Patent ID: 6863157

Claim:
An assembly of a lubricant injector and a connector, said connector comprising a body having an injector-engaging face, said lubricant injector comprising a body having an inlet for lubricant under pressure, an outlet, a measuring chamber for receiving lubricant from the inlet, a piston movable through a stroke in the measuring chamber for the discharge of a measured volume of lubricant from the measuring chamber and thence through the outlet, and a valve responsive to pressure conditions in the inlet for operation of the injector in cycles in each of which the injector starts in a state of repose wherein pressure of lubricant in the inlet is relieved and the measuring chamber is charged with lubricant, progresses through a state wherein lubricant under pressure is delivered to the injector via the inlet for the discharge, and ends in a state for venting the injector to effect recharging of the measuring chamber involving the transmission of lubricant from the inlet to the measuring chamber, said injector body having an elongate form with a face engaging said face of the connector body and detachably fastened thereon, the inlet of the injector being constituted by a chamber in the injector body adjacent one end thereof and an inlet passage extending from said face of the injector body to said inlet chamber, the outlet of the injector being constituted by an outlet passage extending from within the injector body to said face of the injector intermediate said inlet passage and the other end of the injector body, said connector body having lubricant supply passaging therein in communication at said faces with said inlet passage in the injector, said connector body further having lubricant outlet passaging therein in communication at said faces with the outlet passage of said injector.