US4467236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric acousto-electric generator
Assignee: Piezo Electric Products Inc
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Filing: 1981-01-05
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Granted: 1984-08-21
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Expires: 2001-01-05
Abstract
Abstract A piezoelectric generator for converting acoustic energy in a predetermined frequency range to electric energy including: a piezoelectric bending element; means for mounting the piezoelectric bending element in an acoustic energy path; tuning means mounted to the piezoelectric bending element to set the resonant frequency of oscillation of the piezoelectric bending element within the predetermined frequency range.
Inventors
- 👤 Henry H. Kolm
- 👤 Eric A. Kolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
H; H10; H10N; H10N30/00; H10N30/30; H10N30/304; H10N30/306; H10N30/308
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
83 words
A piezoelectric generator system for converting acoustic energy in a predetermined frequency range to electric energy, comprising: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilevered configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 2
Dependent Claim
83 words
A piezoelectric generator system for converting acoustic energy in a predetermined frequency range to electric energy, comprising: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilevered configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 3
Dependent Claim
17 words
The piezoelectric generator of claim 1 in which said means for supporting includes a separate support member.
Claim 4
Dependent Claim
30 words
The piezoelectric generator of claim 1 in which said oscillator member extends at least part way toward the end of said piezoelectric bending element supported with said means for mounting.
Claim 5
Dependent Claim
21 words
The piezoelectric generator of claim 1 in which said oscillator member extends beyond the free end of said piezoelectric bending element.
Claim 6
Dependent Claim
35 words
The piezoelectric generator of claim 1 further including a fixed member and means for supporting said fixed member in spaced relation to the end of said pieoelectric bending element connected with said means for mounting.
Claim 7
Dependent Claim
17 words
The piiezoelectric generator of claim 5 in which said means for supporting includes a separate support member.
Claim 8
Dependent Claim
25 words
The piezoelectric generator of claim 5 in which said fixed member extends at least part way toward the free end of said piezoelectric bending element.
Claim 9
Dependent Claim
30 words
The piezoelectric generator of claim 5 in which said fixed member extends at least part way beyond the end of said piezoelectric bending element connected with said means for mounting.
Claim 10
Dependent Claim
14 words
The piezoelectric generator of claim 5 in which said fixed member is generally planar.
Claim 11
Dependent Claim
94 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a surface, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 12
Dependent Claim
94 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a surface, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 13
Dependent Claim
94 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a conduit, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 14
Dependent Claim
94 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a conduit, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 15
Dependent Claim
98 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a reciprocating piston engine exhaust conduit, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
Claim 16
Dependent Claim
98 words
A piezoelectric generator system for converting to electric energy acoustic energy in a predetermined frequency range propagating along a reciprocating piston engine exhaust conduit, comprising: a plurality of piezoelectric generators each including: a piezoelectric bending element; means for mounting said piezoelectric bending element in cantilever configuration in an acoustic energy path; a planar member and means for supporting said planar member on the free end of said piezoelectric bending element in spaced relation to said piezoelectric bending element, whereby said planar member sets the resonant frequency of oscillation of said piezoelectric bending element within said predetermined frequency range.
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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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |