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.:

US 7967029 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 28, 2011

Filed:

Sep. 07, 2007
Applicants:

Thomas Baur, Weilheim, DE;

Thomas Winkeler, Deizisau, DE;

Peter Riedel, Esslingen, DE;

Inventors:

Thomas Baur, Weilheim, DE;

Thomas Winkeler, Deizisau, DE;

Peter Riedel, Esslingen, DE;

Assignee:

Daimler AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a device for conveying liquids or moist gases through a closed duct in a vehicle fuel cell power systems, freezing of the duct is prevented by providing a part of its internal wall flow passages or flow chambers with a nonwoven material. The nonwoven material absorbs liquid in disperse form at low temperatures through its capillary action and inhibits premature ice formation.


Find Patent Forward Citations

Baur, Thomas. (2011). Duct optimization to prevent freezing (U.S. Patent No. 7967029). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7967029

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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