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:
Jul. 21, 2020
Filed:
Nov. 08, 2013
Continental Automotive Gmbh, Hannover, DE;
Rolf Brueck, Bergisch Gladbach, DE;
Jan Hodgson, Troisdorf, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
A method for operating a device for providing a liquid additive includes feeding the liquid additive along a feeding path having at least one first portion which forms a heat conducting section from a heater of the device into a tank for the liquid additive. The feeding path also has at least one second portion in which a component susceptible to freezing is disposed. The liquid additive is first fed along the feeding path of the device. Subsequently, the feeding of liquid additive is stopped. Then, partial draining of the feeding path takes place, with liquid additive remaining in the at least one first portion of the feeding path while the at least one second portion is being drained. A device for providing a liquid additive is also provided.