Patents by Inventor Alf Lindström

Alf Lindström 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).

  • Screen panel and method of its manufacture
    Patent number: 6216877
    Abstract: Screen panels are disclosed for the screening of fibrous material. The screen panels are one-piece screen panels which can then be incorporated into a cylindrical screen jacket without the use of welding. The screen panels include a plurality of apertures for the fibrous material and are made from a wear-resistant material. Methods for producing these screen panels are also disclosed.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 17, 2001
    Assignee: Valmet Fibertech Aktiebolag
    Inventor: Alf Lindström