Patents Assigned to Boutade Worldwide Investments NV
  • 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
  • Inhaler device
    Patent number: 4676237
    Abstract: An inhaler device which includes a wick which draws water from a reservoir and which is in contact with a heated plate. Air is directed over the heated wick surface by means of a fan thereby to produce a stream of heated humid air. A sensor monitors the temperature of the heated air stream and a control circuit which is responsive to the sensor maintains this temperature substantially constant at a predetermined value. The heated humid air stream is available for inhalation by a patient for the treatment of certain ailments.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: June 30, 1987
    Assignee: Boutade Worldwide Investments NV
    Inventors: John D. Wood, Julian M. Coles, William R. S. Baxter