Patents by Inventor Emil Fels

Emil Fels 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 mounting pipe flanges in the wall of a pressure vessel
    Patent number: 3934787
    Abstract: A method for welding of steel pipe to a pressure vessel comprising the steps of cutting an opening in the wall of the pressure vessel, joining a connection member which consists of a thickened rim or lenticularly shaped disc, aligning the disc with a bore at a right angle to a tangential plane of the outer surface of the connection member, and welding in two specific areas whereby said first weld at the rim of said forged disc to the wall of said pressure vessel has greater strength against notch breaking at the thicker portion and the second welding at the opening of the wall of said pressure vessel provides a smooth transition.
    Type: Grant
    Filed: June 17, 1974
    Date of Patent: January 27, 1976
    Assignee: Buss, A.G.
    Inventor: Emil Fels