US4679183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound recording apparatus for blank films and tapes
Assignee: Staar Development Co SA
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Filing: 1985-08-02
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Granted: 1987-07-07
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Expires: 2005-08-02
Abstract
Abstract An apparatus and method for reproducing sound recordings on blank films and tapes of plastic materials in which a continuous master film carrying sinuous lines of imprint containing the sound recordings to be reproduced are pressed against a blank tape as both the master film and blank tape are moved continuously at a constant speed and in synchronism past a pressure applying station. A laser is provided to emit a very fine and precise laser heat beam to heat and soften local zones of the blank tape a fraction of a second before being aligned to receive the imprints.
Inventors
- 👤 Marcel Staar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:11
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; B23; B23K; B23K26/00; B23K26/08; B23K26/083; B23K26/0838; B23K26/0846; B29B; B29B13/00; B29B13/02; B29B13/023; G; G11; G11B; G11B3/00; G11B3/64; B29C35/00; B29C35/02; B29C35/08; B29L; B29L2017/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
An apparatus for reproducing sound recordings on blank films and tapes of plastic materials comprising: (a) a continuous master film having imprints containing the sound recordings to be reproduced; (b) reproducing means for transferring the imprints on said master film onto blank film including means for pressing one film against the other and for moving said films continuously and in synchronism past a pressure applying station; (c) heating means directing heat against the blank film and not the master film for heating to soften only local zones of the blank film which will receive the imprints a fraction of a second before the imprints in said master film and the local zones of the blank film are pressed together in the pressure applying station, said local zones being linearly aligned to receive the imprints from said master film.
Claim 2
Independent Claim
138 words
An apparatus for reproducing sound recordings on blank films and tapes of plastic materials comprising: (a) a continuous master film having imprints containing the sound recordings to be reproduced; (b) reproducing means for transferring the imprints on said master film onto blank film including means for pressing one film against the other and for moving said films continuously and in synchronism past a pressure applying station; (c) heating means directing heat against the blank film and not the master film for heating to soften only local zones of the blank film which will receive the imprints a fraction of a second before the imprints in said master film and the local zones of the blank film are pressed together in the pressure applying station, said local zones being linearly aligned to receive the imprints from said master film.
Claim 3
Dependent Claim
38 words
An apparatus according to claim 1 in which said imprints are in the form of sinuous grooves to be juxtaposed to said blank film, and said heating means softens local zones linearly aligned to receive said sinuous grooves.
Claim 4
Dependent Claim
41 words
An apparatus according to claim 1 in which said heating means includes a laser providing a laser heat beam striking on said blank film a fraction of a second before said imprints on said master film are pressed onto the film.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 1 further including pull rolls for moving said films in synchronism past said pressure applying station.
Claim 6
Independent Claim
123 words
A method for reproducing sound recordings on blank films and tapes of plastic materials comprising: (a) providing a continuous master film having imprints containing the sound recordings to be reproduced; (b) transferring the imprints on said master film including pressing one film against the other and moving said films continuously and in synchronism past a pressure applying station; and (c) heating the blank film and not the master film to soften only local zones of the blank film which will receive the imprints a fraction of a second before the imprints in said master film and the local zones of the blank film are pressed together in the pressure applying station and aligning said zones to receive the imprints from said master film.
Claim 7
Independent Claim
123 words
A method for reproducing sound recordings on blank films and tapes of plastic materials comprising: (a) providing a continuous master film having imprints containing the sound recordings to be reproduced; (b) transferring the imprints on said master film including pressing one film against the other and moving said films continuously and in synchronism past a pressure applying station; and (c) heating the blank film and not the master film to soften only local zones of the blank film which will receive the imprints a fraction of a second before the imprints in said master film and the local zones of the blank film are pressed together in the pressure applying station and aligning said zones to receive the imprints from said master film.
Claim 8
Dependent Claim
25 words
A method according to claim 5 in which said imprints are in the form of multiple sinuous grooves to be juxtaposed to said blank film.
Claim 9
Dependent Claim
37 words
A method according to claim 5 in which said heating is performed by a laser beam striking said blank film a fraction of a second before pressing said imprints on said master film onto said blank film.
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) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |