Patent ID: 7448857
Filing Date: 2008-11-11
Classification: B05C,F04B

Abstract:
1. A fluid dispensing pump comprising: a pump housing having an aperture at a top portion of the pump housing and a cartridge cavity at a bottom portion of the pump housing; a removable cartridge assembly positioned in the cartridge cavity, the cartridge assembly including a feed screw having an indexed shaft; wherein the indexed shaft extends through at least a portion of the cartridge cavity along a longitudinal axis; and a motor positioned on the top portion of the pump housing along the longitudinal axis, the motor registering with the indexed shaft through the aperture, wherein the pump further comprises an actuator pin, wherein the pump housing further comprises an actuator pin aperture that receives the actuator pin, wherein the cartridge assembly further includes an actuator pin capture, and wherein the actuator pin extends through the actuator pin aperture to engage the actuator pin capture.