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:
Apr. 24, 2018
Filed:
Feb. 23, 2012
Applicants:
Ralf Winterstein, Meiningen, DE;
Stephan Muller, Hofheim i. Ufr, DE;
Inventors:
Ralf Winterstein, Meiningen, DE;
Stephan Muller, Hofheim i. Ufr, DE;
Assignee:
Uponor Innovation AB, Virsbo, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 9/147 (2006.01); B29C 47/00 (2006.01);
U.S. Cl.
CPC ...
F16L 9/147 (2013.01); B29C 47/0023 (2013.01);
Abstract
The invention relates to an apparatus for making a multilayer composite pipe. The multilayer composite pipe comprises an innermost layer () made of plastic. The pipe has a seamless metal layer () or a metal layer () having an axial, non-overlapping seam. The outer surface of the metal layer is treated for changing its outer appearance. There-after a transparent outermost layer () is provided on the outer surface of the metal layer. The structure of the pipe is such that the pipe can be permanently bent to certain angles without significant spring back.