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:
Mar. 19, 2013
Filed:
Feb. 10, 2009
Applicant:
Carl-olof Olsson, Västerås, SE;
Inventor:
Carl-Olof Olsson, Västerås, SE;
Assignee:
ABB Research Ltd., Zürich, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 47/02 (2006.01); H01B 3/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for providing an insulated electric high voltage DC cable or a high voltage DC termination or joint. A polymer based insulation system including a compounded polymer composition is provided. The polymer based insulation system is subsequently exposed to a heat treatment procedure while the outer surface of the polymer based insulation system is covered by a cover impermeable to a substance present in the polymer based insulation system in a non-homogenous distribution, thereby equalizing the concentration of the substance in the polymer based insulation system.