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:
Jun. 15, 2004
Filed:
Jun. 05, 2003
Katsumi Imada, Nara, JP;
Atsushi Komatsu, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a cooling device including a pump, a heat absorber, a heat radiator, a flow channel that allows communication between interiors thereof and forms a closed-loop circulating cycle therebetween, and a liquid refrigerant that circulates in the flow channel, a volume of a gas generated in the liquid refrigerant owing to temperature change within an operating temperature range of the liquid refrigerant is smaller than a volume of a sphere that is inscribed in a cross-section of the flow channel. In this way, even when the solubility changes due to rapid heating or cooling of the liquid refrigerant, no gas is generated in the liquid refrigerant. Thus, it is possible to provide a cooling device that maintains an excellent cooling effect even after a long time use.