Patents by Inventor Kenneth Joseph Broadbent

Kenneth Joseph Broadbent 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).

  • Rock bolting equipment
    Patent number: 4024923
    Abstract: Equipment for drilling holes in mine roofs for the purpose of rock bolting comprises an intermediate portion having mounted on and extending from it at one end a telescopic leg and mounted on and extending from it at the other end a drill rod, a hydraulic motor mounted on the intermediate portion and coupled to the drill rod, first valve means adapted to be connected to a pressure fluid source for supplying pressure fluid to the leg for extending it or for releasing fluid from the leg, second valve means adapted to be connected to a pressure source for supplying pressure fluid to the hydraulic motor for driving it or for releasing fluid from the motor and means for controlling the first and second valve means.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: May 24, 1977
    Inventor: Kenneth Joseph Broadbent
  • Rock bolting equipment
    Patent number: 4010806
    Abstract: Equipment for drilling holes in mine roofs for the purpose of rock bolting comprises an intermediate portion having mounted on and extending from it at one end a telescopic leg and mounted on and extending from it at the other end a drill rod, a hydraulic motor mounted on the intermediate portion and coupled to the drill rod, first valve means adapted to be connected to a pressure fluid source for supplying pressure fluid to the leg for extending it or for releasing fluid from the leg, second valve means adapted to be connected to a pressure source for supplying pressure fluid to the hydraulic motor for driving it or for releasing fluid from the motor and means for controlling the first and second valve means.
    Type: Grant
    Filed: November 16, 1972
    Date of Patent: March 8, 1977
    Assignee: The Titan Manufacturing Company Proprietary Limited
    Inventor: Kenneth Joseph Broadbent