END PORTIONS AND A MIDDLE PORTION BETWEEN THE END PORTIONS, MEANS FORM INTRODUCING A MECHANICAL STRESS INTO THE PIEZOELECTRIC MEANS IN SAID ONE END PORTION SUCH THAT THE STRESS TRAVELS THROUGH THE MIDDLE PORTION TO SAID SECOND END PORTION, A PLURALITY OF ELECTRODE MEANS SPACED APART ALONG THE MIDDLE PORTION SUCH THAT A SHOCK WAVE TRAVELING THEREALONG PIEZOELECTRICALLY GENERATES ELECTRICAL VOLTAGES BETWEEN ADJACENT ELECTRODE MEANS, AND A SERIES ELECTRICAL CIRCUIT INTERCONNECTING THE ELECTRODES AND INCLUDING A PLURALITY OF RECTIFIERS RESPECTIVELY CONNECTING ADJACENT ELECTRODES SUCH THAT GENERATED VOLTAGES BETWEEN ADJACENT ELECTRODES OF A FIRST POLARITY ARE SHUNTED OUT WHILE ELECTRICAL VOLTAGES OF A SECOND PLURALITY ARE BLOCKED BY THE RECTIFIERS AND STORED IN CAPACITANCE OF THE PIEZOELECTRIC MEANS AND THE COMBINATION BEING SUCH THAT THE SUMMATION OF THE STORED VOLTAGES APPEAR ACROSS SUCH SERIES CIRCUIT.
Claim 2
Dependent Claim
152 words
FOR GENERATING AN ELECTRIC VOLTAGE WAVE, IN COMBINATION: PIEZOELECTRIC MEANS INCLUDING A CAPACITANCE AND HAVING FIRST AND SECOND END PORTIONS AND A MIDDLE PORTION BETWEEN THE END PORTIONS, MEANS FORM INTRODUCING A MECHANICAL STRESS INTO THE PIEZOELECTRIC MEANS IN SAID ONE END PORTION SUCH THAT THE STRESS TRAVELS THROUGH THE MIDDLE PORTION TO SAID SECOND END PORTION, A PLURALITY OF ELECTRODE MEANS SPACED APART ALONG THE MIDDLE PORTION SUCH THAT A SHOCK WAVE TRAVELING THEREALONG PIEZOELECTRICALLY GENERATES ELECTRICAL VOLTAGES BETWEEN ADJACENT ELECTRODE MEANS, AND A SERIES ELECTRICAL CIRCUIT INTERCONNECTING THE ELECTRODES AND INCLUDING A PLURALITY OF RECTIFIERS RESPECTIVELY CONNECTING ADJACENT ELECTRODES SUCH THAT GENERATED VOLTAGES BETWEEN ADJACENT ELECTRODES OF A FIRST POLARITY ARE SHUNTED OUT WHILE ELECTRICAL VOLTAGES OF A SECOND PLURALITY ARE BLOCKED BY THE RECTIFIERS AND STORED IN CAPACITANCE OF THE PIEZOELECTRIC MEANS AND THE COMBINATION BEING SUCH THAT THE SUMMATION OF THE STORED VOLTAGES APPEAR ACROSS SUCH SERIES CIRCUIT.
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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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |