Patents by Inventor Kevin R. Klein

Kevin R. Klein 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).

  • Retractable swim fin
    Patent number: 5108327
    Abstract: Improved swimming efficiency and safety in a water environment is achieved with the use of retractable swim fins having a web-like member rotatably interconnected to a shoe-like member. A latch includes a latch element which secures the web-like member to the shoe-like member in a downward swimming position. The latch element is released by linear pressure from the other foot to permit the web-like member to rotate in response to a spring force to an upward walking position. A natural swimming kick returns and latches the web-like member to the swimming position.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: April 28, 1992
    Inventor: Kevin R. Klein
  • Retractable swim fin
    Patent number: 4981454
    Abstract: Improved swimming efficiency and safety in a water environment is achieved with the use of retractable swim fins having a web-like member rotatably interconnected to a shoe-like member. Latching means secure the web-like member to the shoe-like member in a downward swimming position. Releasing means permit the web-like member to rotate to an upward walking position. Pressure from a swimmer's foot returns and latches the web-like member to the downward position.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: January 1, 1991
    Inventor: Kevin R. Klein