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:
Jul. 02, 2002
Filed:
Oct. 19, 2000
Nobuo Okumura, Toyota, JP;
Takanori Hamajima, Aichi-ken, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A cryogenic refrigerating device comprising includes an adiabatic vacuum tank, a refrigerator having at least a low temperature generating portion of the refrigerator accommodated in the adiabatic vacuum tank, an adsorption panel attached to the low temperature generating portion of the refrigerator at a location for adsorbing molecules floating in a vacuum in the adiabatic vacuum tank, and a selective sorbing device provided in the adiabatic vacuum tank at a location for sorbing selected molecules floating in the adiabatic vacuum tank. The molecules in the adiabatic vacuum tank are adsorbed by either the panel or by the adsorbing device for keeping the vacuum pressure level in the tank constant for a long period of time.