Patent ID: 9651167
Date: 2017-05-16
CPC Classifications: E21B,F16L

Claim:
1. A method for replacing a drainage structure located in a material, the method comprising: attaching a mounting portion of a tool to a first section of a replacement drainage structure, the mounting portion connected to a receiving portion of the tool via spaced supports; aligning a first section of a replacement drainage structure according to a line and grade of a drainage structure to be replaced, the replacement drainage structure having an interior cross-sectional dimension greater than an outer cross-sectional dimension of the drainage structure to be replaced; attaching a pneumatic hammer to the receiving portion of the tool using a collet, wherein a portion of the collet is inserted into the receiving portion such that a shoulder of the collet abuts the receiving portion; driving the first section into the material to be positioned substantially around the drainage structure to be replaced; aligning a second section of the replacement drainage structure to the first section; joining the second section to the first section; driving the second section into the material and thereby drive the first section further into the material; and removing a portion of the drainage structure to be replaced.