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    • 2. 发明授权
    • Environmental sealing system for electronic instruments
    • 电子仪器环境密封系统
    • US5550324A
    • 1996-08-27
    • US393550
    • 1995-02-23
    • Michael J. BlackKeith S. WillowsWilliam P. StilesPatrick M. Gallagher
    • Michael J. BlackKeith S. WillowsWilliam P. StilesPatrick M. Gallagher
    • H05K5/00H05K5/06
    • H05K5/062H05K5/0008
    • An environmentally sealed electronic test instrument having a three-part case enclosing an electronic testing circuit of conventional design. The three parts are open-ended top and bottom parts, and an end part covering the open ends of the top and bottom parts. The top and bottom parts have adjoining sidewalls between which is positioned a first resilient seal. Respective inwardly extending flanges are formed at the open ends of the top and bottom parts. The flanges are received by a second, U-shaped seal that is, in turn, received by a U-shaped channel formed along a marginal edge of the end plate. A pair of fingers integrally formed in the second gasket project into the U-shaped channel and are positioned between the first seal and top part of the case. The side marginal edge of the bottom part of the case are recessed within the sidewall of the top part of the case to enclose the first gasket.
    • 一种环境密封的电子测试仪器,其具有封闭常规设计的电子测试电路的三部分壳体。 这三个部分是敞开的顶部和底部部分,以及覆盖顶部和底部部分的开放端部的端部部分。 顶部和底部具有相邻的侧壁,在其之间定位有第一弹性密封。 相应的向内延伸的凸缘形成在顶部和底部的开口端。 凸缘由第二U形密封件接收,U形密封件又由沿着端板边缘形成的U形通道接收。 整体形成在第二垫圈中的一对指状物突出到U形通道中并且位于第一密封件和壳体的顶部之间。 壳体底部的侧边缘凹陷在壳体顶部的侧壁内以封闭第一垫圈。