A device for detecting undesired amounts of gas in a lubricant dispensing system includes a measuring chamber connected to a lubricant dispensing system and configured to receive lubricant therefrom, a moveable rod located at least partially inside the measuring chamber, an actuator operably connected...http://www.google.fr/patents/US6053285?utm_source=gb-gplus-shareBrevet US6053285 - Apparatus for dispensing measured quantities of lubricant
Apparatus for dispensing measured quantities of lubricant
