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:
Jul. 01, 1997
Filed:
Oct. 24, 1994
Applicant:
Inventor:
Robert O Parish, II, Cleveland, TX (US);
Assignee:
TTI Trenchless Technologies, Inc., Conroe, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; B66C / ;
U.S. Cl.
CPC ...
294 8612 ; 294 8625 ;
Abstract
The present invention is directed to an attachment for a plastic pipe, usually polyethylene pipe, to a head for pulling the pipe into a sewer or other utility line. The present invention is also directed to a slip lining head. More specifically, the present invention is directed to a slip lining head which includes the unique attachment for a plastic pipe used in the repair/replacement of sewer and other utility lines.