Patents by Inventor Paul B. Trendall

Paul B. Trendall 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).

  • Apparatus for controlling the deposition of a liquid on to a moving surface
    Patent number: 4427491
    Abstract: A jet of liquid (3) is deposited from a reservoir outlet (2) on to a moving surface (4) located below the outlet. Deposition is effected by discharging a jet of the liquid on to the underside of a curved guide member (5) which is disposed between the outlet and the moving surface and which is oriented so as to cause the liquid to flow down the member on its underside so that its direction of flow approaches the direction of travel of the moving surface.The invention is particularly advantageous in the production of paper webs, especially multi-layer paper webs on a Fourdrinier paper-making machine.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: January 24, 1984
    Assignee: The Wiggins Teape Group Limited
    Inventors: Bronislaw Radvan, Vaughan W. Punton, Paul B. Trendall
  • Process and apparatus for controlling the deposition of a liquid on to a moving surface
    Patent number: 4345970
    Abstract: Process and apparatus for controlling the deposition of a liquid on to a moving surface.A jet of liquid (3) is deposited from a reservoir outlet (2) on to a moving surface (4) located below the outlet. Deposition is effected by discharging a jet of the liquid on to the underside of a curved guide member (5) which is disposed between the outlet and the moving surface and which is oriented so as to cause the liquid to flow down the member on its underside so that its direction of flow approaches the direction of travel of the moving surface.The invention is particularly advantageous in the production of paper webs, especially multi-layer paper webs on a Fourdrinier paper-making machine.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: August 24, 1982
    Assignee: The Wiggins Teape Group Limited
    Inventors: Bronislaw Radvan, Vaughan W. Punton, Paul B. Trendall