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US5531608A Expired / Lapsed US ⏱️ 0.0 years remaining

IC retainer in IC socket

Assignee: Yamaichi Electronics Co Ltd
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Filing: 1995-02-17
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Granted: 1996-07-02
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Expires: 2015-02-17
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Abstract

Abstract An IC retainer in an IC socket comprise a lock lever for engaging and disengaging from an IC or an IC carrier in accordance with upward and downward motion of a cover, a turnable lever for transforming the upward and downward motion of the cover to upward and downward motion of the lock lever, a mechanism for shifting the lock lever to a backward disengaging position when the lock lever is moved upwardly and to a forward engaging position when the lock lever is lowered, and a spring arrangement for applying a downward turning force to an external end portion of the turnable lever while applying a lowering force to that side of the lock lever on which the external end portion of the turnable lever acts. An internal end portion of the turnable lever opposite to that end portion on which the spring arrangement acts is turned upwardly by the downward turning force applied to the external end portion of the turnable lever, so that an upwardly directed force is applied to the cover.

Inventors

  • 👤 Shunji Abe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 09:13
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; G; G01; G01R; G01R1/00; G01R1/02; G01R1/04; G01R1/0408; G01R1/0433; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1007; H05K7/1053; H05K7/1061; H05K7/1069

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 173 words
An IC retainer in an IC socket comprising a lock lever for engaging and disengaging from an IC or an IC carrier in accordance with upward and downward motion of a cover, a turnable lever for transforming the upward and downward motion of said cover to upward and downward motion of said lock lever, means for shifting said lock lever to a backward disengaging position when said lock lever is moved upwardly and to a forward engaging position when said lock lever is lowered, and spring means for applying a downward turning force to an external end portion of said turnable lever while applying a lowering force to a side of said lock lever on which the external end portion of said turnable lever acts, an internal end portion of said turnable lever opposite to that end portion on which said spring means acts being turned upwardly by the downward turning force applied to said external end portion of said turnable lever, so that an upwardly directing force is applied to the cover.
Claim 2
Dependent Claim 173 words
An IC retainer in an IC socket comprising a lock lever for engaging and disengaging from an IC or an IC carrier in accordance with upward and downward motion of a cover, a turnable lever for transforming the upward and downward motion of said cover to upward and downward motion of said lock lever, means for shifting said lock lever to a backward disengaging position when said lock lever is moved upwardly and to a forward engaging position when said lock lever is lowered, and spring means for applying a downward turning force to an external end portion of said turnable lever while applying a lowering force to a side of said lock lever on which the external end portion of said turnable lever acts, an internal end portion of said turnable lever opposite to that end portion on which said spring means acts being turned upwardly by the downward turning force applied to said external end portion of said turnable lever, so that an upwardly directing force is applied to the cover.
Claim 3
Dependent Claim 33 words
The IC retainer as claimed in claim 1, further comprising a pusher mounted on said cover and adapted to push the back of said lock lever forwardly when said lock lever is lowered.
Claim 4
Dependent Claim 22 words
The IC retainer as claimed in claim 1, further comprising a front abutment member for restricting the front of said lock lever.

References Cited (Backward Citations)

US4786256A Cited
US4846703A Cited
JPH03289077A Cited
US5320550A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-07-02 2000-01-01 2000-07-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-07-02 2004-01-01 2004-07-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-07-02 2008-01-01 2008-07-02 $7700.00 Window Closed / Lapsed

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