Patents by Inventor Phillip R. Merrifield

Phillip R. Merrifield 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: 9988768
    Abstract: The disclosure provides a guard bar restraint for restricting movement of a guard bar. The guard bar restraint includes a hook block coupled to the front face of the guard bar, a back plate configured to contact the back face of the guard bar, and at least one fastener configured to hold the hook block against the front face of the guard bar and to hold the back plate against the back face of the guard bar. The guard bar restraint is coupleable to the guard bar and configured to allow no more than a maximum predetermined amount of lateral movement by the guard bar.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 5, 2018
    Assignee: Progress Rail Services Corporation
    Inventors: Brian F. Weaver, Phillip R. Merrifield
  • Publication number: 20180030661
    Abstract: The disclosure provides a guard bar restraint for restricting movement of a guard bar. The guard bar restraint includes a hook block coupled to the front face of the guard bar, a back plate configured to contact the back face of the guard bar, and at least one fastener configured to hold the hook block against the front face of the guard bar and to hold the back plate against the back face of the guard bar. The guard bar restraint is coupleable to the guard bar and configured to allow no more than a maximum predetermined amount of lateral movement by the guard bar.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 1, 2018
    Applicant: PROGRESS RAIL SERVICES CORPORATION
    Inventors: Brian F. WEAVER, Phillip R. MERRIFIELD
  • Patent number: 8313041
    Abstract: A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: November 20, 2012
    Assignee: Cleveland Track Material, Inc.
    Inventors: James A. Remington, Karl E. Axthelm, Phillip R. Merrifield
  • Publication number: 20110204155
    Abstract: A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 25, 2011
    Inventors: James A. Remington, Karl E. Axthelm, Phillip R. Merrifield
  • Publication number: 20100108773
    Abstract: A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail.
    Type: Application
    Filed: January 4, 2010
    Publication date: May 6, 2010
    Inventors: James A. Remington, Karl E. Axthelm, Phillip R. Merrifield
  • Patent number: 7641128
    Abstract: A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: January 5, 2010
    Assignee: Cleveland Track Material, Inc.
    Inventors: James A. Remington, Karl E. Axthelm, Phillip R. Merrifield
  • Publication number: 20080000999
    Abstract: A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: James A. Remington, Karl E. Axthelm, Phillip R. Merrifield