JOINT WITH BUILT-IN FILTER

Title:

JOINT WITH BUILT-IN FILTER

Document Type and Number:

WIPO Patent Application WO/2023/037730

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a joint with a built-in filter which allows replacement of the filter without requiring removal of the joint from piping, thereby facilitating the replacement of the filter. This joint with the built-in filter comprises first and second inflow/outflow port portions (21, 22), a communicating space (24) formed so as to communicate with the first and second inflow/outflow port portions, and an opening portion for maintenance (23) which is air-tightly sealed during non-maintenance. A filter element (50) has a tubular filter main body (51), a base end portion 52 which is air-tightly attached to an opening portion at one end of the filter main body and which is provided with a sealing ring (55) disposed between an outer peripheral surface thereof and an inner surface of the communicating space, and a distal end portion (56) which is disposed so as to air-tightly seals an opening portion at the other end of the filter main body. The opening portion for maintenance has a predetermined opening size and is disposed at a predetermined position in a joint main body. A surface of the distal end portion on the maintenance opening portion side is provided with a locking means (57) for inserting and removing the filter element.

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Inventors:

YANAGIDA YASUMASA (JP)
HIRAMATSU KOJI (JP)
MOURI TOMOHIRO (JP)
YAKUSHIJIN TADAYUKI (JP)
DAIDO KUNIHIKO (JP)

Application Number:

PCT/JP2022/026215

Publication Date:

March 16, 2023

Filing Date:

June 30, 2022

Export Citation:

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Assignee:

FUJIKIN KK (JP)

International Classes:

F16L55/00; B01D46/24; C01B3/00

Foreign References:

JP2021089004A	2021-06-10
JP2016155061A	2016-09-01
JPS61230714A	1986-10-15
JPH09206535A	1997-08-12
JPH02107310A	1990-04-19

Attorney, Agent or Firm:

MATSUMURA Naoto et al. (JP)

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