Electrical connectors – Including elastomeric or nonmetallic conductive portion
Patent
1988-10-19
1989-12-26
Bradley, P. Austin
Electrical connectors
Including elastomeric or nonmetallic conductive portion
439140, 439137, 439 76, H01B 458
Patent
active
048894982
ABSTRACT:
A memory card with a connector having a male contact including a relatively large numbers of connecting pins. The card comprises a card-shaped housing in which a female contact is disposed to be accessible by the male contact from the outside of the housing. The housing also contains therein internal conductors between internal components and the female contact. The female contact comprises an elastomer connector having an electrically insulating elastomer and a large number of electrically conductive fine fibers, each having a first and a second end. The conductive fibers extend through and are supported by the insulating elastomer for establishing a large number of independent electrically conductive paths therethrough. The dimensions and the pitch of the conductive fibers is so fine that the respective conductors and the corresponding external male pin are electrically connected through at least one of the conductive fibers when the male and female contact are connected. A spring-biased, slidable shutter may be provided to selectively cover or expose the female contact. The exposure may be either on a side surface or a major surface of the housing.
REFERENCES:
patent: 4008300 (1977-02-01), Ponn
patent: 4514024 (1985-04-01), Clark
patent: 4639062 (1987-01-01), Taniguchi et al.
patent: 4754546 (1988-07-01), Lee et al.
patent: 4767348 (1988-08-01), Murakami
patent: 4780793 (1988-10-01), Ohtsuki
patent: 4789347 (1988-12-01), Banjo et al.
patent: 4791608 (1988-12-01), Fushimoto
Bradley P. Austin
Mitsubishi Denki & Kabushiki Kaisha
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