公开(公告)号：US12129879B2

公开(公告)日：2024-10-29

申请号：US17580855

申请日：2022-01-21

Applicant: YAMASHIN-FILTER CORP.

Inventor： Shigeru Hashimoto ,  Nobuyuki Kitajima

IPC: F15B21/04 ,  B01D24/00 ,  B01D29/07 ,  B01D35/027 ,  F15B21/041 ,  F15B21/044

CPC classification number: F15B21/041 ,  B01D24/00 ,  B01D29/07 ,  B01D35/027 ,  F15B21/044

Abstract: Air bubbles are removable with the use of an air vent structure having a compact and simple configuration. An air vent hole is formed in an upper plate that covers an entire upper end surface of a filtration section having a substantially tubular shape formed by bending a thin plate in a pleat shape. A moving member is provided to be movable between a position of closing the air vent hole and a position of opening the air vent hole.