公开(公告)号：US4900877A

公开(公告)日：1990-02-13

申请号：US218417

申请日：1988-07-12

申请人： Robert S. Dubrow ,  Christine J. Holland ,  Randolph W. Chan ,  Albert R. Martin ,  Dennis C. Siden ,  Paul B. Germeraad

发明人： Robert S. Dubrow ,  Christine J. Holland ,  Randolph W. Chan ,  Albert R. Martin ,  Dennis C. Siden ,  Paul B. Germeraad

IPC分类号： H05K9/00

CPC分类号： H05K9/0015

摘要： This invention provides E.M.I. gaskets for electrically shielding and environmentally sealing the space between two surfaces which comprises a metallic electrically conductive deformable structure adapted for forming electrical contact with said surfaces and/or providing electrical shielding in the space between said surfaces; and a gel material for sealing the space between said surfaces having a cone penetration value of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least 200% and being present in sufficient amount and positioned to provide environmental seal between said surfaces and to provide environmental protection for said metallic structure. The gel may encapsulate the entire metallic structure so that portions of the metallic structure pierces through the gel when the gasket is installed to make electrical contact. Alternatively portions of the metallic structure may extend beyond the surface of the gel and the gel deforms to cover exposed portions of the metallic structure when the gasket is installed. The gasket of this invention provides moisture seal and is resistant to corrosion.

摘要翻译： 本发明提供E.M.I. 用于电屏蔽和环境地密封两个表面之间的空间的垫圈，其包括适于与所述表面形成电接触和/或在所述表面之间的空间中提供电屏蔽的金属导电可变形结构; 以及用于密封所述表面之间的空间的凝胶材料，其具有约100至约350（10-1mm）的锥形穿透值和至少200％的极限伸长率并且以足够的量存在并定位成在 并为所述金属结构提供环境保护。 凝胶可以封装整个金属结构，使得当安装垫圈以进行电接触时，金属结构的部分穿透凝胶。 或者，金属结构的部分可以延伸超过凝胶的表面，并且当安装垫圈时，凝胶变形以覆盖金属结构的暴露部分。 本发明的垫圈提供湿气密封并且耐腐蚀。