Patents by Inventor Darrell Keith Knigge

Darrell Keith Knigge 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).

  • CONVEYOR HAVING A CATENARY IN THE RETURN PATH
    Publication number: 20140262694
    Abstract: Curved conveyors are disclosed herein. An embodiment of a curved conveyor includes a first end and a second end. Items to be conveyed are received onto the conveyor at the first end and the items to be conveyed are removed from the conveyor at the second end. The conveyor forms an arc between the first end and the second end. A continuous belt rotates between the first end and the second end along the arc of the curved conveyor. The belt has a forward path during its travel from the first end to the second end and a return path during its travel from the second end to the first end. A chain is attached to the belt wherein the chain forms a catenary in at least a portion of the return path.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: INTERROLL HOLDING AG
    Inventor: Darrell Keith Knigge
  • Conveyor
    Patent number: 8701874
    Abstract: Conveyors are disclosed herein. An embodiment of a conveyor includes a bed having a first end and a second end, wherein a belt is slidable on the bed. The belt is in a first portion of its travel when it is located adjacent the bed and the belt is in a second portion of its travel when it is located opposite the bed. A curve is located on the first end of the bed, wherein the belt contacts at least a portion of the curve as the belt transitions between the first portion of travel and the second portion of travel.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 22, 2014
    Assignee: Interroll Holding AG
    Inventors: Darrell Keith Knigge, Thomas Quintin Harding
  • CONVEYOR DRIVEN BY A CAM
    Publication number: 20130327614
    Abstract: Conveyors are disclosed herein. An embodiment of a conveyor includes a belt having at least one cam follower connected thereto. The conveyor also has a drum having a first end and a second end. An exterior surface extends between the first end and the second end. At least one cam is located in the exterior surface, the cam spirals between the first end and the second end. The cam follower is receivable in the cam.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Inventor: Darrell Keith Knigge
  • CONVEYOR
    Publication number: 20130327617
    Abstract: Conveyors are disclosed herein. An embodiment of a conveyor includes a bed having a first end and a second end, wherein a belt is slidable on the bed. The belt is in a first portion of its travel when it is located adjacent the bed and the belt is in a second portion of its travel when it is located opposite the bed. A curve is located on the first end of the bed, wherein the belt contacts at least a portion of the curve as the belt transitions between the first portion of travel and the second portion of travel.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Inventors: Darrell Keith Knigge, Thomas Quintin Harding