Patent ID: 9199258
Filing Date: 2015-12-01
Classification: B05B

Abstract:
1. A pump dispenser comprising a container and a pump module, the container being adapted to contain a fluid product and defining a top opening, said pump module being fitted into said top opening, and comprising: a pump body; a pump plunger; an adaptor portion; whereby the pump body is mounted into the container, the pump body and pump plunger defining a pump chamber between them and the pump plunger being reciprocable relative to the pump body in a pumping stroke to alter the volume of the pump chamber; wherein the pump module having a downwardly-directed base structure that includes a downwardly-directed central displacement base portion and a peripheral air pocket region which is adjacent a container wall in the assembled dispenser; and wherein a pump inlet opening which is defined by the inlet structure of the pump module leading to the pump chamber thereof, opens into the air pocket region, whereby trapped air accumulating in the air pocket region tends to be forced or drawn out of the container space and into the pump, either during assembly or on initial priming of the pump in use, before product is dispensed.