Patents by Inventor Istvan Potyondy

Istvan Potyondy 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: 4036489
    Abstract: A swing for use by individuals for exercise or amusement in which theuser can operate the swing independently or in which the user can be assisted by another individual to gain momentum to maneuver the swing through a complete 360.degree. circular arc. The 360.degree. swing is entirely mechanical, requiring no electrical parts, consisting of a series of vertical supports which can either be secured on their bottom ends into the ground or with round plates for support on top of the ground, a top cross bar which is securely affixed to the top of the vertical supports conjoined thereto by means of self aligning block bearings on each end, side arms securely affixed to each end of the cross bar to provide a crank mechanism for assistance in gaining momentum by other individuals, and a seat equipped with safety straps and supported by swinging bars securely attached to said cross bar, with the cross bar and swing mechanism being fully rotatable through a 360.degree. arc.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: July 19, 1977
    Inventor: Istvan Potyondy