Patent ID: 6585453
Filing Date: 2003-07-01
Classification: F16L

Abstract:
A tool for the replacement of underground pipe comprising:a) a first subsection for cutting or fracturing said underground pipe into fragments,.said first subsection having a front end and a rear end; b) a second subsection for causing outward movement of said fragments and for widening a cavity of said underground pipe, said second subsection having a front end and a rear end, said front end of said second subsection being engageable with said rear end of said first subsection; c) a third subsection for guiding replacement pipe into said cavity, said third subsection having a front end and a rear end, said front end of said third subsection being engageable with said rear end of said second subsection, said rear end of said third subsection operative to receive a first section of said replacement pipe; d) a longitudinal bore extending through each of said subsections such that when said subsections are engaged with one another said tool has a longitudinal bore extending from said front end of said first subsection to said rear end of said third subsection; e) a block engageable with the bore of said tool; f) a first line removably connectable to said block, said first line operative to pull said block forward such that said tool can be drawn through said underground pipe; and g) a second line removably connectable to said block such that said second line trails said tool, said second line operative to pull said block and said pulling line rearwardly such that said block may be retrieved from said underground pipe.