Patents by Inventor Harold Ronald Evans

Harold Ronald Evans 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).

  • Fluid type exercising equipment
    Patent number: 3984102
    Abstract: Exercising equipment having a base, a water receivable tube upstanding from the base and a body incorporating a valve member, the body is suspended in water in the tube and is pulled upwardly by a person exercising, the valve member acts to apply a restraining force against upward movement of the body but permits downward movement of the body by a gravitational force on the body.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: October 5, 1976
    Inventor: Harold Ronald Evans