US5070389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
IC removing mechanism in IC socket
Assignee: Yamaichi Electronics Co Ltd
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Filing: 1990-03-21
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Granted: 1991-12-03
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Expires: 2010-03-21
Abstract
Abstract An IC socket has an IC accommodating portion, at least one ejection lever disposed in the IC accommodating portion, and a socket board for supporting a generally central portion of the lever in such a manner as to be able to effect a seesaw motion. An IC is supported by a push-up lever portion on one end of the lever for effecting the seesaw motion. A push-down force is exerted on the push-down lever portion on the other end for effecting a seesaw motion of the lever, thereby to move up the push-up lever portion on the one end in order to push up the IC. The IC socket is characterized in that the push-up lever portion is provided with a small projection on a lower surface of the push-up lever portion and a cone-shaped concave portion is formed at a position corresponding to the small production in the socket board so that the lever is correctly positioned with respect to the socket board.
Inventors
- 👤 Matsuoka Noriyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:49
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1015; H05K7/103; H05K7/1046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
350 words
In an IC socket having a mechanism for ejecting an IC package therefrom, the socket having a socket substrate having an IC package accommodation section for receiving an IC package in an accommodating position when moved from a position outside said accommodation section into said accommodation section, and contact means for contacting terminal means of an IC package when an IC package is in the accommodating position, lever means constituted by a lever pivotally disposed within said socket substrate, said lever having a pivot means thereon and said socket substrate having a pivot means accommodating recess therein in which said pivot means is accommodated during pivoting movement of said lever, said pivot means and socket being positioned intermediate the ends of said lever, the pivoting of said lever being for pushing an IC package out of said accommodating position, said lever having a push-out lever portion and a push-in lever portion, said lever portions being movable alternately out and in around said pivot means as a fulcrum, and said push-out portion extending into said accommodation section for being pushed to an innermost position by an IC package in the accommodating position therein, and push-in means movably mounted on said socket substrate and movable from an outer position to an inner position and engaging the push-in lever portion of said lever for pushing the push-in portion in when said push-in means is pushed in to the inner position, said push-out portion of said lever being moved to an outermost position by pivoting movement of said lever in which it urges an IC package to a position outside said accommodation section, the improvement comprising: said push-out portion of said lever having a pointed projection and said socket substrate having a conical recess opposed to said pointed projection, said pointed projection and conical recess being positioned for, when said push-out portion is pushed in by the insertion of an IC package into said accommodation section, said pointed projection engages in said conical recess and positions said pivot means for engagement in said pivot means accommodating recess for insuring proper pivoting of said lever.
Claim 2
Dependent Claim
350 words
In an IC socket having a mechanism for ejecting an IC package therefrom, the socket having a socket substrate having an IC package accommodation section for receiving an IC package in an accommodating position when moved from a position outside said accommodation section into said accommodation section, and contact means for contacting terminal means of an IC package when an IC package is in the accommodating position, lever means constituted by a lever pivotally disposed within said socket substrate, said lever having a pivot means thereon and said socket substrate having a pivot means accommodating recess therein in which said pivot means is accommodated during pivoting movement of said lever, said pivot means and socket being positioned intermediate the ends of said lever, the pivoting of said lever being for pushing an IC package out of said accommodating position, said lever having a push-out lever portion and a push-in lever portion, said lever portions being movable alternately out and in around said pivot means as a fulcrum, and said push-out portion extending into said accommodation section for being pushed to an innermost position by an IC package in the accommodating position therein, and push-in means movably mounted on said socket substrate and movable from an outer position to an inner position and engaging the push-in lever portion of said lever for pushing the push-in portion in when said push-in means is pushed in to the inner position, said push-out portion of said lever being moved to an outermost position by pivoting movement of said lever in which it urges an IC package to a position outside said accommodation section, the improvement comprising: said push-out portion of said lever having a pointed projection and said socket substrate having a conical recess opposed to said pointed projection, said pointed projection and conical recess being positioned for, when said push-out portion is pushed in by the insertion of an IC package into said accommodation section, said pointed projection engages in said conical recess and positions said pivot means for engagement in said pivot means accommodating recess for insuring proper pivoting of said lever.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |