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. 17, 1984
Filed:
Apr. 06, 1983
Applicant:
Inventor:
Wolfgang Glaeser, Goslar, DE;
Assignee:
Grillo-Werke AG, Duisburg-Hamborn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420513 ; 429230 ;
Abstract
Zinc powder containing mercury for alkaline batteries are prepared by reacting zinc powder with metallic mercury in the presence of amalgamation aids with agitation in a closed system, at a partial oxygen pressure of less than 100 mbar, while the volatile parts are continually exhausted, then raising the partial value of atmosphere air. Additional alloying elements can be added to reduce the gas development, by mixing zinc powder with metallic mercury in which is dissolved a part or the entire quantity of the required alloying elements.