Geometrical instruments
Patent
1979-01-15
1979-12-18
Abrams, Neil
Geometrical instruments
200 511, 339220R, H01R 3354
Patent
active
041791738
ABSTRACT:
Circuit boards equipped with conductive paths are commonly adapted to fit into a suitable female connector. At times, protrusions of contact fingers within the female connector are bent to provide an electrical circuit closure, or short, between the bent fingers. As a male circuit board is plugged into the connector, the shorted fingers separate and electrically open. That common state of the prior art ignores the need for an arrangement for shorting pins in a male pin field. This problem is solved by a shorting contact (100) comprising an electrically conductive, folded cantilever spring. The contact, which is mounted on the board (10), mechanically touches predetermined ones (11-1, 11-2) of a plurality of male pins (11). Thereby, the predetermined pins are shorted together. Also, as the female connector (20), which may be lead connected to a printed wiring board, is fitted over the pins, an insulating housing (21) of the connector touches an arm (125) of the contact. As the arm is compressed, the mechanical touching between the contact and the predetermined pins is removed, thusly the electrical short is also removed.
REFERENCES:
patent: 2898518 (1959-08-01), Lynn
patent: 3902776 (1975-09-01), Williams et al.
patent: 3918784 (1975-11-01), Lemke et al.
patent: 3997228 (1976-12-01), Gluntz
patent: 4017696 (1977-04-01), Falk
patent: 4061410 (1977-12-01), Kubik
patent: 4070557 (1978-01-01), Ostapovitch
Abrams Neil
Bell Telephone Laboratories Incorporated
Roddy Richard J.
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