Patents by Inventor David P. Ollendick

David P. Ollendick 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).

  • Automatic pre-fabrication of plated railroad ties and sections of railroad track
    Publication number: 20190226154
    Abstract: Novel systems and methods are disclosed for fully automated creation of plated ties and/or pre-fabricated sections of railroad track away from and for shipment to an installation site.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 25, 2019
    Inventors: David P. Ollendick, Timothy E. Ovel
  • Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like
    Publication number: 20030113395
    Abstract: Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon which it rests. In one version of the apparatus two bridge members confront the opposite ends of the spine and permanent tension resisting members pass beneath the spine from end to end of the spine and are attached to the lower ends of the bridge members. In another version two structural members are embedded in the concrete of the spine and protrude to provide terminal members.
    Type: Application
    Filed: January 24, 2003
    Publication date: June 19, 2003
    Inventors: David P. Ollendick, Robert W. Ollendick
  • System and assembly for the manufacturing of prestressed reinforced concrete railroad ties and the like
    Patent number: 6561780
    Abstract: Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon which it rests. In one version of the apparatus two bridge members confront the opposite ends of the spine and permanent tension resisting members pass beneath the spine from end to end of the spine and are attached to the lower ends of the bridge members. In another version two structural members are embedded in the concrete of the spine and protrude to provide terminal members.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: May 13, 2003
    Inventors: David P. Ollendick, Robert W. Ollendick
  • Method for manufacturing prestressed reinforced concrete railroad ties
    Patent number: 6374475
    Abstract: Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon which it rests. In one version of the apparatus two bridge members confront the opposite ends of the spine and permanent tension resisting members pass beneath the spine from end to end of the spine and are attached to the lower ends of the bridge members. In another version two structural members are embedded in the concrete of the spine and protrude to provide terminal members.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: April 23, 2002
    Inventors: David P. Ollendick, Robert W. Ollendick
  • Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like
    Publication number: 20020029451
    Abstract: Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon which it rests. In one version of the apparatus two bridge members confront the opposite ends of the spine and permanent tension resisting members pass beneath the spine from end to end of the spine and are attached to the lower ends of the bridge members. In another version two structural members are embedded in the concrete of the spine and protrude to provide terminal members.
    Type: Application
    Filed: June 12, 2001
    Publication date: March 14, 2002
    Inventors: David P. Ollendick, Robert W. Ollendick
  • Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like
    Patent number: 5747074
    Abstract: Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon which it rests. In one version of the apparatus two bridge members confront the opposite ends of the spine and permanent tension resisting members pass beneath the spine from end to end of the spine and are attached to the lower ends of the bridge members. In another version two structural members are embedded in the concrete of the spine and protrude to provide terminal members.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: May 5, 1998
    Inventors: David P. Ollendick, Robert W. Ollendick