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. 14, 2006
Filed:
Jun. 03, 2003
Applicants:
David Charles Harget, Wollaton, GB;
Jyri Jarvenkyla, Hollola, FI;
Inventors:
David Charles Harget, Wollaton, GB;
Jyri Jarvenkyla, Hollola, FI;
Assignee:
Uponor Limited, Derbyshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the manufacture of a heat fusion fitting, which comprises i) forming a body () comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element () in a second polymeric material () to form an insert (), the ferromagnetic heating element () having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (), and iii) assembling the body and the insert () to form the fitting.