Lubricant dispenser has at least one tooth arranged on periphery of piston and pressing against inside wall of lubricant reservoir, and consists of harder material in comparison to lubricant reservoir

摘要

The lubricant dispenser, with a lubricant reservoir (1) in which is housed a reciprocating piston (4) for delivery of lubricant, has at least one tooth arranged on the periphery of the piston and pressing against the inside wall of the lubricant reservoir. The tooth consists of a harder material in comparison to the lubricant reservoir. Several teeth may be provided in the form of tooth profiles (8) distributed equally around the periphery of the piston and each provided with several teeth.