Patents by Inventor Thomas M. Muller

Thomas M. 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).

  • Barrel for rock breaking tool and method of use
    Patent number: 4900092
    Abstract: A rock breaking method includes drilling a hole in rock, filling the hole with water, inserting a short barrel of a rock breaking tool into the hole entrance, covering the tool with a recoil restraining mat, and discharging a cartridge down the barrel.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: February 13, 1990
    Assignee: Boutade Worldwide Investments NV
    Inventors: Hermanus Q. Van Der Westhuizen, Thomas M. Muller
  • Mat for use with rock breaking tool
    Patent number: 4829900
    Abstract: The invention relates to a rock breaking tool having a barrel insertable into a pre-drilled, water-filled hole of the rock. The rock breaking tool utilizes a firing chamber to discharge a cartridge into the barrel. A blast absorbing mat is located over the tool to retain the tool in position in the hole during discharge. The invention also relates to the method of using the rock breaking tool.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: May 16, 1989
    Assignee: Boutade Worldwide Investments NV
    Inventors: Hermanus Q. Van der Westhuizen, Thomas M. Muller