Patents by Inventor Gregory J. Askew

Gregory J. Askew 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 manufacture of nonwoven fabric
    Patent number: 6358461
    Abstract: A method of manufacture of a nonwoven cellulose fabric is disclosed. The fabric is made from fibers formed by extrusion of a solution of cellulose through a spinning jet. The extruded fiber is attenuated with a high velocity gas flow, and the attenuated fiber is collected on a surface (such as the curved surface of a rotating drum) on which the fiber web is subsequently coagulated. Apparatus for carrying out the method is also disclosed. The method and apparatus permit the manufacture of a nonwoven lyocell fabric web in which fibers are bonded together without the use of a binder.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 19, 2002
    Assignee: Tencel Limited
    Inventors: Stephen J. Law, Heather Street, Gregory J. Askew
  • Battery separators
    Patent number: 6258488
    Abstract: A battery (31) having a battery separator (34, 35, 36) which is made from a cellulose film formed from a solution of cellulose in an amine oxide solvent. The separator performs well in alkaline battery cells to operationally separate the different polarity electrodes (32,33).
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: July 10, 2001
    Assignee: Tencel Limited
    Inventors: Gregory J. Askew, Stephen J. Law, Heather Street