2.
    发明专利
    未知

    公开(公告)号:DE69112005T2

    公开(公告)日:1996-04-18

    申请号:DE69112005

    申请日:1991-12-05

    Applicant: IBM

    Abstract: The present invention concerns a device for connecting and disconnecting electrical connectors. The device consists of latches (9) which are pivotably arranged in the lower and upper corner regions of a protection housing (6) and a card (3), respectively, and flexible elements (15), in particular springs, which are fixed to an inflexible catch bar (13) or to housing (1) directly. The flexible elements are provided with cams (30). The latches (9) are associated with the flexible elements (15), comprising the cams (30), such that latches (9) are capable of engaging the cams only after an electrical connection has been made. The position of the cams (30) determines the magnitude of the insertion force for the connector. After connection has been establised, the pressure occurring between the connector elements is largely reduced by the flexibly retreating element (15) with the cams (30). As a result, the device according to the invention allows linking connectors with a very large number of contacts, without connector elements and in particular the board or card being damaged by the insertion force.

    3.
    发明专利
    未知

    公开(公告)号:DE69112005D1

    公开(公告)日:1995-09-14

    申请号:DE69112005

    申请日:1991-12-05

    Applicant: IBM

    Abstract: The present invention concerns a device for connecting and disconnecting electrical connectors. The device consists of latches (9) which are pivotably arranged in the lower and upper corner regions of a protection housing (6) and a card (3), respectively, and flexible elements (15), in particular springs, which are fixed to an inflexible catch bar (13) or to housing (1) directly. The flexible elements are provided with cams (30). The latches (9) are associated with the flexible elements (15), comprising the cams (30), such that latches (9) are capable of engaging the cams only after an electrical connection has been made. The position of the cams (30) determines the magnitude of the insertion force for the connector. After connection has been establised, the pressure occurring between the connector elements is largely reduced by the flexibly retreating element (15) with the cams (30). As a result, the device according to the invention allows linking connectors with a very large number of contacts, without connector elements and in particular the board or card being damaged by the insertion force.

    4.
    发明专利
    未知

    公开(公告)号:FR2335952A1

    公开(公告)日:1977-07-15

    申请号:FR7632458

    申请日:1976-10-18

    Applicant: IBM

    Abstract: A semiconductor dielectric layer formed of silicon nitride having a uniform dispersion of carbon therein for providing reduced intrinsic tensile stresses of less than 10 x 109 dyn/cm2.

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