Patents by Inventor Francis M. Tuttle

Francis M. Tuttle 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: 4660404
    Abstract: Apparatus for manipulating the upper and lower dies of a die set comprising first and second fixtures mounted in laterally spaced relation for movement toward and away from each other. The first fixture has a mechanism providing a die-supporting surface and is in the form of a cradle rockable between a loading position in which its die-supporting surface is generally horizontal and a transfer position in which its die-supporting surface is generally upright and faces the second fixture. The second fixture has a die-supporting surface and also is in the form of a cradle rockable between a transfer position in which its die-supporting surface is generally upright and faces the first fixture and a position in which its die-supporting surface is generally horizontal. Clamps are provided to clamp the lower die of a die set to the die-supporting surface of the first fixture and for clamping the upper die to the die-supporting surface of the second fixture.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: April 28, 1987
    Assignee: MWA Company
    Inventors: Clyde J. Rugh, John L. King, Jr., Francis M. Tuttle, William E. Jones
  • Patent number: 4660406
    Abstract: An apparatus for manipulating the upper and lower dies of a die set comprising a gantry having a fixture mounted on a main frame for up and down movement, and a sub-frame mounted on the fixture for 180.degree. of rotation. Clamping units are mounted on the sub-frame for clamping the upper die to the sub-frame when the fixture is in a lower position at a work-transfer station. The die set is transported on a cart to the work-transfer station where the upper die is clamped to the sub-frame. The fixture is raised to elevate the upper die to an upper position. The cart is moved away from the work-transfer station carrying only the lower die with it. The upper die is inverted, lowered onto a second cart and it, too, is then moved away from the work-transfer station. Both dies now face upwardly for convenient inspection, cleaning and/or repair. The transporter cart table on which the die set is supported can be rotated to any desired angle such as 90.degree.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: April 28, 1987
    Assignee: MWA Company
    Inventors: Clyde J. Rugh, John L. King, Jr., Francis M. Tuttle, William E. Jones