公开(公告)号：US20240307905A1

公开(公告)日：2024-09-19

申请号：US18278760

申请日：2022-02-25

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Yoichi SENSO ,  Kazuhisa YOSHIMURA

IPC: B05B11/10

CPC classification number: B05B11/1077 ,  B05B11/1023

Abstract: A discharge device includes a stem disposed inside a mouth portion of a container body to be movable downward in an upward biased state, a tubular cylinder into which the stem is inserted, a piston linked to vertical movement of the stem within the cylinder and fitted to an inner peripheral surface of the cylinder to be vertically slidable, a biasing member made of a synthetic resin that surrounds the stem from an outside in a radial direction and is mounted on an upper portion of the stem, the biasing member being configured to bias the stem upward, and a push-down head mounted on an upper end portion of the stem and provided with a nozzle hole for discharging a content fluid.