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:
Oct. 13, 1987
Filed:
Mar. 13, 1986
Heinrich Fieseler, Dormagen, DE;
Klemens Thoma, Krefeld-Huls, DE;
Messer Griesheim GmbH, , DE;
Abstract
A device is provided for producing a cold treatment gas from nitrogen and air for the cryotherapy of rheumatic diseases in which liquid nitrogen vaporizes and is mixed in the desired ratio with the dry air which is at a higher pressure. The device includes a vessel for the storage of the liquid nitrogen which has a capacity for carrying out at least one or more treatments. Heat exchanging apparatuses are installed in the vessel for channeling a portion of the air which is at a higher pressure. A blending intersection for blending vaporized nitrogen, cooled air and non-cooled air is attached to the vessel. A blower is provided with a dryer having an outlet pipe which branches to a connection with the blending intersection and to a connection with the heat exchanging apparatus.