Patents by Inventor Alex Ray Hobson

Alex Ray Hobson 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).

  • Fluoropolymer coated elastomeric rollers and structures
    Patent number: 5798181
    Abstract: The present invention is an improved release coating for use on a variety of elastomeric structures, such as printer rollers and belts. The coating of the present invention is a thin expanded polytetrafluoroethylene skin that has a porous surface attached to a substratum and an impermeable surface exposed as the contact surface. This use of dual surfaces on a single thin coating provides both an excellent bond to substratum materials, such as a silicone elastomer layer, as well as being highly wear resistant and resistant to chemical attack.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: August 25, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Alex Ray Hobson, Robert L. Sassa, Steven H. Speck, Tit-Keung Lau
  • Fluoropolymer coated elastomeric rollers and structures
    Patent number: 5744241
    Abstract: The present invention is an improved release coating for use on a variety of surfaces, such as printer rollers and belts. The coating of the present invention is an thin expanded polytetrafluoroethylene skin that has a porous surface attached to a substratum and an impermeable surface exposed as the contact surface. This use of dual surfaces on a single thin coating provides both an excellent bond to substratum materials, such as a silicone elastomer layer, as well as being highly wear resistant and resistant to chemical attack.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: April 28, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Alex Ray Hobson, Robert L. Sassa, Steven H. Speck, Tit-Keung Lau