Patent US3704050A successfully refreshed from Google Patents.
US3704050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound reproduction system
Assignee: Panasonic Holdings Corp
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Filing: 1971-04-02
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Granted: 1972-11-28
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Expires: 1991-04-02
Abstract
Abstract A sound reproduction system in which a radio receiver is coupled to the top of a record player through a lifting mechanism so that a cover of the record player is eliminated, and in addition, the sound reproduction system is made compact and lightweight as a whole.
Inventors
- 👤 Nobuhiro Nakae
- 👤 Toru Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:45
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; A; A47; A47B; A47B81/00; A47B81/06; A47B81/061; G11B33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
A sound reproduction system comprising a record player, a radio receiver disposed above said record player, and lifting means interconnecting said record player and said radio receiver for supporting said radio receiver and permitting said radio receiver to move in an arcuate path, wherein said lifting means comprises: a first mounting plate fixed to each side of said radio receiver; a second mounting plate fixed to each side of said record player; a pair of lifting levers provided on each side of said system, one end of each of said pair of lifting levers being pivotally connected to said first mounting plate and the other end thereof being pivotally connected to said second mounting plate, said radio receiver being movable in an arcuate path while maintaining a planar position parallel to that of said record player; an inclined portion formed at one end of at least one of said pair of levers; an arcuate slot formed in each of said second mounting plates; a sliding rod extending through said arcuate slots and secured to said inclined portion, said sliding rod being slideable in said arcuate slots; and spring means connected between said sliding rod and said second mounting plate to bias said rod normally In a given direction.
Claim 2
Dependent Claim
208 words
A sound reproduction system comprising a record player, a radio receiver disposed above said record player, and lifting means interconnecting said record player and said radio receiver for supporting said radio receiver and permitting said radio receiver to move in an arcuate path, wherein said lifting means comprises: a first mounting plate fixed to each side of said radio receiver; a second mounting plate fixed to each side of said record player; a pair of lifting levers provided on each side of said system, one end of each of said pair of lifting levers being pivotally connected to said first mounting plate and the other end thereof being pivotally connected to said second mounting plate, said radio receiver being movable in an arcuate path while maintaining a planar position parallel to that of said record player; an inclined portion formed at one end of at least one of said pair of levers; an arcuate slot formed in each of said second mounting plates; a sliding rod extending through said arcuate slots and secured to said inclined portion, said sliding rod being slideable in said arcuate slots; and spring means connected between said sliding rod and said second mounting plate to bias said rod normally In a given direction.
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |