Symmetrical, single point drive for contacts of an integrated ci

Details Symmetrical, single point drive for contacts of an integrated ci Symmetrical, single point drive for contacts of an integrated ci

1983-05-23

1985-08-13

McQuade, John

Geometrical instruments

339 75R, H01R 13629

Patent

active

045346054

ABSTRACT:
A drive system flexes the free ends of two parallel sets of contacts into electrical connection with two parallel rows of leads on an integrated circuit. The drive system uses a pair of opposed, identical actuator arms. A common, movable pivot axis, preferably one defined by a link pin pivotally connected to both arms, connects one end of the arms. A solenoid drive is connected to the link pin. Activation of the solenoid draws the link pin towards it which rotates each arm about a fixed pivot point to generate a symmetrical, pincer-like movement of the free ends of the arms. Push bars secured to these free ends drive the contacts into a flexed position. The symmetrical motion of the push bars minimizes lateral movement of the integrated circuit and develops a generally uniform contact force at all of the leads. A cable with an adjustable length preferably couples the drive element with the link pin.

REFERENCES:
patent: 2183680 (1939-12-01), Kahliff
patent: 3113508 (1963-12-01), Trachtman
patent: 3170322 (1965-02-01), Cavanaugh
patent: 3412333 (1968-11-01), Frick et al.
patent: 3715662 (1973-02-01), Richelmann
patent: 3763459 (1973-10-01), Millis
patent: 3891898 (1975-06-01), Damon
patent: 4047780 (1977-09-01), Cedrone
patent: 4068170 (1978-01-01), Chayka et al.
patent: 4367584 (1983-01-01), Janisiewicz et al.
patent: 4419626 (1983-12-01), Cedrone et al.
Ross, "Test Sockett", IBM Technical Disclosure Bulletin, vol. 10, No. 5, Oct. 1967, p. 549.

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