Patents by Inventor Lars B. Osterberg

Lars B. Osterberg 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).

  • Guide line in an endless travelling web
    Patent number: 4652736
    Abstract: In a machine cloth is disposed a guide line which extends in the crosswise direction of the cloth. The configuration of the guide line is sensed by sensors and is displayed on a screen so that distortions or deviations in the machine cloth becomes visible to the operators who may rapidly take measures to correct the incorrect position of the machine cloth.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: March 24, 1987
    Assignee: Nordiskafilt AB
    Inventor: Lars B. Osterberg
  • Forming fabric
    Patent number: 4501303
    Abstract: A forming fabric comprising an upper layer which is intended to serve as the paper-forming side and consists of thinner yarns, and a bottom layer which consists of coarser yarns. The two layers are interconnected in that threads form the upper layer alternately pass downwardy to interweave with the bottom layer and in the upper layer replace one another in such a manner that together these threads form the same weave pattern with the upper layer as the rest of the yarns in that layer, which yarns do not interweave with the bottom layer.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: February 26, 1985
    Assignee: Nordiskafilt AB
    Inventor: Lars B. Osterberg
  • Method for separating a paper web from a forming fabric in a paper-making machine
    Patent number: 4154648
    Abstract: A method for the separation of the paper web from the forming fabric in a paper-making machine comprising dividing the web into lengthwise strips to lessen the web adherence to the wire by utilization of a spray means incorporating a plurality of nozzles and then effecting web knock-down and separation from the wire by use of a slotted spray through which pressurized air jets are directed.Through this method very low pressures are required to achieve web separation and the risks of re-contact between web and wire are positively prevented.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: May 15, 1979
    Assignee: Nordiska Maskinfilt Aktiebolaget
    Inventors: Lars B. Osterberg, Bengt A. Unneberg