Patent US4599716A successfully refreshed from Google Patents.
US4599716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autochanger type disc player
Assignee: Toshiba Corp
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Filing: 1984-12-26
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Granted: 1986-07-08
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Expires: 2004-12-26
Abstract
Abstract An autochanger type optical compact disc player includes a disc tray for holding a large number of discs in close proximity, a disc playback section and a disc transferring section for transferring the disc between the disc tray and the disc playback section. The disc tray includes a plurality of disc holding grooves and partition walls for dividing the disc holding grooves from each other. The bottoms of the disc holding grooves are curved in an arc of a radius corresponding to the radius of the discs, and the upper edges of the partition walls incline toward the direction of movement of the discs into the disc holding grooves with respect to the tangent of the periphery of a disc at any point where the periphery of the disc crosses with the upper edges.
Inventors
- 👤 Takao Shimbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:26
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/22; G11B17/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
185 words
An autochanger type disc player for selectively playing a disc stored therein, said disc player comprising: disc playback means; disc storage means for holding a plurality of discs upright and parallel to each other therein and for allowing said discs to go into or out of said disc storage means, said disc storage means including a plurality of disc holding grooves and partition walls dividing said disc holding grooves from each other, the bottom of each of said disc holding grooves being curved in an arc of a radius approximately equal to the radius of the periphery of said discs and the upper edges of said partition walls being more inclined toward the direction of movement of said discs into said disc holding grooves than an imaginary line tangent with the periphery of one of said discs at any point where said periphery intersects said upper edges, said discs going into said disc holding grooves smoothly without the peripheries of said discs running against said upper edges; and disc transferring means for transferring said discs between said disc playback means and said disc storage means.
Claim 2
Dependent Claim
185 words
An autochanger type disc player for selectively playing a disc stored therein, said disc player comprising: disc playback means; disc storage means for holding a plurality of discs upright and parallel to each other therein and for allowing said discs to go into or out of said disc storage means, said disc storage means including a plurality of disc holding grooves and partition walls dividing said disc holding grooves from each other, the bottom of each of said disc holding grooves being curved in an arc of a radius approximately equal to the radius of the periphery of said discs and the upper edges of said partition walls being more inclined toward the direction of movement of said discs into said disc holding grooves than an imaginary line tangent with the periphery of one of said discs at any point where said periphery intersects said upper edges, said discs going into said disc holding grooves smoothly without the peripheries of said discs running against said upper edges; and disc transferring means for transferring said discs between said disc playback means and said disc storage means.
Claim 3
Dependent Claim
34 words
The autochanger type disc player of claim 1, wherein said bottoms of said disc holding grooves extend over an arc having a length approximately equal to one fourth of the circumference of said discs.
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) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |