US4002826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Playback apparatus, in particular, video player, for playing round records provided with information tracks
Assignee: US Philips Corp
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Filing: 1975-06-05
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Granted: 1977-01-11
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Expires: 1995-06-05
Abstract
Abstract A playing apparatus, in particular a video player, for playing round records provided with information tracks and comprising a housing with a substantially flat covering plate, a drive spindle, a cover which is hinged to the housing and a stabilizing plate which is resiliently connected to the cover. On the cover a number of supports are provided which when the cover is closed support the stabilizing plate at a height which is accurately defined relative to the covering plate.
Inventors
- 👤 Johannes Andreas Iemenschot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/002; G11B7/0037; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/032; G11B17/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
A playing apparatus in particular a video player, for playing round records which are provided with information tracks and comprising: a housing with a substantially flat covering plate, a motor driven spindle which extends from the housing for rotating a record parallel to the covering plate, a cover hinged to the housing and in the closed condition covering the covering plate and drive spindle, and a stabilizing plate resiliently connected to the cover and extends substantially perpendicularly to the axis of the drive spindle when the cover is closed, for stabilizing a record during playing in its plane of rotation, while the cover is closed, a number of supports on the covering plate abutting said stabilizing plate when the cover is closed and being spaced therefrom when the cover is open, whereby the position of the stabilizing plate relative to the covering plate is determined by said supports.
Claim 2
Dependent Claim
148 words
A playing apparatus in particular a video player, for playing round records which are provided with information tracks and comprising: a housing with a substantially flat covering plate, a motor driven spindle which extends from the housing for rotating a record parallel to the covering plate, a cover hinged to the housing and in the closed condition covering the covering plate and drive spindle, and a stabilizing plate resiliently connected to the cover and extends substantially perpendicularly to the axis of the drive spindle when the cover is closed, for stabilizing a record during playing in its plane of rotation, while the cover is closed, a number of supports on the covering plate abutting said stabilizing plate when the cover is closed and being spaced therefrom when the cover is open, whereby the position of the stabilizing plate relative to the covering plate is determined by said supports.
Claim 3
Dependent Claim
81 words
A playing apparatus as claimed in claim 1, wherein: the resilient attachment of the stabilizing plate to the cover comprises a number of guide pins which are rigidly connected to the cover, the stabilizing plate is provided with openings which surround the guide pins with play, the guide pins near their free ends which face away from the cover comprise stops for the guide plate, and between the cover and the stabilizing plate pressure springs are arranged around the guide pins.
Claim 4
Dependent Claim
33 words
A playing apparatus as claimed in claim 1, wherein the supports on the covering plate are provided with recesses for receiving the free ends of the guide pins when the cover is closed.
Claim 5
Dependent Claim
20 words
A playing apparatus as claimed in claim 1, wherein the supports are adjustable in height relative to the covering plate.
Claim 6
Dependent Claim
98 words
A playing apparatus as claimed in claim 1, wherein the stabilizing plate has a central air admission aperture through which during playing of a record air is admitted between the stabilizing plate and the rotating record, wherein the cover is provided with a hole which corresponds to the air admission aperture of the stabilizing plate, the edge of the air admission aperture of the stabilizing plate is rigidly connected to the cover, the resilient connection of the stabilizing plate to the cover is located near its circumference, and the stabilizing plate is made of a resiliently deformable material.
Claim 7
Dependent Claim
49 words
A playing apparatus as claimed in claim 5, wherein when the cover is closed the distance between a rotating record and the edge of the air admission aperture is of the order of 1 mm greater than the distance between the circumference of the record and the stabilizing plate.
References Cited (Backward Citations)
US2943861A
Cited
US3863266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |