Patents by Inventor Kikue Matsuda

Kikue Matsuda 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).

  • Process and equipment for the simultaneous recovery of two pipes or tubes with a high degree of obstruction
    Patent number: 5783256
    Abstract: Patent for "PROCESS AND EQUIPMENT FOR THE SIMULTANEOUS RECOVERY OF TWO PIPES OR TUBES WITH A HIGH DEGREE OF OBSTRUCTION", with the said process consisting of recovering each of the said obstructed pipes or tubes by means of a jet of compressed air flowing with a spiral motion from one of the extremities of each of the said pipes or tubes, with water first being added to the said jet in order to increase the passage of the air; with the said water then being followed by a cleaning solution, a volatile liquid, or another equivalent product, along with an abrasive material consisting of crushed rock or gravel, or a similar substance, in order to clean the said pipe or tube; after which an epoxy resin paint or another type of coating is added, which coats all of the inner wall of the pipe or tube, as a result of the pressure applied by the said jet of compressed air.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: July 21, 1998
    Inventors: Shinichi Matsuda, Kikue Matsuda