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:
May. 06, 2008
Filed:
Sep. 22, 2003
Nobuhiro Asada, Moriguchi, JP;
Mitsuru Naganawa, Moriguchi, JP;
Masafumi Nishino, Moriguchi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The present invention provides a dry-cleaning machine capable of performing a water-repellent finishing process when necessary, while ensuring a high level of safety. When the water-repellent finishing process has been performed after the drying process (Step S), the solvent contained in the water repellent penetrates into the laundry articles. Taking this into account, the upper limit for the temperature difference ?T between the inlet and outlet of the drum detected is set lower (e.g. 10° C.) than that the upper limit (e.g. 20° C.) applied to the case where no water-repellent finishing process is performed. This temperature setting reduces the amount of heat supplied to the laundry articles and accordingly decreases the evaporating speed of the solvent. Thus, the concentration of the gasified solvent in the air-circulating passage is maintained under the safety level. In this case, the time period for the drying operation is set longer to compensate for the deterioration in the drying efficiency.