公开(公告)号：US20230271209A1

公开(公告)日：2023-08-31

申请号：US18018348

申请日：2021-07-31

Applicant: OBRIST CLOSURES SWITZERLAND GMBH

Inventor： Patrick SCHMIDT ,  Christian WILHELMS ,  Klaus NATERSKY

IPC: B05B11/10

CPC classification number: B05B11/1057 ,  B05B11/104

Abstract: A trigger pump dispenser (10) comprising: a body (20); an outlet nozzle (35); a pump chamber (190); a piston (25) for defining a variable volume in the pump chamber (190) and movable between a retracted position of larger chamber volume and an inserted position of lesser chamber volume; a trigger (60) coupled with the piston (25) and movable from a starting position at which the piston (25) is in the retracted position and a depressed position at which the piston (25) is in the inserted position; biasing means (65a, 65b) is provided for biasing the trigger (60) towards its retracted position.