Patents Assigned to CRC-Evans Canada Ltd.
  • Publication number: 20120186732
    Abstract: Pipe coating apparatus including a concrete applicator station, a pipe conveyor adapted to longitudinally advance and axially rotate a section of pipe alongside the concrete applicator station, and an overhead container adapted to receive and dispense a supply of mixed concrete to the concrete applicator station.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 26, 2012
    Applicant: CRC-EVANS CANADA LTD.
    Inventors: Ian Sprague, Charles Frederick McKay
  • Publication number: 20120003049
    Abstract: A pipeline weighting device to straddle the longitudinal axis of a pipeline adapted to be lifted by transverse lifting straps. The pipeline weighting device includes three or more interconnected, generally tubular-shaped fabric lobes arranged to straddle the pipeline in a balanced manner along its longitudinal axis. Adjacent lobes are interconnected by a longitudinal seam, and are arranged as one or more left outermost lobes, one or more right outermost lobes and one or more innermost lobes. Central transverse lifting straps extend around the innermost lobe(s). Left transverse lifting straps form a loop around the left outermost lobe(s). Right transverse lifting straps form a loop around the right outermost lobe(s). Left transverse lifting straps interconnect to the central transverse lifting strap, and right transverse lifting straps interconnect to the central transverse lifting strap.
    Type: Application
    Filed: December 23, 2010
    Publication date: January 5, 2012
    Applicant: CRC-EVANS CANADA LTD.
    Inventors: Ian Sprague, Charles Frederick McKay
  • Patent number: 7862256
    Abstract: A pipeline weighting device to straddle the longitudinal axis of a pipeline, a method of filling the device, and a method of weighting a pipeline with the device. The pipeline weighting device is formed of a plurality of interconnected, generally tubular-shaped lobes arranged to straddle the pipeline in a balanced manner along the longitudinal axis of the pipeline. The lobes are formed of a flexible, water permeable fabric to hold weighting fill material. Each lobe has opposed and closed longitudinal side edges and opposed ends, one end being a closed end, and the other end forming an open or partially open filling end.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: January 4, 2011
    Assignee: CRC-Evans Canada Ltd.
    Inventors: Ian Sprague, Charles Frederick McKay
  • Publication number: 20090047073
    Abstract: A pipeline weighting device to straddle the longitudinal axis of a pipeline, a method of filling the device, and a method of weighting a pipeline with the device. The pipeline weighting device is formed of a plurality of interconnected, generally tubular-shaped lobes arranged to straddle the pipeline in a balanced manner along the longitudinal axis of the pipeline. The lobes are formed of a flexible, water permeable fabric to hold weighting fill material. Each lobe has opposed and closed longitudinal side edges and opposed ends, one end being a closed end, and the other end forming an open or partially open filling end.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 19, 2009
    Applicant: CRC-EVANS CANADA LTD.
    Inventors: Ian SPRAGUE, Charles Frederick MCKAY
  • Patent number: 5171110
    Abstract: An apparatus (10,100) for counterboring a pipe is attached to a pipe end surfacing machine (12) and is comprised of a frame (14) pivotally mounted to a flywheel (16). A cutting tool (50) and guide wheel (72) are attached to said frame (14). Means (91) for positioning the frame so as to locate the guide wheel (72) and cutting tool (50) relative to the pipe for machining is connected between said flywheel and said frame. In operation, the apparatus (10,100) is inserted into said pipe and the cutting tool (50) is positioned to contact the inner surface of the pipe adjacent the end of said pipe. The flywheel is activated and rotates, thereby rotating the cutting tool (50).
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: December 15, 1992
    Assignee: CRC-Evans Canada Ltd.
    Inventors: Donald A. Pettifer, William B. Pettifer