Patents by Inventor Dan P. Westra

Dan P. Westra 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: 4429889
    Abstract: A stacking cart for paper products, sheet material, or the like, is provided comprising a generally horizontally extending movable stand having four vertically oriented substantially identical, V-shaped troughs disposed thereon. The V-shaped troughs are each formed from a unitary sheet metal part with at least one wedge-shaped vertical flange. A plurality of generally horizontally extending shelves are disposed in the V-shaped troughs and fasteners extending through the vertically oriented flanges on the V-shaped troughs secure the troughs in a back-to-back relationship. Each of the troughs are inclined with respect to a centrally located vertical axis, with the tops of the troughs being disposed inwardly with respect to the bottom of the troughs so that sheets of material disposed on the horizontally extending shelves are gravity biased inwardly toward the centrally located vertical axis.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: February 7, 1984
    Assignee: The Challenge Machinery Company
    Inventor: Dan P. Westra
  • Patent number: 4146942
    Abstract: A paper padding press is disclosed comprising a support base and a tiltable rack having stacking and working positions for aligning a stack of pads and gluing and edges of the pads, respectively. The tiltable rack includes a planar stacking table having a pair of upstanding posts disposed at a right angle to the stacking table. The upstanding tubular posts support a pair of guide doors providing a surface disposed at a right angle to the stacking table for aligning the edges of the pads to be glued. The upstanding tubular posts also support a clamp bar and a pair of pipe clamps for clamping a stack of pads between the stacking table and the clamp bar. Means are provided for securely latching the doors closed for the stacking operation and open to the side of the stacking table for the gluing operation. The tiltable rack is latched in a working position and gravity secured in a stacking position by a stop rod pivoted on the underside of the stacking table.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: April 3, 1979
    Assignee: The Challenge Machinery Company
    Inventors: Dan P. Westra, John Siewert