Galvanic gas-generating element for a lubricator automatically delivering lubricant

摘要

An improvement in a grease box comprising a casing having a closed expandable hollow body, the hollow body containing an electrolytic fluid into which a galvanic element is advanceable to produce gas under pressure to effect expansion of the hollow body which, in turn, effects dispensation of a lubricant out of a chamber into the grease box, the improvement lying in the galvanic element which comprises a galvanically positive member and a galvanically negative member currently conductingly connected to one another has at least one of the members covered by a non- electrolytic non-electrolyte soluble covering material, both the positive and negative members having at least one surface uncovered and in contact with electrolyte when the galvanic element is advanced into the electrolytic fluid.