The invention relates to a trigger pump dispenser comprising - a main body, comprising - a pump chamber - an inlet port in communication with said pump chamber - an outlet port in communication with said pump chamber - an inlet valve seated between the pump chamber and the inlet port - a outlet valve seated between the pump chamber and the outlet port - a piston, seated in the pump chamber, for defining a variable volume in said pump chamber and movable between a retracted position of larger chamber volume and an inserted position of lesser chamber volume, - wherein the pump chamber has a conical shape.


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    Title :

    Improvements in or relating to trigger pump dispensers


    Publication date :

    2023-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English



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