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:
Nov. 12, 2019
Filed:
Mar. 24, 2016
Tacmina Corporation, Osaka, JP;
Syunsuke Nakanishi, Asago, JP;
Tacmina Corporation, Osaka, JP;
Abstract
Disclosed is a check valve reliably closing a fluid path without the need of machining with high accuracy. The check valve includes a pair of members with clamping surfaces; and a valve body clamped by the clamping surfaces from both sides in a thickness direction of the valve body. The valve body is formed from an elastic body and includes an outer frame, a sealing part arranged inside the outer frame and configured to open and close a fluid path formed in one of the pair of members, and a coupling part configured to allow fluid to pass therethrough in the thickness direction and configured to couple the outer frame and the sealing part to each other. The outer frame has a thickness larger than an interplane dimension between the clamping surfaces when the pair of members are joined together.