Patents by Inventor Robert M. Kotch

Robert M. Kotch 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: 3999744
    Abstract: Disclosed herein is an improved apparatus for removing fallen slag from beneath a flame cutting table. A three-sided scoop is positioned below the table. Co-acting guide members are mounted along the sides of the scoop and the table. Chains are fastened to each side of the scoop and extend around vertically positioned sprockets at opposite ends of the table. The chain is located below a portion of the table guide member for protection from falling slag and heat. A motor engages the sprockets to drag the scoop from one end of the table to the other. A tube fastened to the table is positioned for carrying the returning chain.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: December 28, 1976
    Assignee: Gachman Steel Company
    Inventor: Robert M. Kotch