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. 20, 2018
Filed:
Oct. 16, 2015
Softard Industries Co., Ltd., Tokyo, JP;
Jx Nippon Oil & Energy Corporation, Tokyo, JP;
Katsuhiko Kawakami, Tokyo, JP;
Guiqing Xu, Tokyo, JP;
Masayuki Kidokoro, Tokyo, JP;
Yasuo Uchida, Tokyo, JP;
Masanao Kato, Tokyo, JP;
Masanao Mitsuhata, Tokyo, JP;
Shouzou Sugihara, Kanagawa, JP;
Tsukasa Mitsuta, Tokyo, JP;
Takayuki Nakazawa, Tokyo, JP;
SOFTARD INDUSTRIES CO., LTD., Tokyo, JP;
JXTG NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
Abstract
Crude oil is discharged from an oil tank. A nozzle is inserted into a support opening formed in advance on a roof of the oil tank. A cleaning liquid containing LCO is injected from the nozzle over the sludge accumulated inside the oil tank after the crude oil is discharged from the oil tank. The cleaning liquid in which the sludge is dissolved is discharged from the oil tank and is returned to the oil tank for recycle cleaning. Subsequently, the cleaning liquid in which the sludge is dissolved is discharged from the oil tank.