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:
Jan. 30, 1979
Filed:
Apr. 08, 1977
Applicant:
Inventors:
Olavi A Ebeling, Helsinki, FI;
Risto W Lunden, Helsinki, FI;
Assignee:
Oy Kontekla, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
128212 ;
Abstract
A respiration mask comprising a mask portion and a heat exchanger through which inhalation and exhalation air flows for the recovery of humidity and humidity contained in the exhalation air. The heat exchanger consists a continuous strip of wire netting wound helically to form a cylindrical netting roll comprising several turns. The flow of air takes place radially through the netting roll.