Patents by Inventor Thomas H. Larsen

Thomas H. Larsen 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).

  • Apparatus for creating a swim-in-place current in a swimming pool
    Patent number: 5298003
    Abstract: Apparatus for creating a current in a swimming pool against which a swimmer can swim-in-place in the pool, the pool comprising a water basin having an upper rim and being filled with water up to a predetermined upper level below the rim, the apparatus comprising a propeller and a motor mechanism for driving the propeller; a mechanism connected to the propeller for positioning the propeller at selected depth below the upper level of water in the basin such that when the propeller is driven the propeller generates a current of water flowing in a selected direction between about 0.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: March 29, 1994
    Inventors: Clyde R. Weihe, Thomas H. Larsen