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:
Nov. 15, 2011
Filed:
May. 01, 2007
Paul Nicholas Myers, West Yorkshire, GB;
Steven Garfield Farrar, West Yorkshire, GB;
Gordon Leslie Lilley, West Yorkshire, GB;
Paul Nicholas Myers, West Yorkshire, GB;
Steven Garfield Farrar, West Yorkshire, GB;
Gordon Leslie Lilley, West Yorkshire, GB;
Caldervale Technology Limited, Dewsbury, West Yorkshire, GB;
Abstract
A device for the preparation of pipe ends, prior to jointing them together using an inserted close-fitting spool and an external close-fitting sleeve, consists of a plain cylindrical mandrel () adapted to be firmly fixed centrally inboard of an end zone of the bore of a pipe () so as to project from the end of the pipe, a hydraulic cylinder () adapted to be removeably mounted co-axially on the projecting end of the mandrel, and a piston () in the cylinder slideable along the mandrel and adapted to carry an interchangeable annular tool, whereby the tool can be force fed axially along the mandrel into the pipe to modify the bore thereof.