US4078807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph record player
Assignee: Individual
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Filing: 1976-03-16
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Granted: 1978-03-14
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Expires: 1996-03-16
Abstract
Abstract A phonograph record player including a speaker, a turntable and resettable tone arm. The speaker is fixedly secured to the casing of the record player and the tone arm is in contact with the speaker and the record as the record is being played. The turntable is mounted on a spindle carried by a transversely extending cantilever arm which is either attached to the base of the casing of the record player or is an integral part of the said casing. The cantilever arm arrangement enables the turntable to move resiliently in all directions being only restricted by the needle point thus providing a relatively stiff coupling arrangement between the record, the turntable and the speaker. The tone arm, which is radially spring biased, is maintained against the action of the spring in the grooves of the record throughout play of the record and by the central portion of the record when play is completed. The record is normally urged into contact with the tone arm by the pressure of the cantilever arm. The aforesaid cantilever arrangement also enables the turntable to be depressed to permit the record to become disengaged from the tone arm so that the tone arm will return to its starting position.
Inventors
- 👤 Henry A. Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/001; G11B3/02; G11B3/08; G11B3/09; G11B3/093; G11B33/00; G11B33/02; G11B33/022
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
75 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm stationarily fixedly positioned on said housing and resiliently operatively independently and directly supporting said turntable in any direction of movement thereof with respect to said housing for operative engagement thereof with said tone arm, said cantilever arm providing the sole support for said turntable.
Claim 2
Dependent Claim
75 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm stationarily fixedly positioned on said housing and resiliently operatively independently and directly supporting said turntable in any direction of movement thereof with respect to said housing for operative engagement thereof with said tone arm, said cantilever arm providing the sole support for said turntable.
Claim 3
Dependent Claim
30 words
The phonograph record player of claim 1 in which said cantilever arm is formed of resilient material and disposed to urge said turntable resiliently into engagement with said tone arm.
Claim 4
Dependent Claim
28 words
The phonograph record player of claim 2 in which the cantilever arm is a leaf spring arrangement having one free end and one end secured to the housing.
Claim 5
Dependent Claim
16 words
The phonograph record player of claim 2 in which the speaker is affixed to the housing.
Claim 6
Dependent Claim
19 words
The phonograph record player of claim 2 in which the cantilever arm is an integral part of the housing.
Claim 7
Dependent Claim
16 words
The phonograph record player of claim 5 in which the housing comprises a hinged base plate.
Claim 8
Dependent Claim
18 words
The phonograph record player of claim 6 including latch means for maintaining said base plate in closed position.
Claim 9
Dependent Claim
20 words
The phonograph record player of claim 2 in which the housing includes a pivotably movable base plate carrying said turntable.
Claim 10
Dependent Claim
32 words
The phonograph record player of claim 2 in which the turntable has a central aperture and one end of the cantilever arm carries a spindle extending through said aperture in said turntable.
Claim 11
Dependent Claim
26 words
The phonograph record player of claim 2 including baising means for said tone arm normally urging said tone arm to the outer perimeter of said turntable.
Claim 12
Dependent Claim
35 words
The phonograph record player of claim 11 including a resetting means for returning the tone arm from a position near the center of said turntable to a position at the outer perimeter of said turntable.
Claim 13
Dependent Claim
42 words
The phonograph record player of claim 12 in which said resetting means is adapted to engage the turntable to move against the action of the cantilever arm to thereby release the tone arm for return to the outer perimeter of said turntable.
Claim 14
Dependent Claim
15 words
The phonograph record player of claim 12 including resilient biasing means for said resetting means.
Claim 15
Dependent Claim
107 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm having a turntable spindle in engagement with said turntable and providing the sole support for the turntable spindle, in which said housing comprises a hinged base plate, and said cantilever arm formed in the base plate as an integral part of the base plate material and is defined by a partially cut-out portion of said base plate and is formed of resilient material and disposed to urge said turntable resiliently into engagement with said tone arm.
Claim 16
Dependent Claim
107 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm having a turntable spindle in engagement with said turntable and providing the sole support for the turntable spindle, in which said housing comprises a hinged base plate, and said cantilever arm formed in the base plate as an integral part of the base plate material and is defined by a partially cut-out portion of said base plate and is formed of resilient material and disposed to urge said turntable resiliently into engagement with said tone arm.
Claim 17
Dependent Claim
132 words
A phonograph record player comprising a housing, a speaker and a turntable having a central aperture, a tone arm disposed between said speaker and said turntable for engagement therebetween, driving means for said turntable, said housing having a hinged base plate, a cantilever arm formed in the base plate as an integral part of the base plate material and defined by a partially cut-out portion of said base plate having a fixed end integral with the base plate and a free end terminating in a spindle and providing the sole support for the turntable spindle, a shaft for said turntable journaled in said spindle and extending through the aperture in said turntable and biasing means for said tone arm for normally urging said tone arm to the outer perimeter of said turntable.
Claim 18
Dependent Claim
132 words
A phonograph record player comprising a housing, a speaker and a turntable having a central aperture, a tone arm disposed between said speaker and said turntable for engagement therebetween, driving means for said turntable, said housing having a hinged base plate, a cantilever arm formed in the base plate as an integral part of the base plate material and defined by a partially cut-out portion of said base plate having a fixed end integral with the base plate and a free end terminating in a spindle and providing the sole support for the turntable spindle, a shaft for said turntable journaled in said spindle and extending through the aperture in said turntable and biasing means for said tone arm for normally urging said tone arm to the outer perimeter of said turntable.
Claim 19
Dependent Claim
34 words
The phonograph record player of claim 15 including resetting means for returning the tone arm from a position near the center of the turntable to a position at the outer perimeter of said turntable.
Claim 20
Dependent Claim
109 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm in engagement with said turntable, said cantilever arm being stationarily fixedly positioned on said housing and independently and directly carrying said turntable in resting relation thereon and providing the sole support for said turntable, said cantilever arm carrying a spindle and said turntable being operatively journaled on said spindle to said cantilever arm for rotation thereon, and said cantilever arm being formed of resilient material and disposed to urge said turntable resiliently into engagement with said tone arm.
Claim 21
Dependent Claim
109 words
A phonograph record player comprising a housing, speaker and turntable, a tone arm disposed between said speaker and turntable for engagement therebetween, driving means for said turntable and a cantilever arm in engagement with said turntable, said cantilever arm being stationarily fixedly positioned on said housing and independently and directly carrying said turntable in resting relation thereon and providing the sole support for said turntable, said cantilever arm carrying a spindle and said turntable being operatively journaled on said spindle to said cantilever arm for rotation thereon, and said cantilever arm being formed of resilient material and disposed to urge said turntable resiliently into engagement with said tone arm.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |