Patents by Inventor Colin Oliver Muller

Colin Oliver Muller 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: 6446478
    Abstract: A two-stage hemming machine has a centrally located press station with an anvil extendable along a vertical axis, and a loading station and an unloading station located on opposite sides of the press station. Separate first and second dies slide on horizontal tracks mounted above the press, the first die movable therealong between the loading station and the press station, and the second die movable between the unloading station and the press station. The dies shuttle back and forth, in unison, between the press station during a production cycle wherein a component to be hemmed is loaded into the first die in the loading station, is carried into the press station along with the first die where the first stage of the hemming operation occurs, and remains on the anvil as the anvil is lowered. The first die then returns to the loading station as the second die moves into the press station.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: September 10, 2002
    Assignee: Progressive Tool & Industries Co.
    Inventor: Colin Oliver Muller