The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2002
Filed:
Apr. 02, 2001
Applicant:
Inventor:
Franz-Josef Püttmann, Lennestadt, DE;
Assignee:
Tracto-Technik Paul Schmidt Spezialmaschinen, Lennestadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 5/518 ; B23K 3/702 ;
U.S. Cl.
CPC ...
F16L 5/518 ; B23K 3/702 ;
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.