Patents by Inventor Karl-Imgemar Blomsterberg

Karl-Imgemar Blomsterberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of anodically deburring articles of copper or copper alloy
    Patent number: 4405422
    Abstract: Articles of copper or copper alloy are anodically deburred in an acid solution (pH not above 6.5) containing______________________________________ grams per liter ______________________________________ water 100 to 300 alkali sulphamate 50 to 150 polyhydric alcohol 400 to 800 alkali nitrate 50 to 150. ______________________________________The bath voltage is to be within the range of 5 to 30 volts, and the current density (at the anode) is to be within the range of 2 to 50 amperes per square decimeter.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: September 20, 1983
    Inventor: Karl-Imgemar Blomsterberg