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:
Sep. 21, 2017
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. The angle type check valve according to the present invention includes: a valve box main body which is provided with an inflow port opened on a lower side, an outflow port opened on a lateral side, and an access hole opened on an upper side, and in which a valve chamber that has a bent shape is formed; a lid body which seals the access hole; a valve seat which is provided with a valve port; a valve body which opens and closes the valve port; and a hinge mechanism which supports the valve body. As a valve unit, the valve seat, the valve body, and the hinge mechanism are integrally assembled so as to be made into a unit part. The valve unit is attached to and detached from a unit fitting portion in the valve box main body. A pushing tool is provided which exerts pushing force in a direction of pressing a lower surface of the valve unit against the unit fitting portion in accordance with the operation of fitting the lid body in the access hole.