Patents by Inventor Howard W. Kronenwetter

Howard W. Kronenwetter 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).

  • Patent number: 4055271
    Abstract: An improved sheet metal container and method of forming the same are provided in which the container comprises a body member and an end member wherein the body member is provided with a body flange extending generally radially outwardly at the end thereof, and the end member is provided with a wall which fits within the body member and an end flange extending generally radially outwardly at the end thereof rolled into a seam with the body flange. The body flange is curled at its terminal end against a coating provided on the metal surface of the body member and the end flange is curled at its terminal end against a coating provided on the metal surface of the end member to isolate the metals having different electrode potentials in order to resist galvanic corrosion.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: October 25, 1977
    Assignee: Aluminum Company of America
    Inventors: Howard W. Kronenwetter, Freddy R. Schultz