Abstract: An injection lubricator including a lubricant pump having a pumping piston actuated by a pneumatic pulse to deliver a pulse of lubricant, a first rotatable counting member that provides a pneumatic pulse to the pump after a fixed number of incremental rotations of the first rotatable counting member, a second rotatable counting member that carries a displacement member that provides an incremental rotation of the first rotatable counting member after a plurality of incremental rotations of the second rotatable counting member, and a counting piston that is mounted within a piston chamber to receive pneumatic pulses and to provide an incremental rotation of the second rotatable counting member upon receiving each pneumatic pulse.
Type:
Grant
Filed:
December 5, 1988
Date of Patent:
January 16, 1990
Assignee:
Watts FluidAir Div. of Robert Shaw Controls Company