Patent ID: 7954601

Claim:
A lubricant dispenser comprising: (a) a lubricant container having an outlet opening for a lubricant; (b) a piston disposed in said lubricant container; (c) a cap connected with said lubricant container consisting of a plastic injection-molded part being one piece and comprising an outer ring made of an electrically insulating material, an insert having two electrically conductive walls as electrodes for electro-chemical gas generation and an intermediate piece separating conductive regions of said walls, wherein the insert contains a sponge saturated with electrolyte fluid and is closed with a lid; (d) a power source; (e) an electrical connection between the power source and the electrodes of the cap comprising a switch; and (f) wherein said electrically conductive walls comprise a mantle and a base made of an electrically conductive plastic, and said intermediate piece comprises an insulating plastic; wherein the intermediate piece is ring-shaped, and said intermediate piece and said base form a bowl on an outside portion of the gas cell for receipt of a button battery, and the base directly supports the button battery; wherein said base has a plurality of exterior molded projections for producing an electrical contact with the button battery; and wherein at least one projection is molded onto said base, said at least one projection projecting into an interior portion of the gas cell and being in contact with said sponge.