Patents by Inventor Timothy N. Ashworth

Timothy N. Ashworth 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: 4813156
    Abstract: In order to reduce the adverse effects of overpressure on a paper sheet existing at the outer face of a dryer fabric moving in contact with a dryer cylinder in the dryer section of a paper machine, it is proposed to provide void-spaces at the fabric-cylinder interface, or the equivalent, arranged in fluid flow connection with that space in which boundary air moving with the fabric towards the position of engagement of the fabric with the cylinder is progressively compressed, as the fabric moves into contact with the cylinder.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: March 21, 1989
    Assignee: Scapa-Porritt Limited
    Inventors: Timothy N. Ashworth, Brian G. Littler