Patents by Inventor Philip J. Urwin

Philip J. Urwin 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).

  • Method of making a liquid feedstock from a plurality of pulp sheet stock rolls
    Patent number: 5484508
    Abstract: A method of making feedstock from material supplied in rolls of flexible sheet material which comprises the steps of creating a pluri-layer web of "n" different layers of sheet material, each layer being selected with regard to some known parameter property of the sheet material whereby the pluri-layer web has an aggregate value of the selected parameter which lies within a chosen range of values of said parameter property. Conveniently the feedstock is created by disintegrating the pluri-layer web to create a mass of comminuted pieces of sheet material.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: January 16, 1996
    Assignee: Courtaulds Fibres (Holdings) Ltd.
    Inventors: Philip J. Urwin, Iain R. Jack
  • Flow meter
    Patent number: 5399859
    Abstract: A basis weight scanner using a beta-ray source and an electron detector on opposite sides of a web of wood pulp sheeting is used to calculate the weight of wood pulp advanced past a measuring location (e.g. into a cellulosic fibre production plant).
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: March 21, 1995
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: Gary E. G. Gray, Philip J. Urwin