Patents by Inventor Fernando P. Rufa

Fernando P. Rufa 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: 5842958
    Abstract: Arm wrestling apparatus employing two opposed hydraulic dampers to provide resistance. The apparatus has a base and a lever pivotally mounted to the base. Hydraulic circuitry of the dampers may be controlled to vary resistance, and is employed to operate a gauge indicating force of effort. In an alternative embodiment of the invention, two novel arm wrestling devices are employed remotely from one another. Each device is provided with a video display. Radio, telephone or other links connect the displays of the two arm wrestling devices so that observers at either location may monitor a competition between two persons, one at each location.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: December 1, 1998
    Inventor: Fernando P. Rufa