Patent US5177733A successfully refreshed from Google Patents.
US5177733A
Expired / Lapsed
US
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Sound recording playing apparatus with improved vibration plate
Assignee: Ozen Corp
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Filing: 1991-04-19
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Granted: 1993-01-05
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Expires: 2011-04-19
Abstract
Abstract A casing of a sound record playing apparatus includes an upper body (1B) and a lower body (1A), and a vibration plate (16) is formed by reducing a thickness of a part of the upper body. An inner surface of the vibration plate is in abutment with a pickup (13) to amplify the vibrations of the pickup. Thus, a conical speaker which has been used conventionary can be eliminated, and the thickness of the recording disk reproducing apparatus is reduced.
Inventors
- 👤 Eishi Koike
- 👤 Masumi Kaneko
- 👤 Yasushi Ohtani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:35
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/001; G11B3/02; G11B3/08; G11B3/09
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
167 words
A sound record playing apparatus for playing a disk record and having a reduced height, comprising: a casing defined by a parallel upper part (1B) and lower part (1A), wherein the lower part has a continuous first thickness and the upper part includes a first portion adjacent a disk pickup (13) and a second portion having said first thickness distant from said pickup; and wherein said first portion defines a vibration plate which abuts a top portion of said pickup when said disk record is being played, and has a second thickness substantially less than said first thickness; said disk record having an upper surface, the disk record having a modulated groove formed on the upper surface of the disk record, the disk record deployed in a cavity of the casing; said disk pickup for scanning the modulated groove of the disk record, the pickup being deployed within the cavity of the casing; and wherein the pickup is mounted on a tone arm coupled to said casing.
Claim 2
Dependent Claim
167 words
A sound record playing apparatus for playing a disk record and having a reduced height, comprising: a casing defined by a parallel upper part (1B) and lower part (1A), wherein the lower part has a continuous first thickness and the upper part includes a first portion adjacent a disk pickup (13) and a second portion having said first thickness distant from said pickup; and wherein said first portion defines a vibration plate which abuts a top portion of said pickup when said disk record is being played, and has a second thickness substantially less than said first thickness; said disk record having an upper surface, the disk record having a modulated groove formed on the upper surface of the disk record, the disk record deployed in a cavity of the casing; said disk pickup for scanning the modulated groove of the disk record, the pickup being deployed within the cavity of the casing; and wherein the pickup is mounted on a tone arm coupled to said casing.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1, further comprising a driving wheel (3) for being pressed against a surface and thereby driving said disk record.
References Cited (Backward Citations)
US3740056A
Cited
US4078807A
Cited
US4061343A
Cited
US4254184A
Cited
US4150831A
Cited
US4259550A
Cited
US4347595A
Cited
US4447898A
Cited
US4731777A
Cited
US4922478A
Cited
JPH01290162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-01-05 | 1996-07-06 | 1997-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-05 | 2000-07-06 | 2001-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-05 | 2004-07-06 | 2005-01-05 | $7700.00 | Window Closed / Lapsed |