Patents by Inventor John Siewert

John Siewert 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: 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