US3832580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight, thin film piezoelectric transducers
Assignee: Pioneer Corp
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Filing: 1973-01-04
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Granted: 1974-08-27
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Expires: 1993-01-04
Abstract
Abstract A transducer for converting electrical energy into mechanical or acoustic energy or vice versa using a converting means made of a thin film of high molecular weight polymer piezo-electric organic compound having orientated molecules and having electrodes bonded or deposited onto both surfaces thereof. When an electric current is applied to the electrodes, the thin film is extended or contracted in a direction different from the direction of orientation of the molecules. when the angle between these two directions is 45*, the extent of the extension or contraction of the thin film is at a maximum and the best converting efficiency can be obtained.
Inventors
- 👤 I Yamamuro
- 👤 M Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:23
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/005; H04R23/00; Y; Y10; Y10S; Y10S310/00; Y10S310/80
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second dIrection at an angle of approximately 45* to said first direction when an electric current is supplied to said electrode means.
Claim 2
Dependent Claim
100 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second dIrection at an angle of approximately 45* to said first direction when an electric current is supplied to said electrode means.
Claim 3
Dependent Claim
146 words
A transducer comprising: a. a cylindrical converting means for converting electrical energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of high molecular weight polymer piezoelectric material with a molecular weight of 5,000 to 500, 000 having its molecules oriented in a first direction, said converting means being separated into first and second portions by a center insulating portion, b. a thin vibrator film secured at said center portion to said converting means, c. electrode means disposed on both surfaces of said converting means, and d. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means, said converting means being fixed by said fixing means at the outer ends of said first and second portions.
Claim 4
Dependent Claim
146 words
A transducer comprising: a. a cylindrical converting means for converting electrical energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of high molecular weight polymer piezoelectric material with a molecular weight of 5,000 to 500, 000 having its molecules oriented in a first direction, said converting means being separated into first and second portions by a center insulating portion, b. a thin vibrator film secured at said center portion to said converting means, c. electrode means disposed on both surfaces of said converting means, and d. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means, said converting means being fixed by said fixing means at the outer ends of said first and second portions.
Claim 5
Dependent Claim
136 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a pair of rectangular thin film plane vibrators that are fixed at one end and are bonded at the other end in substantially perpendicular relation to each other, and a needle is secured to said bonded ends, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 6
Dependent Claim
136 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a pair of rectangular thin film plane vibrators that are fixed at one end and are bonded at the other end in substantially perpendicular relation to each other, and a needle is secured to said bonded ends, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 7
Dependent Claim
134 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film plane vibrator having a V-shaped configuration with its ends fixed, and a vibrating means comprising a conical thin vibrating plate is attached at its apex to the apex of said V-shaped vibrator, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 8
Dependent Claim
134 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film plane vibrator having a V-shaped configuration with its ends fixed, and a vibrating means comprising a conical thin vibrating plate is attached at its apex to the apex of said V-shaped vibrator, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 9
Dependent Claim
118 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film plane vibrator fixed under tension such that said vibrator can only expand when it is stressed, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 10
Dependent Claim
118 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film plane vibrator fixed under tension such that said vibrator can only expand when it is stressed, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 11
Dependent Claim
146 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film tubular vibrator fixed at two opposite ends thereof, and a resilient element is in engagment with one face of said vibrator along the entirE unsupported length thereof between said opposite ends to support it under tension such that the vibrator expands and contracts concentrically, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 12
Dependent Claim
146 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film tubular vibrator fixed at two opposite ends thereof, and a resilient element is in engagment with one face of said vibrator along the entirE unsupported length thereof between said opposite ends to support it under tension such that the vibrator expands and contracts concentrically, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 13
Dependent Claim
121 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin plane film fixed at opposite ends supported on one face along its center portions under tension by a resilient element, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 14
Dependent Claim
121 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin plane film fixed at opposite ends supported on one face along its center portions under tension by a resilient element, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 15
Dependent Claim
124 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film in the configuration of a regular polygonal cylinder supported at the corners of said polygon under tension by equidistinctly spaced resilient elements, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
Claim 16
Dependent Claim
124 words
A transducer comprising: a. converting means for converting electric energy into mechanical energy or vice versa which is a thin film of from 10-200 microns of a high molecular weight polymer piezo electric material with a molecular weight of 5,000 to 500,000 having its molecules oriented in a first direction, which comprises a thin film in the configuration of a regular polygonal cylinder supported at the corners of said polygon under tension by equidistinctly spaced resilient elements, b. electrode means disposed on both surfaces of said converting means, and c. fixing means for fixing said converting means so that it will be stressed in a second direction at an angle to said first direction when an electric current is supplied to said electrode means.
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |