← Back to Patent Explorer
US3397328A Expired / Lapsed US ⏱️ 0.0 years remaining

Voltage generation utilizing piezoelectric effects

Assignee: Motorola Solutions Inc
•
Filing: 1966-06-14
•
Granted: 1968-08-13
•
Expires: 1986-06-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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.

References Cited (Backward Citations)

US2443471A Cited
US2806155A Cited
US2974296A Cited
US2975354A Cited
US2921134A Cited
US3246164A Cited
US3271622A Cited
US3334307A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag