Patent ID: 7185792
Filing Date: 2007-03-06
Classification: B05C,G01F

Abstract:
1. A valve drive mechanism for a dispensing device adapted to dispense viscous product from a product cartridge having a valve associated with a dispensing passage, the valve drive mechanism comprising: a pinion associated with the valve and adapted to move the valve between an open position and a closed position upon rotation of the pinion; a rack associated with the pinion and adapted to rotate the pinion upon linear movement of the rack; and a trigger adjacent to a handle, the trigger being configured to be actuated by a user holding the handle in a palm of a hand and pulling the trigger with at least one finger toward the handle and the palm of the hand, the trigger being adapted to impart linear movement to the rack upon manual actuation of the trigger; wherein the open position of the nozzle valve permits viscous product to flow through the dispensing passage, and wherein the closed position of the nozzle valve prevents viscous product from flowing through the dispensing passage.