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. 31, 2024
Filed:
May. 05, 2020
Türk & Hillinger Gmbh, Tuttlingen, DE;
Andreas Schlipf, Tuttlingen, DE;
TÜRK & HILLINGER GMBH, Tuttlingen, DE;
Abstract
A method for manufacturing an electrical heating device includes the steps of providing a coil form with a longitudinal axis, winding an electrical heating element on the coil form along the longitudinal axis and inserting one end section of the electrical heating element and a connecting wire into the opening passing through the coil form, inserting the coil form with an electrical heating element wound on it into an opening passing through the coil form parallel to the longitudinal axis into the interior of a tubular metal jacket, filling the tubular metal jacket with an electrically insulating, heat-conductive powder and compacting the tubular metal jacket with coil form inserted therein and filled with the electrically insulating, heat-conductive powder, wherein, by means of the compaction, the coil form is deformed to change the ratio between the length of the main axis and the length of the secondary axis.