Non-shorting pin system

Details Non-shorting pin system Non-shorting pin system

1983-03-03

1986-07-08

McQuade, John

Geometrical instruments

339176MP, H01R 909

Patent

active

045989664

ABSTRACT:
The invention is a zero insertion force printed circuit board edge connector that ensures electrical connection under a worst-case accumulation of mechanical tolerances while precluding the short circuiting of connector contact pins in the absence of a board within the connector. The contact pins of the connector are formed so that the contact regions of the contact pins lie in at least two horizontal planes. The longer pins located on one side of the connector are located opposite the shorter pins on the other side of the connector. When the connector is actuated in the absence of a printed circuit board, the short pins will move under the opposing long pins but the pins will not short circuit. During actuation, the pins will move more than half way across the connector opening thereby guaranteeing connection to any card regardless of dimensional tolerance or of card position within the connector opening.

REFERENCES:
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patent: 4428635 (1984-01-01), Hamsher, Jr. et al.
patent: 4431252 (1984-02-01), Cairns et al.
IBM Technical Disclosure Bulletin, S. J. Jensen et al., High Density Circuits Connector, Nov. 1970, vol. 13, No. 6, pp. 1529-1530.

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