Patents by Inventor Timo Kassi

Timo Kassi 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 for joining metal parts by roll forming for manufacturing a cooking vessel
    Patent number: 6061892
    Abstract: A method for joining two or more metal parts (1, 2) together. According to the invention, the joining is carried out by using roll forming techniques by placing the metal parts (1, 2) on top of each other on the form face (7) of a tool (4) which is made to rotate, and by arranging the topmost part (1) in linear roll contact with a forming tool (6) which is also in rotational movement, whereby the malleable deformation of the metal in the slot between the tools integrates the parts together. A mesh or perforated plate (2) of harder metal in particular can be joined to the sheet-like part (1) of a softer metal by using roll forming, by making the metal ingredient of the latter to penetrate the apertures (12) in the former.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: May 16, 2000
    Assignee: Rondex Oy Ltd.
    Inventor: Timo Kassi