公开(公告)号：US3842939A

公开(公告)日：1974-10-22

申请号：US27831572

申请日：1972-08-07

申请人： SATZINGER GEBHARDT METALL

发明人： SATZINGER R

IPC分类号： F16N11/10 ,  F16N5/00 ,  B67D5/44

CPC分类号： F16N11/10

摘要： An improvement in a grease box comprising a casing having a closed expandable hollow body therein, said hollow body containing electrolytic fluid into which a galvanic element is advanceable to produce gas under pressure to effect expansion of said hollow body which in turn effects dispensation of lubricant out of a chamber in said grease box, which improvement comprises a slidingly displaceable insert within said casing, a lip seal disposed between said insert and said casing, said insert engageable by the wall of said hollow body.