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:
Mar. 04, 1997
Filed:
Jan. 11, 1995
Applicant:
Inventor:
Lars Stormbom, Vantaa, FI;
Assignee:
Vaisala OY, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204284 ; 2042 / ; 204292 ; 20419215 ; 4272481 ; 427250 ; 427566 ; 427567 ; 427597 ; 427404 ; 427405 ; 4274192 ;
Abstract
The invention relates to a method of producing a microporous, gas permeable electrode structure, and to a corresponding electrode structure. According to the method, on a substrate (2) by means of a vacuum evaporation process is formed a first microporous electrode layer (4) using an angle (.alpha.) between the substrate (2) and the evaporation source (1) smaller than 90.degree.. According to the invention, on the first microporous layer (4) is formed another microporous layer (5) of a precious metal using essentially the same evaporation angle (.alpha.) as in the fabrication step of the first microporous layer (4).