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:
Feb. 06, 1996
Filed:
Aug. 24, 1994
Yukiko Nishioka, Kanagawa, JP;
Ichiro Kamiya, Tokyo, JP;
Ryoichi Shinjo, Kanagawa, JP;
Yoshihiro Ishii, Kanagawa, JP;
Koichi Kosaka, Tokyo, JP;
Ebara Corporation, Tokyo, JP;
Abstract
The present invention provides a method for deodorizing and refreshing petroleum group solvent used in a dry cleaning apparatus, and a dry cleaning apparatus using such a method, which can maintain the circulating solvent in a fresh condition for a long time, eliminate a bad smell of the solvent, provide highly stable cleaning ability and good cleaning finish, and prevent ignition and explosion of the solvent to ensure safety. In the dry cleaning apparatus, the petroleum group solvent in a solvent storage tank 2 is pumped by a circulating pump 5, is supplied to a cleaning bath 8 through a filter 6 and carbon absorbent 7 and then is returned from the cleaning bath 8 to the solvent storage tank 2 through a button trap 3, and an ozone generating device 10 is provided for generating ozone gas and a diffuser 11 for pouring the ozone gas produced by the ozone generating device 10 Into the petroleum group solvent as fine bubbles are arranged to be contacted with a bottom surface of the solvent storage tank 2 or the button trap 3.