Patents by Inventor Mark J. Berg

Mark J. Berg 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).

  • Device for arm wrestling
    Patent number: 4162068
    Abstract: A device for arm wrestling including a base having a pair of elbow pads adjustably mounted on the top of the base. The base has a wing pivotally mounted on each side of the base. A source of electrical power and a bell connected thereto. A switch is carried by the base adjacent each wing member and connected to the bell. Each wing has a flange for actuating the switch to ring the bell when the wing is pivoted to a predetermined position.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: July 24, 1979
    Inventor: Mark J. Berg