US3633924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature phonograph
Assignee: Mattel Inc
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Filing: 1969-07-31
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Granted: 1972-01-11
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Expires: 1989-07-31
Abstract
Abstract A phonograph which lies on a stationary disc-type record, including a tone arm which rotates around the record while a stylus thereon moves along the record groove to play back the recording. The phonograph has a cylindrical housing, and the tone arm has the same curvature as the housing, for reception flush therewith for storage. A case for holding the phonograph can be placed on top of the phonograph to serve as an acoustical amplifier.
Inventors
- 👤 Robert L Cowell
- 👤 Richard L May
- 👤 Thomas E See
- 👤 Edwin O Stastny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:07
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
206 words
A phonograph for playing a record with a substantially spiral track in an outer annular area and having an inner circular area comprising: a fixed housing having a generally circular perimeter of a diameter no greater than that of said circular area and including a first portion having a first diameter and a second portion having a second diameter which is less than said first diameter, said second portion including means adapted to support said housing on said inner circular area and for positioning said fixed housing aT the center of said record; an annular rotatable housing having a generally circular perimeter of approximately the same diameter as said first portion of said fixed housing; means rotatably mounting said annular rotatable housing on said second portion of said fixed housing; arcuate tone arm means including pickup means for engaging said record track; means swingably connecting said tone arm means to said rotatable housing to move radially outwardly from the perimeter thereof and inwardly to a position at least substantially flush with the perimeter thereof; and motor means mounted on said fixed housing and including an output shaft extending into said rotatable housing for rotating said rotatable housing to move said tone arm means around said record.
Claim 2
Dependent Claim
206 words
A phonograph for playing a record with a substantially spiral track in an outer annular area and having an inner circular area comprising: a fixed housing having a generally circular perimeter of a diameter no greater than that of said circular area and including a first portion having a first diameter and a second portion having a second diameter which is less than said first diameter, said second portion including means adapted to support said housing on said inner circular area and for positioning said fixed housing aT the center of said record; an annular rotatable housing having a generally circular perimeter of approximately the same diameter as said first portion of said fixed housing; means rotatably mounting said annular rotatable housing on said second portion of said fixed housing; arcuate tone arm means including pickup means for engaging said record track; means swingably connecting said tone arm means to said rotatable housing to move radially outwardly from the perimeter thereof and inwardly to a position at least substantially flush with the perimeter thereof; and motor means mounted on said fixed housing and including an output shaft extending into said rotatable housing for rotating said rotatable housing to move said tone arm means around said record.
Claim 3
Dependent Claim
47 words
The phonograph described in claim 1 wherein: said housing includes an inner portion for mounting on said record to remain stationary thereon, said inner portion 1 including: a loudspeaker mounted in said fixed housing; and means including a commutator for coupling said pickup means to said loudspeaker.
Claim 4
Dependent Claim
82 words
The phonograph described in claim 2 including: a pair of rollers rotatably mounted on said fixed housing at circumferentially spaced positions, said rollers having perimeters rollably engaged with said rotatable housing to support said rotatable housing on said fixed housing, said motor means being also mounted in said fixed housing with said output shaft extending into said rotatable housing at a position circumferentially spaced from said rollers, said output shaft being rollably engaged with said rotatable housing to support and drive it.
Claim 5
Dependent Claim
48 words
The phonograph described in claim 1 including: a switch engageable by said tone arm means for deactivating said motor means when said tone arm means moves from a position radially outwardly of the perimeter of said rotatable housing inwardly to a predetermined position adjacent said substantially flush position.
Claim 6
Dependent Claim
61 words
The phonograph described in claim 2 wherein: said loudspeaker includes a first portion mounted in said first portion of said fixed housing and a second portion extending into said second portion of said fixed housing, said second portion of said fixed housing being provided with openings communicating with said second portion of said loudspeaker, whereby to enhance the bass response thereof.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |