Apparatus and method for the longitudinal splitting of pipes laid underground
OwnerFranz-Josef Puttmanninventor
Life of this patent
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Abstract
An apparatus for longitudinal splitting, in particular longitudinal slitting, of pipes laid underground and for the simultaneous trenchless pulling-in of a new pipeline comprises a carriage in the form of a frame, in which a cutting wheel for cutting open the pipe wall and a support roller, which serves as an abutment and is supported on the pipe wall, are arranged above one another. The carriage or frame has a base which engages in a form-fitting manner in a frame-like window of a pull and/or push linkage.
Claims24
An apparatus for the longitudinal splitting of pipes laid underground, comprising a carriage in which at least one rotatably cutting wheel and at least one support roller are arranged above one another, and a pull and/or push linkage which is connected in a form-fitting manner to the carriage
A method for the longitudinal splitting of a pipeline which is laid underground and for pulling in a new pipe, wherein, starting from a start shaft, a linkage is pushed through the pipeline until it reaches a target shaft, where the linkage is provided with a cutting appliance and, together with a following expander member and a follower pipe, is moved back to the target shaft.
Dependencies are inferred from the claim text.