Patents by Inventor Timothy D. Koehl

Timothy D. Koehl 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: 7877830
    Abstract: A method and apparatus for more accurately fastening a raised heel to a shoe outsole includes a shoe support column having an impact head at an upper end thereof. The impact head is contoured to substantially conform to the inner heel portion of the shoe upper. The impact head includes a plurality of bores each having a piston-operated driver therein that propels a nail upwardly through the shoe insole and into the raised heel. Proximal the bore outlets is an alignment button that is inserted into a channel formed through the shoe insole and outsole. An alignment pin is positioned within both an alignment aperture formed on the shoe heel and a centrally disposed cavity on the button. When the alignment aperture, button and channel are axially aligned, the raised heel is properly positioned on the shoe outsole ensuring accurate penetration of the nails.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: February 1, 2011
    Inventors: Timothy D. Koehl, Joseph R. Mackenroth, III