Patents by Inventor Mark W. Hazelton

Mark W. Hazelton 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: 5011068
    Abstract: An automotive body framing system includes a clamping frame assembly for accurately positioning and clamping loosely assembled main body panels and header members in accurate alignment with each other to be welded into a rigid permanently assembled relationship. The loosely assembly panels and members are mounted upon a conveying sled upon which the floor panel of the assembly is accurately located. A clamping frame assembly including front and rear frame sections pivotally connected in end-to-end relationship with each other is movable into a clamping position overlying the body from front to rear and supported in an inverted V configuration by support posts which support the front and rear ends of the frame assembly. Clamps mounted on the front and rear frame sections are actuable to clamp the various components in accurately assembled relationship to each other while leaving the entire opposite sides of the body accessible to welding devices.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: April 30, 1991
    Assignee: Progressive Tool & Industries Co.
    Inventors: Robert R. Stoutenburg, Michael R. Dugas, Mark W. Hazelton
  • Patent number: 4991707
    Abstract: A carrier is mounted for movement along a conveying path defined by a pair of conveying rails, one of which has a relatively short gap at a work station. A manipulator device is located at the work station and includes a relatively short conveying rail section which may selectively located to span the gap in the one rail or located in a position displaced from the rail. An article support frame is mounted upon the carrier for pivotal movement about an axis parallel to the rails between conveying position and a transfer position. A rail gripping device fixed to the support frame slides along the one rail to support the support frame in its conveying position during movement of the carrier along the rails.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: February 12, 1991
    Assignee: Progressive Tool & Industries Co.
    Inventors: Robert O. Alexander, Michael R. Dugas, Mark W. Hazelton, Patrick J. Kenny