The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2021
Filed:
Feb. 16, 2018
Three-m Industry Co., Ltd., Osaka, JP;
Hideo Okuno, Osaka, JP;
Hiroshi Kaimoto, Osaka, JP;
Takeshi Takahashi, Osaka, JP;
Nobuya Uda, Osaka, JP;
Takanori Hashihira, Osaka, JP;
Three-M Industry Co., Ltd., Osaka, JP;
Abstract
There is provided an angle type check valve which enables simple and quick replacement operations of a valve body and a valve seat without releasing a piping coupled state and has excellent maintainability. In the angle type check valve according to the present invention, as a valve unit, a valve seat, a valve body, and a hinge mechanism are integrally assembled so as to be made into a unit part. The valve unit is attachable to and detachable from a unit fitting portion in the valve box main body. A gripping member is provided on the valve seat. As a result, access to the valve unit attached to the unit fitting portion through the access hole becomes remarkably easier. Therefore, a maintenance operator can perform a fitting operation and a removal operation of the valve unit to and from the unit fitting portion quickly with high work efficiency.