Patents by Inventor George J. Rankin

George J. Rankin 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: 5626508
    Abstract: A focusing nozzle for producing and jetting a precisely focused, sustained cohesive jet of a mixture of a fluid and abrasive material, having a long coherence length and a prolonged centerline pressure for obtaining clean, precise, sharp-edged kerfs, cuts and grooves in hard substances.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: May 6, 1997
    Assignee: Aqua-Dyne, Inc.
    Inventors: George J. Rankin, Samuel Wu
  • Patent number: 5323797
    Abstract: A rotating hose device for rotating and helically thrusting a high pressure hose and biased nozzle into a pipe for the purpose of cleaning the interior surface of the pipe. The rotating hose device is powered by converting linear torque from a rotating high pressure hose into linear thrust, forcing the high pressure hose and biased nozzle into the pipe, where the high pressure hose and biased nozzle travel through the pipe in a helical manner. The present invention more effeciently cleans conduit, pipe and other tubular members, by constantly positioning the biased nozzle against the interior surface of the pipe and avoiding the "streaking" effect left by prior art nozzles. The helical pitch of the rotating high pressure hose, speed and direction of travel of the high pressure hose are controlled through the alignment of the drive wheels in the rotary hose drive.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 28, 1994
    Inventor: George J. Rankin
  • Patent number: 5322080
    Abstract: A retractable rotating hose device for rotating and helically thrusting a high pressure hose and biased nozzle into a pipe for the purpose of cleaning the interior surface of the pipe. The retractable rotating hose device is powered by converting linear torque from a rotating high pressure hose into linear thrust, forcing the high pressure hose and biased nozzle into the pipe, where the high pressure hose and biased nozzle travel through the pipe in a helical manner. The retractable rotating hose device remains generally stationary during the pipe cleaning operation and includes a spring-operated spool which automatically rewinds the high pressure hose at the termination of pipe cleaning operations. The present invention more effeciently cleans conduit, pipe and other tubular members, by constantly positioning the biased nozzle against the interior surface of the pipe and avoiding the "streaking" effect left by prior art nozzles.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: June 21, 1994
    Inventor: George J. Rankin
  • Patent number: 5248095
    Abstract: A rotating nozzle for a high pressure water blasting system comprising a rotating body mounted on a fixed shaft having a high pressure water passage therein and adapted to discharge a stream of high velocity water through a nozzle opening in said body that is inclined relative to the longitudinal axis of the rotating body to direct the discharge from the nozzle in a circular path when the body is rotated.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: September 28, 1993
    Assignee: Aqua-Dyne Incorporated
    Inventors: George J. Rankin, William A. Lees
  • Patent number: 5248092
    Abstract: A pulsating nozzle which includes a rotating head driven by reaction forces of high pressure water passing through outlets disposed at an angle to a plane normal to the axis about which the head rotates and through a plurality of spaced passages extending partially circumferentially with respect to such axis.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: September 28, 1993
    Inventor: George J. Rankin
  • Patent number: 5199642
    Abstract: A high pressure fluid spray gun comprising an adjustable shoulder support with a rotatable head and a length adjustment mechanism. The high pressure gun also includes a reversible piston and seat operable by a manual trigger for directing the flow of high pressure fluid to discharge either through the gun barrel or to a dump chamber which is mounted on a swivel for convenient adjustment of the alignment of the dump hose. The high pressure inlet hose is connected to a "Y" fitting in the barrel to reduce the back thrust on the operator when the gun is being operated.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: April 6, 1993
    Inventor: George J. Rankin
  • Patent number: 5170946
    Abstract: A nozzle having a shaped bore formed with a plurality of highly polished and substantially flat surfaces joined together to form a non-circular bore with a non-circular opening for producing a non-circular, high velocity adhesive jet stream.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: December 15, 1992
    Inventor: George J. Rankin
  • Patent number: 5054249
    Abstract: A liquid-abrasive cleaning method and apparatus in which abrasive particles are accelerated into a high pressure liquid stream and transmitted by the liquid onto a surface for removing paint, rust or other substances coating the surface. The invention includes a flow regulator for regulating the flow of particles as they are drawn into the nozzle by the high pressure liquid stream.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: October 8, 1991
    Inventor: George J. Rankin