Patents by Inventor Rollo Shoesmith, Jr.

Rollo Shoesmith, Jr. 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).

  • Bridge and die attachment for cutting torches
    Patent number: 4319933
    Abstract: An accessory for facilitating the accurate cutting of holes with a cutting torch. A die is attached to the workpiece by legs and presents a die opening which controls the size and shape of the hole. A bridge piece fits against the die and maintains the cutting torch tip perpendicular to the surface of the workpiece as the torch is guided around the edge of the die opening to form the hole.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: March 16, 1982
    Inventor: Rollo Shoesmith, Jr.