Patents by Inventor James Murdock

James Murdock 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).

  • Continuous swimming apparatus
    Patent number: 5044021
    Abstract: A continuous swimming apparatus is provided which minimizes power requirements by providing higher water velocity through that portion of the swimming area in which the swimmer is located, and lower velocity in unused portions of the tank. This water velocity gradient is produced by an arrangement of turning vanes in the recirculation paths of the apparatus. The water velocity may be varied by adjusting hydraulic fluid flow to hydraulic motors which drive propellers for circulating the water through the apparatus.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: September 3, 1991
    Assignee: Endless Pools, Inc.
    Inventor: James Murdock