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:
Oct. 02, 2012
Filed:
Jul. 21, 2008
Herbert Gunther, Allendorf, DE;
Siegrid Sommer, Burgwald, DE;
Frederic Zimmermann, Frankenberg, DE;
Gunther Heisskanaltechnik GmbH, Frankenberg, DE;
Abstract
The present invention relates to an electric heater () to heat substantially cylindrical objects (), in particular hot runner nozzles () of hot runner systems, essentially being fitted with at least one cylindrical support and with at least one heating conductor track () deposited on the support (). To reduce premature failure of the heater, the invention stipulates that each heating conductor track () runs substantially in the axial direction (A) of said support (), the heating conductor tracks () being connected to each other by conductor tracks () of lower electrical resistance and each conductor track () running essentially in the tangential direction (T) of the support ().