Patents by Inventor Tom English

Tom English 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).

  • Elastomeric railway tie pad
    Patent number: 7278588
    Abstract: An elastomeric member is arranged beneath a railroad tie to adjust the modulus of track over a relatively stiff structure such as a bridge or tunnel. Methods or combinations that include an elastomeric member are employed to reduce the modulus of a track over a relatively stiff structure to a magnitude approximating the modulus of track over the terrain surrounding the structure.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: October 9, 2007
    Assignee: Northwest Rubber Extruders, Inc.
    Inventors: Tom English, Joe Lucas, Jr., Dean Putnam
  • Elastomeric railway tie pad
    Publication number: 20060097064
    Abstract: An elastomeric member is disclosed that adjusts the modulus of track over a rigid structure such as a bridge or a tunnel. Methods that employ such an elastomeric member to reduce the modulus of the track over the structure to a magnitude approximating the modulus of track over the terrain surrounding the structure are also disclosed.
    Type: Application
    Filed: November 8, 2004
    Publication date: May 11, 2006
    Inventors: Tom English, Joe Lucas, Dean Putnam