Electrical connectors – With circuit conductors and safety grounding provision – Grounding to connector container or housing
Patent
1990-03-21
1991-12-03
James, Andrew J.
Electrical connectors
With circuit conductors and safety grounding provision
Grounding to connector container or housing
439 68, 439152, 439 71, 357 74, 357 79, H05K 100
Patent
active
050703897
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.
REFERENCES:
patent: 4447101 (1984-05-01), Gugliotti
patent: 4579408 (1986-04-01), Sasaki
patent: 4623208 (1986-11-01), Kerul et al.
patent: 4657328 (1987-04-01), Matsuoka
patent: 4686468 (1987-08-01), Lee et al.
patent: 4750890 (1988-06-01), Dube et al.
patent: 4758176 (1988-07-01), Abe et al.
patent: 4789345 (1988-12-01), Carter
patent: 4832610 (1989-05-01), Matsuoka
James Andrew J.
Nguyen Viet Q.
Yamaichi Electric Mfg. Co. Ltd.
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