发明名称 PACKER ELEMENT FOR USE IN A STUFFING BOX
摘要 <p>The present invention regards a packer element (20) for use in a stuffing box (5) for sealing between to relative movable elements for instance a shaft (1) and house (2). The packer element (20) comprises an inner elastic material (21) comprising an inner void (23) and an outer abrasion layer (22). The inner void (23) is mostly fluid tight and comprises means providing at least one opening to the outside of the packer element (20), for pressurizing of the inner void (23). The invention also regards a method for producing the packer elements and method for installing it.</p>
申请公布号 WO2007148980(A1) 申请公布日期 2007.12.27
申请号 WO2007NO00214 申请日期 2007.06.18
申请人 STOKKAN, PER 发明人 STOKKAN, PER
分类号 E21B33/08 主分类号 E21B33/08
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