Patents by Inventor Carl Olof Swanberg

Carl Olof Swanberg 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: 4112982
    Abstract: A forming wire for use in paper-making, cellulose and similar machines, comprising a first layer of weft threads, which layer is intended in the position of use of the wire to face the material to be formed, a second layer of weft threads, which layer is intended in the position of use of the wire to face the machine drive rollers, and synthetic warp threads interweaving said two weft layers. Said first layer of weft threads crosses said warp threads on said outer face of the wire closest to the material to be formed, in at least 80% of all cross points, or according to the shaft (harness) number used in between 80% and 90% of all cross points, whereby the wefts on the wire face turned towards the material to be formed float over a large number of warps. The number of cross points on this wire face thus is reduced, eliminating the tendency of the wire to cause marking on sensitive paper qualities.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: September 12, 1978
    Assignee: Nordiska Maskinfilt Aktiebolaget
    Inventors: Hans Jorgen Bugge, Ingvald Strandly, Carl Olof Swanberg