Patents Assigned to Line Walker, LLC
  • Patent number: 8522412
    Abstract: An extraction tool lifting apparatus having a load bearing coupling capable of being removably connected to an extraction tool; an hydraulic cylinder assembly being operatively connected at a first end to the load bearing coupling; a mounting bracket being operatively connected to the second end of the hydraulic cylinder assembly; three legs, each operatively connected at a first end to the mounting bracket; the load bearing coupling being adapted to be removably connected to an extraction tool having, an elongated base member having first and second ends, and a drill bit being removably attachable to a socket in the first end, the base member having a threaded portion being disposed approximate the first end, the second end being adapted to be removably connected to the load bearing coupling.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 3, 2013
    Assignee: Line Walker, LLC
    Inventor: William A. Walker
  • Publication number: 20100156123
    Abstract: An extraction tool having an elongated base member having first and second ends, and a drill bit being removably attachable to a socket in the first end; the base member having a first threaded portion being disposed approximate the first end; the second end being adapted to be removably connected to a load bearing coupling.
    Type: Application
    Filed: February 13, 2010
    Publication date: June 24, 2010
    Applicant: LINE WALKER, LLC
    Inventor: William Arliss Walker
  • Patent number: 7686359
    Abstract: An improved extraction tool comprises base member 53, squared head portion 57, adapter socket 66, cylindrical middle portion 60, threaded portion 56, conical transition bit mounting foot 69, drill bit 58, drill bit socket 61 and a plurality of drill bit fasteners 64.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 30, 2010
    Assignee: Line Walker, LLC
    Inventor: William Arliss Walker