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:
Jan. 31, 2017
Filed:
Sep. 23, 2008
Applicant:
David G. Parman, San Ramon, CA (US);
Inventor:
David G. Parman, San Ramon, CA (US);
Assignee:
Pentair Thermal Management LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 36/04 (2006.01);
U.S. Cl.
CPC ...
E21B 36/04 (2013.01); Y10T 29/49826 (2015.01);
Abstract
A skin effect heating cable used to form a heat tracing circuit for heating a production pipe carrying process media. The skin effect heating cable includes a heating tube which includes a conductor, an insulating layer wrapped around the conductor and a dielectric fluid disposed between the insulating layer and the inner wall of the heating tube. The dielectric fluid increases the heat transfer characteristic from the conductor to the heating tube while providing mechanical load relief to the cable.