Patents Assigned to Bradken Canada Ltd
  • Tooth for roller crusher
    Patent number: 9441421
    Abstract: An improved tooth for a roller crusher is presented. The tooth can include a first tungsten carbide overlay layer plasma-transfer arc welded on a recessed hemispherical end of the tooth, which is covered by a wearable cap placed over the first overlay layer, the cap welded to the tooth. A second tungsten carbide overlay layer can then be plasma-transfer arc welded over the cap to, thereby, provide a tooth having two tungsten carbide overlay wear layers.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: September 13, 2016
    Assignee: Bradken Canada Ltd.
    Inventors: Jonathan Daniel Curlett, Nolan Brian Serink
  • TOOTH FOR ROLLER CRUSHER
    Publication number: 20140196957
    Abstract: An improved tooth for a roller crusher is presented. The tooth can include a first tungsten carbide overlay layer plasma-transfer arc welded on a recessed hemispherical end of the tooth, which is covered by a wearable cap placed over the first overlay layer, the cap welded to the tooth. A second tungsten carbide overlay layer can then be plasma-transfer arc welded over the cap to, thereby, provide a tooth having two tungsten carbide overlay wear layers.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 17, 2014
    Applicant: Bradken Canada Ltd.
    Inventors: Jonathan Daniel Curlett, Nolan Brian Serink
  • Method and apparatus for circumferential interior treatment of pipe elbows
    Patent number: 7997955
    Abstract: A method for the circumferential interior treatment of pipe elbows, including a step of positioning a working member within a pipe elbow and moving the working member along a portion of a length of the pipe elbow between selected working positions, while concurrently manipulating the pitch and rotational positioning of the pipe elbow to maintain a concentric rotation of the pipe elbow about the working member.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: August 16, 2011
    Assignee: Bradken Canada Ltd
    Inventor: Fred Harmat