Patents by Inventor Todd W. Kirkpatrick

Todd W. Kirkpatrick 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).

  • Multi-piece shaft
    Patent number: 9359144
    Abstract: A method of manufacturing a multi-piece shaft for an idler roller. The method includes providing a tube having a first end and a second end, mechanically crimping the first end of the tube to a first stub to secure the first stub to the first end of the tube with a mechanical interlock, and mechanically crimping the second end of the tube to a second stub to secure the second stub to the second end of the tube with a mechanical interlock. The first stub extends from the first end of the tube and the second stub extends from the second end of the tube.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 7, 2016
    Assignee: Joy MM Delaware, Inc.
    Inventors: David R. White, Todd W. Kirkpatrick
  • Idler roll ball bearing assembly and method of making
    Patent number: 9273731
    Abstract: An idler roll bearing assembly, made by a method, includes a shaft having a non-grooved outer surface. A shell extends about the shaft and is rotatable relative to the shaft. A rolling bearing is secured to the shaft. A roll head is secured to the rolling bearing. The roll head includes a portion preventing axial displacement of the rolling bearing. The shell is supported for the relative rotation by the roll head. A retaining sleeve is located on the shaft to prevent axial displacement of the rolling bearing. The sleeve has an interior surface in engagement with the non-grooved outer surface of the shaft. An inner diameter of the sleeve and an outer diameter of the shaft are sized such that the sleeve is secured onto the shaft by frictional interference fit and the sleeve is maintained at a position on the shaft by the frictional interference.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 1, 2016
    Assignee: Joy Global Conveyors Inc.
    Inventors: Todd W. Kirkpatrick, Robert H. Wheeler
  • MULTI-PIECE SHAFT
    Publication number: 20150266674
    Abstract: A method of manufacturing a multi-piece shaft for an idler roller. The method includes providing a tube having a first end and a second end, mechanically crimping the first end of the tube to a first stub to secure the first stub to the first end of the tube with a mechanical interlock, and mechanically crimping the second end of the tube to a second stub to secure the second stub to the second end of the tube with a mechanical interlock. The first stub extends from the first end of the tube and the second stub extends from the second end of the tube.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Inventors: David R. White, Todd W. Kirkpatrick
  • Multi-piece shaft
    Patent number: 9056727
    Abstract: A multi-piece shaft for an idler roller including a tube having a first end and a second end. The shaft includes a first stub secured to the first end of the tube by a mechanical interlock and a second stub secured to the second end of the tube by a mechanical interlock. The first stub extends from the first end and the second stub extends from the second end when secured to the tube such that the tube, the first stub and the second stub define a length of the shaft.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 16, 2015
    Assignee: Joy MM Delaware, Inc.
    Inventors: David R. White, Todd W. Kirkpatrick
  • MULTI-PIECE SHAFT
    Publication number: 20140202823
    Abstract: A multi-piece shaft for an idler roller including a tube having a first end and a second end. The shaft includes a first stub secured to the first end of the tube by a mechanical interlock and a second stub secured to the second end of the tube by a mechanical interlock. The first stub extends from the first end and the second stub extends from the second end when secured to the tube such that the tube, the first stub and the second stub define a length of the shaft.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Inventors: David R. White, Todd W. Kirkpatrick
  • IDLER ROLL BALL BEARING ASSEMBLY AND METHOD OF MAKING
    Publication number: 20080153683
    Abstract: An idler roll bearing assembly, made by a method, includes a shaft having a non-grooved outer surface. A shell extends about the shaft and is rotatable relative to the shaft. A rolling bearing is secured to the shaft. A roll head is secured to the rolling bearing. The roll head includes a portion preventing axial displacement of the rolling bearing. The shell is supported for the relative rotation by the roll head. A retaining sleeve is located on the shaft to prevent axial displacement of the rolling bearing. The sleeve has an interior surface in engagement with the non-grooved outer surface of the shaft. An inner diameter of the sleeve and an outer diameter of the shaft are sized such that the sleeve is secured onto the shaft by frictional interference fit and the sleeve is maintained at a position on the shaft by the frictional interference.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Applicant: Continental Conveyor & Equipment Co.
    Inventors: Todd W. Kirkpatrick, Robert H. Wheeler