Patents by Inventor Jurgen R. Kaschper

Jurgen R. Kaschper 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: 4955839
    Abstract: A resin and transfer molding technique is used to fabricate, in a unitary fashion, a synthetic oar that has as a core, polyurethane and a longitudinal rigid rectangular spline preferably sitka spruce which transverses orthogonally and extends along the longitudinal axis of the shaft of the oar, the shaft handle therefore and opposite paddle end being unitarily molded according to the resin transfer molding technique. Prior to such molding a green oar substructure is made of the shaft and handle on the one hand, and the paddle on the other hand where a multi-layer wrap of synthetic material is formed over the spline in relation to the shaft and in the paddle mold in relation to the paddle and the cavities are cores thereof filled with green polyurethane. The two components so formed, being the green paddle, and the green shaft, are merged together and further wraps of synthetic material overlaid.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: September 11, 1990
    Assignee: Big Creek Sports Ltd.
    Inventor: Jurgen R. Kaschper