Overlap Patents (Class 246/429)
  • Patent number: 9932054
    Abstract: A derailer for use in a railroad system, has an outside switch point that selectively overlays a running surface of a first mainline track and rises above the running surface of the first mainline track and an outside switch rail mechanically fastened to the outside switch point. The derailer also includes an inside switch rail including a second switch point that selectively lies adjacent a head of a second mainline track and terminates between the first and second mainline tracks.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: April 3, 2018
    Assignee: Progress Rail Services Corporation
    Inventors: Brian Weaver, Phillip Merrifield, Russell Hein
  • Patent number: 7604205
    Abstract: A turnout for a railway track having a raised track surface to provide a path along which the wheels of a train can travel from one railway track to another. The raised track surface is of a sufficient height such that the wheels of the train are arranged to clear each railway track being crossed. The turnout facilitates Single Line Working on a second railway track to clear a first railway track for maintenance or other purposes. Pot sleepers for supporting rails of a railway track and a method of installing them is also provided.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: October 20, 2009
    Assignee: Scott-Track Limited
    Inventor: Donald McCallum
  • Patent number: 7434768
    Abstract: A portable turnout system for temporary connection of a rail line to a spur line includes a ramp section having a frame and two parallel rails mounted thereon, the parallel rails each having a forward end and a rearward end higher than the forward end such that the parallel rails have a positive grade from forward end to rearward end and a portable transfer track including at least one portable track section having a frame and two parallel rails mounted thereon, the portable transfer track releasably connectable at one end thereof to the rearward end of the parallel rails of the ramp section in an elevated position above the rail line. At least one portable transfer track support device supports the portable transfer track in the elevated position above the rail line and the portable transfer track is releasably connectable at the opposite end thereof to a spur line.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 14, 2008
    Inventors: John J. Humphrey, Dean Wieser
  • Patent number: 5354018
    Abstract: An apparatus for switching a railroad car wheel from a first rail to a second rail including a base and a ramp member. The ramp member is hingedly connected to the base. The ramp member extends from the first rail to the second rail. The ramp member has a first angled portion at one end and a second angled portion at another end. The ramp member has a generally flat surface between the angled portions and has a thickness of greater than one and one-half inches. A frame extends upwardly from the base so as to support a hinge. The hinge extends in parallel relation to the base and to the ramp member. The ramp member is connected to the hinge by a plurality of struts. A lever-receiving receptacle is fastened to one of the struts so as to move in relation to the movement of the ramp member.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: October 11, 1994
    Inventor: Edwin deS. Snead