Patents by Inventor Murray A. Rowe

Murray A. Rowe 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).

  • Patent number: 6234713
    Abstract: A vibrator assembly is described for use with a concrete paving machine moveable longitudinally along a body of poured concrete. The paving machine includes a machine frame and a finishing carriage unit moveable transversely back and forth across the body of concrete. A plurality of support members are mounted to the paving machine frame and include extension members structurally arranged to move between a collapsed position and an extended position. A vibrator truss support frame member is mounted to the extension members and a ganged vibrator carriage assembly is mounted to the vibrator truss support frame member and structurally arranged to move transversely back and forth across and through the body of concrete.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 22, 2001
    Assignee: CMI Corporation
    Inventors: Murray A. Rowe, Frederick A. Blom, Dean A. Johnson
  • Patent number: 5791815
    Abstract: A concrete finishing machine includes a surfacing unit having two finishing cylinders and two augers mounted in line with the two cylinders, a pair of compacting rollers located on either side of the augers and suspended by a frame which is attached to the surfacing unit by a mounting assembly which allows adjustment in the vertical height of the compacting rollers relative to the surfacing unit for setting the compacting rollers relative to the surface being finished. The frame is adapted to be vibrated for vibrating the compacting rollers in use. The compacting rollers each have an outer peripheral planar surface extending about the periphery of the roller and a plurality of recessed planar surfaces spaced equally about the periphery of the roller.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: August 11, 1998
    Assignee: CMI Corporation
    Inventor: Murray A. Rowe
  • Patent number: 4993869
    Abstract: A concrete finishing machine includes a surfacing unit having one or more finishing rollers supported on the surfacing unit carriage by a finishing roller vibrating assembly which includes a frame supporting the finishing rollers at one end and on which is mounted a pair of vibrator units producing vibrational forces which are applied to the finishing rollers through the frame, the vibrator units being mounted on a common beam and spaced apart laterally of one another whereby horizontal forces are cancelled and only vertical amplitude vibrational forces are applied to the finishing rollers.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: February 19, 1991
    Assignee: CMI Corporation
    Inventors: Ewald R. Ulmer, Murray A. Rowe
  • Patent number: 4775262
    Abstract: A concrete finishing machine includes a surfacing unit having two finishing cylinders with two augers mounted in line with the two cylinders, and a pair of compacting rollers located on either side of the augers, suspended by a frame which is attached to the surfacing unit by a mounting assembly which allows adjustment in the vertical height of the compacting rollers relative to the surfacing unit for setting the compacting rollers relative to the surface being finished. The frame is adapted to be vibrated for vibrating the compactor rollers in use. In one embodiment, the compacting rollers each have rectangular fins projecting radially outward from the roller and extending the length thereof. In another embodiment, the compacting rollers each have a serrated outer surface.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: October 4, 1988
    Assignee: CMI Corporation
    Inventors: Robert L. Guntharp, Murray A. Rowe
  • Patent number: 4708520
    Abstract: A concrete finishing machine includes two finishing cylinders with two augers mounted in line with the two cylinders, forward ends of the augers being suspended by a frame which is pivotally attached to the cylinder support frame and rearward ends of the augers being connected through flexible couplings to the output ends of the cylinder shafts, allowing adjustment in the angle of inclination of the auger support frame, pivoting the two augers relative to the plane of the cylinder shafts.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: November 24, 1987
    Assignee: CMI Corporation
    Inventor: Murray A. Rowe
  • Patent number: 4484834
    Abstract: A paver embodying a vibrating pan for spreading concrete and smoothing and compacting the same on a sloping surface is described.
    Type: Grant
    Filed: October 27, 1982
    Date of Patent: November 27, 1984
    Assignee: Bid-Well Corporation
    Inventors: Murray A. Rowe, Ewald R. Ulmer
  • Patent number: 4320987
    Abstract: A concrete vibrator machine movable longitudinally of a roadway, or the like, with a vibrator unit movable back and forth transversely of the roadway, with the vibrator mechanism thereof disposed in the concrete to be vibrated, and with the vibrator mechanism being raisable and lowerable relative to the concrete to be vibrated.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: March 23, 1982
    Assignee: CMI Corporation
    Inventors: Murray A. Rowe, Herbert C. Glesmann, Ewald Ulmer
  • Patent number: 4256415
    Abstract: A concrete vibrator machine wherein the vibrators thereof are mounted on individual supporting structures that are adjustable longitudinally of the main frame of the machine, and wherein the vibrators are raised and lowered on their individual supporting structures in such a manner that if the vibrators strike an obstruction during lowering thereof, lowering of the vibrators may stop without damaging stress being placed thereon.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: March 17, 1981
    Assignee: CMI Corporation
    Inventors: Murray A. Rowe, Robert T. Conway, Herbert C. Glesmann, Richard W. Kruse
  • Patent number: 4068970
    Abstract: A concrete finishing machine embodying an elongated supporting frame for extending across a roadway, or the like, and having a conveyor screw projecting from one side of the frame for advancing and spreading concrete ahead of the machine and having screed mechanism below the supporting frame for striking-off, smoothing and vibrating such spread concrete.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: January 17, 1978
    Assignee: CMI Corporation
    Inventor: Murray A. Rowe