Patent US3590288A successfully refreshed from Google Patents.
US3590288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric transducer utilizing a catenoidally tapered horn
Assignee: The Ohio State University
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Filing: 1969-06-13
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Granted: 1971-06-29
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Expires: 1989-06-13
Abstract
Abstract A piezoelectric transducer for converting high power electrical energy to high power mechanical energy at a sonic frequency range. Specifically, the invention is an electromechanical transducer capable of delivering high power levels ( 30 kw) in a high-Q, high efficiency construction utilizing ceramic polycrystalline driving elements. Reference is made to the claims for a legal definition of the invention.
Inventors
- 👤 Hildegard M Minchenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
A high power electromechanical transducer as set forth in claim 1 wherein the diameter ratios in excess of 3 are linearly related to the length of said transducer.
Claim 2
Dependent Claim
29 words
A high power electromechanical transducer as set forth in claim 1 wherein the diameter ratios in excess of 3 are linearly related to the nodal position of said transducer.
Claim 3
Dependent Claim
37 words
A high power electromechanical transducer as set forth in claim 1 wherein the amplification factor of said transducer is related to said diameter ratio wherein the diameter ratio of 3 corresponds to an amplification factor of 3.57.
Claim 4
Dependent Claim
29 words
A high power electromechanical transducer as set forth in claim 4 wherein the diameter ratios in excess of 3 are linearly related to the amplification factor of said transducer.
References Cited (Backward Citations)
US3368085A
Cited
US3396285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |