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:
Feb. 02, 2016
Filed:
Aug. 11, 2011
Yngve Lundequist, Virsbo, SE;
Hakan Persson, Virsbo, SE;
Erika Sundqvist Byhlin, Virsbo, SE;
Johan Backlund, Virsbo, SE;
Yngve Lundequist, Virsbo, SE;
Hakan Persson, Virsbo, SE;
Erika Sundqvist Byhlin, Virsbo, SE;
Johan Backlund, Virsbo, SE;
UPONOR INNOVATION AB, Virsbo, SE;
Abstract
A pipe end is expanded by an expander tool () comprising a plurality of jaws (), which are radially movable in relation to a center axis between a retracted position and expanded position. The jaws () when retracted are intended to be inserted into the pipe end. The jaws () have outer jaw surfaces which are intended for engagement with the inner surface of the pipe end and which lie adjacent to one another in the retracted position of the jaws (). The tool () further comprises a piston () or a cone with a tapered end for moving the jaws () between said positions and means moving the piston () or the cone in a reciprocating manner in the axial direction for expanding the pipe end. The tool () further comprises support structures whereby the jaws () are supported in a circumferential direction in the expanded position. A method for expanding a pipe using such a tool is also disclosed.