US3835265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating member for acoustic transducer
Assignee: Pioneer Corp
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Filing: 1972-11-03
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Granted: 1974-09-10
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Expires: 1992-11-03
Abstract
Abstract A vibrating member for an acoustic transducer made of a transparent or translucent thin film and bearing a marking thereon, by which possible overlap of two or more vibrating members can be readily determined visually, and a method for producing the vibrating member comprising a marking step, a heating step and a punching step.
Inventors
- 👤 T Itagaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:33
CPC Classifications
H; H04; H04R; H04R31/00; H04R31/003; H04R7/00; H04R7/02; H04R7/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
33 words
A vibrating member for use in an electroacoustic transducer, comprising a transparent or translucent thin film and a marking borne thereon to facilitate a visual confirmation of an overlap with other vibrating members.
Claim 2
Dependent Claim
33 words
A vibrating member for use in an electroacoustic transducer, comprising a transparent or translucent thin film and a marking borne thereon to facilitate a visual confirmation of an overlap with other vibrating members.
Claim 3
Dependent Claim
23 words
A vibrating member as set forth in claim 1, in which the marking is provided on the film in the form of dots.
Claim 4
Dependent Claim
26 words
A vibrating member as set forth in claim 1, in which the marking is provided on the film in the form of a continued wave-like line.
Claim 5
Dependent Claim
24 words
A vibrating member as set forth in claim 1, in which the marking is provided on the film in the form of a line.
Claim 6
Dependent Claim
50 words
A vibratable member for use in an electroacoustic transducer, consisting of a one-piece, annular, transparent or translucent, thin plastic film of uniform thickness and having a visible marking printed on the surface of the film to facilitate a visual confirmation of an overlap of the film with other similar films.
Claim 7
Dependent Claim
50 words
A vibratable member for use in an electroacoustic transducer, consisting of a one-piece, annular, transparent or translucent, thin plastic film of uniform thickness and having a visible marking printed on the surface of the film to facilitate a visual confirmation of an overlap of the film with other similar films.
Claim 8
Dependent Claim
21 words
A vibratable member as set forth in claim 5, in which said film has a thickness of 15 to 70 microns.
Claim 9
Dependent Claim
25 words
A vibratable member as set forth in claim 6, in which said marking is a series of spaced-apart dots on one surface of the film.
Claim 10
Dependent Claim
25 words
A vibratable member as set forth in claim 6, in which said marking is a continuous line extending across the film on one surface thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |