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US4346641A
Expired / Lapsed
US
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Apparatus for automatically turning the pages of a music box
Assignee: Individual
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Filing: 1981-02-17
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Granted: 1982-08-31
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Expires: 2001-02-17
Abstract
Abstract The invention relates to an apparatus for automatically turning the pages of a music book which consists of a music book stand, a number of page turning slats piled one over another and pivoted at the top of the music book stand, each of said slats being adapted to be inserted obliquely between every two pages of the music book, a gear arranged behind said page turning slats and said gear provided with a number of circumferentially arranged slits adapted to be engaged with the upper ends of the slats successively during the rotation of the gear so as to turn over each page. An electric motor for driving said gear is under the musician's control.
Inventors
- 👤 Itaru Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:38
CPC Classifications
B; B42; B42D; B42D9/00; B42D9/04; B42D9/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
An apparatus for automatically turning over pages of a music book consisting of: a music book stand, a number of page turning slats piled one over another and pivoted at the top of said music book stand, each of said slats being adapted to be inserted obliquely between every two pages of a music book and adapted to swing around said pivot between two side barriers, a gear having a number of slits arranged circumferentially and adapted to engage with the upper ends of said slats in succession during its rotation, an electric motor for driving said gear controlled by an ordinary and a reversible switch, and a detachable stool.
Claim 2
Independent Claim
110 words
An apparatus for automatically turning over pages of a music book consisting of: a music book stand, a number of page turning slats piled one over another and pivoted at the top of said music book stand, each of said slats being adapted to be inserted obliquely between every two pages of a music book and adapted to swing around said pivot between two side barriers, a gear having a number of slits arranged circumferentially and adapted to engage with the upper ends of said slats in succession during its rotation, an electric motor for driving said gear controlled by an ordinary and a reversible switch, and a detachable stool.
Claim 3
Dependent Claim
37 words
An apparatus according to claim 1 wherein each of said page turning slats is provided with an elastic wire loop in order to cushion the impact from a side barrier when said slat swings to one direction.
Claim 4
Dependent Claim
20 words
An apparatus according to claim 1 wherein said two side barriers define the swinging angle of said page turning slats.
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) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |