Patents by Inventor John Kirckof

John Kirckof 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).

  • TEMPORARY RAISED PAVEMENT MARKER ( TRPM) APPLICATOR MACHINE FOR AUTOMATICALLY APPLYING PAVEMENT MARKERS TO ROAD SURFACES
    Publication number: 20040057796
    Abstract: Apparatus and method for applying temporary raised pavement markers (TRPM) to roadway surfaces comprises primary and auxiliary conveyors wherein an upstream end portion of the primary conveyor is able to extend, for example, over the rear bed portion of a roadwork truck so as to permit an operator, stationed upon the bed portion of the truck, to deposit pavement markers upon the primary conveyor. In accordance with a first embodiment of the invention, a slide mechanism is disposed adjacent to a downstream end portion of the primary conveyor and adjacent to an upstream end portion of the auxiliary conveyor for transferring pavement markers from the primary conveyor to the auxiliary conveyor when the absence of a pavement marker upon the auxiliary conveyor is detected. When pavement markers are present upon both conveyors, the pavement markers are conducted to applicator mechanisms for application to the roadway surface.
    Type: Application
    Filed: September 20, 2002
    Publication date: March 25, 2004
    Inventors: Jeffrey Rogers, Michael Christensen, John Kirckof, Jeffrey Arnold Wilkens, Brad Anderson
  • Temporary raised pavement marker (TRPM) applicator machine for automatically applying pavement markers to road surfaces
    Patent number: 6709193
    Abstract: Apparatus and method for applying temporary raised pavement markers (TRPM) to roadway surfaces comprises primary and auxiliary conveyors wherein an upstream end portion of the primary conveyor is able to extend, for example, over the rear bed portion of a roadwork truck so as to permit an operator, stationed upon the bed portion of the truck, to deposit pavement markers upon the primary conveyor. In accordance with a first embodiment of the invention, a slide mechanism is disposed adjacent to a downstream end portion of the primary conveyor and adjacent to an upstream end portion of the auxiliary conveyor for transferring pavement markers from the primary conveyor to the auxiliary conveyor when the absence of a pavement marker upon the auxiliary conveyor is detected. When pavement markers are present upon both conveyors, the pavement markers are conducted to applicator mechanisms for application to the roadway surface.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: March 23, 2004
    Assignee: Illinois Tool Works Inc.
    Inventors: Jeffrey Rogers, Michael Christensen, John Kirckof, Jeffrey Arnold Wilkens, Brad Anderson