Patents by Inventor David TIGUE

David TIGUE 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 and apparatus for installing a rail on a tie in a railroad system
    Patent number: 10519608
    Abstract: A plate assembly for securing a rail to a tie that includes a clip and a shoulder with an orifice. At least one of the clip and the shoulder are modified by changing their respective shape to form a positive interference fit therebetween. The modification is provided to ensure that the clip is maintained with its leg partially inserted into the shoulder orifice during staging.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: December 31, 2019
    Assignee: PANDROL LIMITED
    Inventors: Frank Howard Coats, David Tigue, Pelle Duong
  • METHOD AND APPARATUS FOR INSTALLING A RAIL ON A TIE IN A RAILROAD SYSTEM
    Publication number: 20180127924
    Abstract: A plate assembly for securing a rail to a tie that includes a clip and a shoulder with an orifice. At least one of the clip and the shoulder are modified by changing their respective shape to form a positive interference fit therebetween. The modification is provided to ensure that the clip is maintained with its leg partially inserted into the shoulder orifice during staging.
    Type: Application
    Filed: August 14, 2017
    Publication date: May 10, 2018
    Inventors: Frank Howard COATS, David TIGUE, Pelle DUONG