Patent ID: 6149036
Filing Date: 2000-11-21
Classification: B05B

Abstract:
A pump dispenser having a fluid inlet comprising:a pump body having an end;a button cap having a spray nozzle and coupled with the end of the pump body;a plunger located inside the pump body, and having a cam surface, the plunger being movable between a depressed position when the button cap is depressed and an extended position;a stationary tube located inside the plunger and having opposed fingers, the opposed fingers having a closed position due to pressure by the plunger in the extended position and an open position when the plunger is in the depressed position;a biasing member urging the plunger to the extended position, thereby urging the opposed fingers to the closed position; anda duckbill valve for receipt of fluid from the fluid inlet and located between the opposed fingers of the stationary tube, the opposed fingers, when in the closed position, closing the duckbill valve.