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US4524438A Expired / Lapsed US ⏱️ 0.0 years remaining

Record player with hinged dust cover

Assignee: US Philips Corp
•
Filing: 1984-03-16
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Granted: 1985-06-18
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Expires: 2004-03-16
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Abstract

Abstract In a record player comprising a housing and a hinged dust cover, a hinge device is formed by a hinge wall and an abutment which are integral with the housing and spaced from each other. An end portion of a first limb of a hinge coil spring acts against the abutment to urge turns of the hinge spring against the hinge wall. A second limb of the hinge spring projects through a slot in the housing and is coupled directly to the dust cover.

Inventors

  • 👤 Hermanus F. Einhaus

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 04:19
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1215; G; G11; G11B; G11B33/00; G11B33/02; G11B33/027; E05Y; E05Y2900/00; E05Y2900/20; Y; Y10; Y10S; Y10S16/00; Y10S16/36

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 212 words
A record player comprising a housing having an upper side, a rear, and an inner surface; a dust cover; and at least one hinge device defining a hinge axis, and connected to the dust cover and to the housing near the rear, said hinge device including a hinge coil spring arranged such that, when the dust cover is swung to an open position, the dust cover is retained in this position by the hinge spring, characterized in that said hinge device comprises a hinge wall having an inner surface forming part of said housing inner surface, and an abutment, integral with the housing and spaced from said hinge wall inner surface and a slot formed in the housing adjacent the hinge wall, said slot extending parallel to a plane perpendicular to said hinge axis, said housing, hinge wall and abutment are a one-piece article, said spring comprises a first limb having an end portion, and a second limb, and said spring is arranged such that said end portion abuts said abutment so as to urge turns of the coil of the hinge spring against the hinge wall inner surface and thereby retain said spring, said second limb projecting from the housing through the slot and being coupled directly to the dust cover.
Claim 2
Dependent Claim 212 words
A record player comprising a housing having an upper side, a rear, and an inner surface; a dust cover; and at least one hinge device defining a hinge axis, and connected to the dust cover and to the housing near the rear, said hinge device including a hinge coil spring arranged such that, when the dust cover is swung to an open position, the dust cover is retained in this position by the hinge spring, characterized in that said hinge device comprises a hinge wall having an inner surface forming part of said housing inner surface, and an abutment, integral with the housing and spaced from said hinge wall inner surface and a slot formed in the housing adjacent the hinge wall, said slot extending parallel to a plane perpendicular to said hinge axis, said housing, hinge wall and abutment are a one-piece article, said spring comprises a first limb having an end portion, and a second limb, and said spring is arranged such that said end portion abuts said abutment so as to urge turns of the coil of the hinge spring against the hinge wall inner surface and thereby retain said spring, said second limb projecting from the housing through the slot and being coupled directly to the dust cover.
Claim 3
Dependent Claim 61 words
A record player as claimed in claim 1, characterized in that the hinge wall bounds a hinge space in which the turns of the hinge spring are disposed, said hinge wall being situated near the upper side of the housing; and the hinge space communicates with the interior of the housing through an opening in the bottom of the hinge space.
Claim 4
Dependent Claim 24 words
A record player as claimed in claim 2, characterized in that the hinge wall has a circular cylindrical shape concentric with said hinge axis.
Claim 5
Dependent Claim 24 words
A record player as claimed in claim 3, characterized in that said abutment is a wall formed on the inner surface of the housing.
Claim 6
Dependent Claim 24 words
A record player as claimed in claim 2, characterized in that said abutment is a wall formed on the inner surface of the housing.
Claim 7
Dependent Claim 24 words
A record player as claimed in claim 1, characterized in that said abutment is a wall formed on the inner surface of the housing.
Claim 8
Dependent Claim 36 words
A record player as claimed in claim 3, characterized in that said housing has an abutment slot, said abutment being formed by a wall of the slot, said spring end portion extending into said abutment slot.
Claim 9
Dependent Claim 36 words
A record player as claimed in claim 2, characterized in that said housing has an abutment slot, said abutment being formed by a wall of the slot, said spring end portion extending into said abutment slot.
Claim 10
Dependent Claim 36 words
A record player as claimed in claim 1, characterized in that said housing has an abutment slot, said abutment being formed by a wall of the slot, said spring end portion extending into said abutment slot.
Claim 11
Dependent Claim 161 words
A record player comprising a housing, a dust cover, and a hinge-and-spring means for connecting the dust cover to the housing, characterized in that said means consists of a hinge wall defining a hinge axis and having an inner surface, an abutment, a coil spring, and means for connecting the cover to the coil spring, said housing, hinge wall and abutment are a one-piece article, having a slot therethrough adjacent to the hinge wall and extending parallel to a plane perpendicular to said axis, said spring comprises a coil portion, a first limb having an end portion, and a second limb, and said spring and article are so arranged that said hinge wall defines a hinge space; said coil portion is retained in said hinge space by engagement of said spring end portion with said abutment, said engagement urging the coil portion against said inner surface; and said limb projects from the housing through said slot for connection to the cover.
Claim 12
Dependent Claim 161 words
A record player comprising a housing, a dust cover, and a hinge-and-spring means for connecting the dust cover to the housing, characterized in that said means consists of a hinge wall defining a hinge axis and having an inner surface, an abutment, a coil spring, and means for connecting the cover to the coil spring, said housing, hinge wall and abutment are a one-piece article, having a slot therethrough adjacent to the hinge wall and extending parallel to a plane perpendicular to said axis, said spring comprises a coil portion, a first limb having an end portion, and a second limb, and said spring and article are so arranged that said hinge wall defines a hinge space; said coil portion is retained in said hinge space by engagement of said spring end portion with said abutment, said engagement urging the coil portion against said inner surface; and said limb projects from the housing through said slot for connection to the cover.
Claim 13
Dependent Claim 28 words
A record player as claimed in claim 10, wherein said means for connecting consists of engagement of said second limb in a slot formed in the dust cover.

References Cited (Backward Citations)

US3127048A Cited
CH256703A Cited
US2557048A Cited
US2624642A Cited
US4193164A Cited
US4356594A Cited
US4424606A Cited
US4437178A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-06-17 1988-12-17 1989-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-06-17 1992-12-17 1993-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-06-17 1996-12-17 1997-06-18 $7700.00 Window Closed / Lapsed

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