Patent ID: 9211559
Filing Date: 2015-12-15
Classification: B05B

Abstract:
1. A pump dispenser for dispensing fluid product from a supply container, said pump dispenser having a pump chamber with a valved inlet to communicate with the supply container and an outlet, the pump dispenser comprising a plunger and a pump body relative to which the plunger is reciprocable to alter the volume of the pump chamber in a dispensing stroke to dispense fluid product from the fluid outlet, wherein the pump dispenser having top and bottom limit positions for the plunger relative to the pump body and the plunger being biased towards the top limit position, wherein the improvement comprises: a first engagement structure as part of said pump body; and a second engagement structure as part of said plunger, said second engagement structure being constructed and arranged to cooperate with said first engagement structure for retaining said plunger at an axially intermediate position between said top limit position and said bottom limit position, wherein said plunger is constructed and arranged to be rotated for disengagement of said first engagement structure and said second engagement structure when said plunger is at a said axially intermediate position.