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:
Dec. 02, 2014
Filed:
Dec. 22, 2008
Applicants:
Jaime Ramirez Toledo, Santiago, CL;
Ricardo Abarca Melo, Santiago, CL;
Wilfredo San Martin Cisterna, Santiago, CL;
Inventors:
Jaime Ramirez Toledo, Santiago, CL;
Ricardo Abarca Melo, Santiago, CL;
Wilfredo San Martin Cisterna, Santiago, CL;
Assignee:
Weir Vulco, S.A., , CL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 33/76 (2006.01); B29C 33/40 (2006.01); B29C 33/38 (2006.01); B29L 31/24 (2006.01);
U.S. Cl.
CPC ...
B29C 33/3842 (2013.01); B29C 33/40 (2013.01); B29L 2031/243 (2013.01);
Abstract
A method of manufacturing a mandrel for use in the internal coating of a pipe elbow or bend comprises the steps of: (i) adjustably positioning a bendable elongate member in a hollow template for the pipe elbow or bend, whereby the elongate member is bent so as to extend generally centrally through the template; and (ii) introducing a flexible material into, and allowing the material to cure in a space between the elongate member and an internal surface of the template.