Patents by Inventor Lasse Lappanen

Lasse Lappanen 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).

  • Cloth for a paper machine
    Patent number: 4917937
    Abstract: The invention relates to a cloth for a paper machine, comprising a fabric formed of threads of a synthetic material. In the cloth, reinforcements extending substantially longitudinally of the cloth are positioned at predetermined points. The reinforcements are formed be feeding molten plastic material in a narrow stripe on to the surface of the cloth. In order to improve the wear properties of the wire, the directions of the stripes forming the reinforcement are arranged to deviate locally from the longitudinal direction of the cloth.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: April 17, 1990
    Assignee: Tamfelt Oy Ab
    Inventors: Lasse Lappanen, Seppo Taipale