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:
Mar. 24, 2020
Filed:
Mar. 15, 2016
Chiyoda Corporation, Yokohama-shi, JP;
Kingo Kasada, Yokohama, JP;
Hidenori Muramatsu, Tokyo, JP;
Hiroaki Suzuki, Tokyo, JP;
Toshitake Sakurai, Tokyo, JP;
Keiichi Uchiyama, Tokyo, JP;
Chiyoda Corporation, Kanagawa, JP;
Abstract
A working sheath tube () is used when a renovating operation of a pump-discharge pipe () branched from a peripheral wall () of a tubular barrel () inserted into a tank () in which a fuel is retained. The working sheath tube has a bottomed tubular shape which can be inserted into the barrel, and has a working space thereinside. A insertion hole () into which a closing member () for closing a pump-discharge pipe is inserted is provided on and penetrates a sheath tube peripheral wall (). While the sheath tube is inserted into the barrel, the insertion hole faces an opening of the pump-discharge pipe.