Patents by Inventor David C. Lindemann

David C. Lindemann 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: 7182032
    Abstract: A new and improved clamp tool device and method of using the device is disclosed for use in holding a boat in a relatively stationary position while the boat is floating in shallow water. The clamp tool device comprises: a first C-clamp having a top edge; and a second C-clamp orthogonally attached to the first C-clamp, wherein the back edge of the second C-clamp is attached to the top edge of the first C-clamp. The method of using the clamp tool device comprises the steps of getting, obtaining, positioning, ramming, securing, and tightening.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: February 27, 2007
    Inventor: David C. Lindemann
  • Patent number: 5462794
    Abstract: Disclosed is a multi-layer sheet in a which a foamed thermpolastic core layer is extrusion coated with a multi-resin reclaim-containing layer, and an EVOH or acrylonitrile barrier layer is laminated to the multi-resin layer. The multi-resin layer is formulated to contain at least about 5 weight percent, and preferably about 8 to about 16 weight percent, based on the weight of the layer, of an adhesive resin to reduce the tendency of the barrier layer to delaminate from the multi-resin layer over time. The preferred adhesive is EMA.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: October 31, 1995
    Assignee: Amoco Corporation
    Inventors: David C. Lindemann, Weilong L. Chiang, Melvin L. Luetkens, Jr., Robert D. Pischke, John C. Schubert