Patents by Inventor Christopher D. Esterson

Christopher D. Esterson 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: 5934448
    Abstract: A wire conveyor belt includes a plurality of spaced, tractive rods disposed in succession and transversely with respect to a direction of travel of the belt, each rod having two ends. A plurality of rows of wickets are transversely disposed with respect to the direction of travel, and interconnect the succession of rods, each row of wickets including a plurality of links, each link connecting a rod with a following rod in the succession. The belt has a transport course including at least one course turn deviating in a direction selected from the group consisting of a left course turn and a right course turn. The belt in the course turn has an outside edge and an inside edge, and the belt has a straight transport course downstream of the course turn. The belt in the straight transport course has an outside edge corresponding to the outside edge of the belt in the course turn, and the belt in the straight transport course has an inside edge corresponding to the inside edge of the belt in the course turn.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: August 10, 1999
    Assignee: Cambridge, Inc.
    Inventors: John Kucharski, Christopher D. Esterson
  • Patent number: 5176249
    Abstract: Wire stock for connecting rods is run through the nip of a pair of obliquely toothed rolls having teeth which taper from one face of the roll towards the other, and have a larger radius at the tip than along the portions flanking the tip. The angle of obliqueness matches the angle that a turn of a spiral wire will traverse the connecting rod. Round wire stock for the single-faceted spiral wires is run through the nip of a pair of rolls one of which has a cylindrical surface (i.e., a flat longitudinal profile), and the other of which has a circumferential groove with a slightly larger diameter than the round wire stock. As the wire is flattened on one side, its curved side is broadened. As the resultingly single-faceted round wire is wound into flattened spiral form, it is spatially orientationally guided, so that the facet becomes located facing outwards.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: January 5, 1993
    Assignee: The Cambridge Wire Cloth Company
    Inventors: Christopher D. Esterson, Conroy R. Marth, Peter K. Bailey, John D. Carduff