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:
Sep. 08, 2020
Filed:
Mar. 01, 2018
Surpass Industry Co., Ltd., Saitama, JP;
Masahiro Hasunuma, Saitama, JP;
Surpass Industry Co., Ltd., Gyoda-shi, Saitama, JP;
Abstract
Provided is a plug device which includes: a body portion; and a valve element portion. A fluid flow passage is formed in the body portion. The fluid flow passage extends along an axis, and has a valve hole at one end thereof. The valve element portion is accommodated in the body portion in an advancing and retracting manner along the axis. A proximal end portion of the valve element portion is made of a conductive fluororesin material containing a fluororesin material and carbon nanotubes dispersed in the fluororesin material. The proximal end portion is conductive with a conductive member maintained at a ground potential. A volume resistivity of the conductive fluororesin material falls within a range of larger than 1.0x×10Ω·cm and less than 1.0×10Ω·cm.