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:
Jan. 05, 2021
Filed:
Nov. 27, 2018
Surpass Industry Co., Ltd., Saitama, JP;
Hiroki Igarashi, Saitama, JP;
SURPASS INDUSTRY CO., LTD., Gyoda, JP;
Abstract
To prevent a defect in which a liquid is retained in a vicinity of a valley of a bellows part and particles such as impurities are accumulated. Provided is a valve including a valve element part and a diaphragm part that is coupled to the valve element part. The diaphragm part includes a base, a tip part, and a bellows part that couples between the base and the tip part. A wetted part in contact with the liquid at the tip part is formed in a cylindrical shape extending along a shaft line X. A lower end part of the bellows part is connected to the wetted part in a connection position CP coinciding with an outer peripheral surface of the wetted part. The valley of the bellows part is disposed in the connection position CP.