Patent ID: 6763978
Filing Date: 2004-07-20
Classification: B05B

Abstract:
A dispenser pump having a pump chamber (4) whose volume is alterable in a pumping stroke by relative movement between a body (11, 12, 16) of the pump and a plunger (21, 23) which is reciprocable relative to the body by hand actuation;an inlet (111) being provided for flowable material to enter the pump chamber (4) from a container to which the pump is adapted to be secured, and an outlet leading from the pump chamber (4) to a discharge passage which extends along a discharge nozzle to an external nozzle opening (121); the pump comprising a blocking element arranged for guided movement transverse to the discharge passage at a blocking location, between a blocked position in which said blocking element blocks the discharge passage and an open position in which the discharge passage is open for flow of material; characterized in that the discharge nozzle includes a guide track construction leading around a bend to the blocking location; an elongate flexible drive connector extends along the guide track, longitudinally slidable relative to said guide track a proximal part of the drive connector is connected to the pump's plunger so that movement of the plunger relative to the pump body drives movement of the drive connector along the guide track, and a distal part of the drive connector acts on the blocking element, whereby said relative movement of the plunger drives movement of the blocking element between the blocked and open positions.