Patents by Inventor Van Der Pols Erik Bernard

Van Der Pols Erik Bernard 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).

  • Stringing device of a racket stringing machine
    Patent number: 7980968
    Abstract: A stringing device of a racket stringing machine includes a shell whose internal surrounding surface is defined with a track extending along a straight line; a sliding base accommodated in the track of the shell, with wheels on its opposite sides to roll on the surrounding surface of the track; a stringing head fixed on the sliding base by its bottom end; a transmission mechanism connected to the sliding base to drive the sliding base to slide along the track, concurrently driving the stringing head on the sliding base to move along a straight line.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: July 19, 2011
    Assignee: Elding Ind. Co., Ltd.
    Inventor: Van Der Pols Erik Bernard