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. 15, 1986
Filed:
Mar. 09, 1984
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
324439 ; 73 28 ; 7386321 ; 204409 ;
Abstract
A device for continuously monitoring variations of the density of sodium ions borne by atmospheric air. A water tank is provided having a fixed volume with a top thereof opened to the atmosphere. Pure water, having a resistivity of at least 15 M.OMEGA..multidot.cm is continuously supplied into the tank and extracted therefrom at the same rate. The conductivity or resistivity of the extracted water is measured to determine the sodium ion concentration in the air. For small densities, a sodium ion electrode meter can be employed for measuring the sodium ion density.