Patents by Inventor George Joseph Frank

George Joseph Frank 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).

  • Single valve hydraulic operator for convertible top with movable rear bow
    Patent number: 6726269
    Abstract: A convertible top operating mechanism includes a bi-directional hydraulic pump which is selectively connected to top-operating hydraulic cylinders and tonneau-operating hydraulic cylinders by a two-way, 5-condition control valve to selectively raise and lower the top and tonneau. A mechanical linkage connects the top-operating cylinders with a movable rear bow and is co-operable with a spring during operation of the top-operating cylinders when fully extending and initially retracting to move the rear bow to enable tonneau operation and to seal the top on the tonneau.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: April 27, 2004
    Assignee: Dura Convertible Systems, Inc.
    Inventor: George Joseph Frank
  • SINGLE VALVE HYDRAULIC OPERATOR FOR CONVERTIBLE TOP WITH MOVABLE REAR BOW
    Publication number: 20040066058
    Abstract: A convertible top operating mechanism includes a bi-directional hydraulic pump which is selectively connected to top-operating hydraulic cylinders and tonneau-operating hydraulic cylinders by a two-way, 5-condition control valve to selectively raise and lower the top and tonneau. A mechanical linkage connects the top-operating cylinders with a movable rear bow and is co-operable with a spring during operation of the top-operating cylinders when fully extending and initially retracting to move the rear bow to enable tonneau operation and to seal the top on the tonneau.
    Type: Application
    Filed: October 8, 2002
    Publication date: April 8, 2004
    Inventor: George Joseph Frank