Electrostatic discharge safety connector for electro-explosive d

Details Electrostatic discharge safety connector for electro-explosive d Electrostatic discharge safety connector for electro-explosive d

1992-05-08

1993-06-29

Bradley, Paula A.

Electrical connectors

Having circuit interrupting provision effected by mating or...

439141, 439187, 439513, H01R 2900

Patent

active

052228991

ABSTRACT:
An electrostatic discharge-safe connector comprising mating male and female connectors, that includes an insulated connector pin and a shorting member comprising an electromagnetic interference (EMI) sandwich structure that shorts the connector pin to the body of the connector when the mating portions are unmated. The EMI sandwich structure comprises an EMI gasket material sandwiched between two layers of insulating material. The EMI gasket material has a bulk resistivity of less than 10 ohms per square. When the male connector is inserted into the female connector, the EMI sandwich structure moves away from the conducting portion of the connector pin and rides against the insulating sleeve that surrounds the connector pin. This prevents conduction of electrical charge to the pin from the shell or vice versa. The present connector thus provides protection against electrostatic discharge. When used in safety and arming devices and initiation safety devices, such as are employed in missiles, for example, it also prevents in-line devices from remaining in an armed condition after test, and provides a safety for an armed device upon separation of the male and female connector.

REFERENCES:
patent: 3491326 (1970-01-01), Pfister et al.
patent: 3508188 (1970-04-01), Buck
patent: 4659160 (1987-04-01), Jonval
patent: 5052484 (1991-10-01), Gesta
patent: 5145391 (1992-09-01), Alwine

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