Patents by Inventor J. Dana Pruhs

J. Dana Pruhs 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).

  • Method and system for installation of in-ground conduit
    Patent number: 9290993
    Abstract: The present disclosure is directed toward systems and methods for trenchless installation of a conduit. According to the examples herein, a conduit may be installed underground using the conduit itself for the drilling of the bore hole needed to accommodate the conduit. The conduit may be installed after a drill string has been positioned in the ground to define a pilot hole. After the pilot hole is defined and while the drill string used to define the pilot hole remains underground, the conduit may be driven underground following the path defined by the drill string. A driving force may be applied to the conduit and cutting member attached to a leading end of the conduit to cause the conduit to advance underground while the drill string, a portion of which may be interior to the conduit, remains underground.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: March 22, 2016
    Inventors: Robert E Harr, J. Dana Pruhs
  • METHOD AND SYSTEM FOR INSTALLATION OF IN-GROUND CONDUIT
    Publication number: 20140027183
    Abstract: The present disclosure is directed toward systems and methods for trenchless installation of a conduit. According to the examples herein, a conduit may be installed underground using the conduit itself for the drilling of the bore hole needed to accommodate the conduit. The conduit may be installed after a drill string has been positioned in the ground to define a pilot hole. After the pilot hole is defined and while the drill string used to define the pilot hole remains underground, the conduit may be driven underground following the path defined by the drill string. A driving force may be applied to the conduit and cutting member attached to a leading end of the conduit to cause the conduit to advance underground while the drill string, a portion of which may be interior to the conduit, remains underground.
    Type: Application
    Filed: February 11, 2013
    Publication date: January 30, 2014
    Inventors: Robert E. Harr, J. Dana Pruhs