Patents by Inventor Sean Keightley

Sean Keightley 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).

  • Patent number: 10106933
    Abstract: A universal slide-plate includes a body and a drop-in shoulder member with a plurality of retaining members that cooperate to selectively connect the universal slide-plate and a stock rail to a rail platform and/or tie. The universal slide-plate has a slide surface configured to support a moveable point rail thereon. The universal slide-plate may be selectively removed and repositioned relative to a rail platform and/or tie.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 23, 2018
    Assignee: NARSTCO, INC.
    Inventors: Sean Keightley, Michael Del Guerrero, Steven Glenn Smith
  • Publication number: 20160355991
    Abstract: A universal slide-plate includes a body and a drop-in shoulder member with a plurality of retaining members that cooperate to selectively connect the universal slide-plate and a stock rail to a rail platform and/or tie. The universal slide-plate has a slide surface configured to support a moveable point rail thereon. The universal slide-plate may be selectively removed and repositioned relative to a rail platform and/or tie.
    Type: Application
    Filed: May 13, 2016
    Publication date: December 8, 2016
    Inventors: Sean Keightley, Michael Del Guerrero, Steven Glenn Smith
  • Patent number: 7731099
    Abstract: A railway tie is disclosed having stackable decks for reducing ballast migration in areas where the crib is reduced or removed in order to accommodate additional railway equipment. The stackable railway tie can include a base deck, a top deck, and a fastening system for securing the top deck to the base deck. A second fastening system may be integrated in the railway tie for securing one or more rails to the top deck. The top deck can be configured to transmit a load, such as that from the weight of a train, to the base deck. A ballast displacement system can be provided to distribute a load on the base deck to ballast under the railway tie. One or more top decks may be used in connection with electrically insulating the rails. Nonconductive deck spacers and side posts may insulate the top deck from the bottom deck. Side posts may electrically insulate the base deck from the fastener system.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: June 8, 2010
    Assignee: Narstco, Inc.
    Inventor: Sean Keightley
  • Publication number: 20070108308
    Abstract: A railway tie is disclosed having stackable decks for reducing ballast migration in areas where the crib is reduced or removed in order to accommodate additional railway equipment. The stackable railway tie can include a base deck, a top deck, and a fastening system for securing the top deck to the base deck. A second fastening system may be integrated in the railway tie for securing one or more rails to the top deck. The top deck can be configured to transmit a load, such as that from the weight of a train, to the base deck. A ballast displacement system can be provided to distribute a load on the base deck to ballast under the railway tie. One or more top decks may be used in connection with electrically insulating the rails. Nonconductive deck spacers and side posts may insulate the top deck from the bottom deck. Side posts may electrically insulate the base deck from the fastener system.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 17, 2007
    Inventor: Sean Keightley
  • Patent number: 5918806
    Abstract: The invention is an electrically insulated steel railway cross tie for use with railway tracks using track circuit systems. The electrically insulated steel cross tie prevents the cross tie for shorting the track circuit systems. A method of manufacturing the electrically insulated steel cross tie is to transversely cut an uninsulated steel cross tie into separate elongated members. The elongated members are then re-joined end to end with an insulator member interposed between the elongated members. The insulator member prevents electrical current from being conducted from one elongated member to another elongated member. In the preferred embodiment end plates are welded to the cut ends of the elongated members and bolts are used to releasably join the elongated members together. The bolts are electrically insulated to prevent the bolts from conducting electrical current between the elongated members.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: July 6, 1999
    Assignee: North American Steel Tie Corp.
    Inventors: Sean Keightley, Joseph David Sowden Broadbent, Robert Scott Johnston, Brent Andrew Jarvis