Electrical connectors – Metallic connector or contact having movable or resilient... – Spring actuated or resilient securing part
Patent
1988-02-10
1989-02-28
McGlynn, Joseph H.
Electrical connectors
Metallic connector or contact having movable or resilient...
Spring actuated or resilient securing part
439861, H01R 1311
Patent
active
048081299
ABSTRACT:
A cantilever contact is disclosed of the type adapted to be incorporated into a switch system or array, which comprises at least a strip line comprising a plurality of like cantilever contacts arranged in end-to-end, overlapping relationship with each other. The strip line of such contacts is adapted to be connected to a transmission system, which has a characteristic impedance. The cantilever contact includes first and second ends, a first portion adjacent to the first end affixed to a support member, a second spring portion disposed intermediate to the first and second ends, a third contact portion disposed adjacent to the first affixed portion and on the other side of the first affixed portion with respect to the second spring portion, and a fourth contact portion disposed adjacent to the second end and freely suspended by the second spring portion with respect to the support member for contacting a third contact portion of an adjacent contact in the strip line. Each of the first and second ends of each contact is folded back upon itself such that its end is shielded from the adjacent contact and, instead, a rounded surface is presented thereto. Each cantilever contact has at least one bifurcating slot disposed longitudinally thereof and is dimensioned to ensure the longitudinal flexibility of the contact. In addition, each cantilever contact has at least a further bifurcating slot disposed longitudinally thereof and extending from the second end towards the first end a length selected such that the strip line of contacts has an aggregate impedance set to be substantially equal to the characteristic impedance.
REFERENCES:
patent: 2120396 (1938-06-01), Domaleski
patent: 2391479 (1945-12-01), Rivers
patent: 2917612 (1959-12-01), Chabot
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