Patent US4982299A successfully refreshed from Google Patents.
US4982299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear motor locking mechanism in a disc unit
Assignee: Sharp Corp
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Filing: 1989-06-20
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Granted: 1991-01-01
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Expires: 2009-06-20
Abstract
Abstract A linear motor is movably disposed in a disc unit internally provided with a cartidge holder for loading and ejecting a disc cartridge and is securely locked by a locking mechanism at the time of ejection of the cartridge. The locking mechanism comprises a first locking member extending downwards from the cartridge holder and a second locking member securely mounted on the linear motor. When the disc cartridge is ejected by the cartridge holder, the first locking member is brought into contact with the second locking member to move the linear motor toward a location at which the linear motor is securely locked.
Inventors
- 👤 Shoji Taniguchi
- 👤 Masahiro Horii
- 👤 Akio Horiguchi
- 👤 Tetsuyuki Takemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:04
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/041; G11B19/00; G11B19/02; G11B19/04; G11B21/00; G11B21/16; G11B21/22; G11B7/00; G11B7/08; G11B7/085; G11B7/0857; G11B7/08582
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
A mechanism for locking a linear motor movably disposed in a disc unit which is internally provided with a cartridge holder for loading and ejecting a disc cartridge, said mechanism comprising: a first locking member extending downwardly from the cartridge holder; and a second locking member securely mounted on the linear motor; said first locking member, when the disc cartridge is ejected by the cartridge holder, is brought into contact with said second locking member to move the linear motor towards a location at which the linear motor is locked.
Claim 2
Dependent Claim
90 words
A mechanism for locking a linear motor movably disposed in a disc unit which is internally provided with a cartridge holder for loading and ejecting a disc cartridge, said mechanism comprising: a first locking member extending downwardly from the cartridge holder; and a second locking member securely mounted on the linear motor; said first locking member, when the disc cartridge is ejected by the cartridge holder, is brought into contact with said second locking member to move the linear motor towards a location at which the linear motor is locked.
Claim 3
Dependent Claim
44 words
The mechanism according to claim 1, wherein a portion of said linear motor is sandwiched between a frame fixedly mounted in the disc unit and said first locking member in contact with said second member, when said linear motor is locked at said location.
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) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |