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.

Date of Patent:
Nov. 13, 2012

Filed:

Oct. 24, 2007
Applicants:

Mehdi M. Emad, Collegeville, PA (US);

Franck Bertoux, Montreal, CA (US);

Gregory S. O'brien, Downingtown, PA (US);

Inventors:

Mehdi M. Emad, Collegeville, PA (US);

Franck Bertoux, Montreal, CA (US);

Gregory S. O'Brien, Downingtown, PA (US);

Assignee:

Arkema Inc., King of Prussia, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a symmetrical multi-layer tube based on polyamide and ethyl vinyl alcohol (EVOH) or polyvinyl alcohol (PVOH) for transferring fluids. As examples of tubes for transferring fluids, mention may be made of fuel (gasoline, diesel fuel) pipes, in particular for carrying fuel from the tank to the engine of motor vehicles. Other examples of fluid transfer include, but are not limited to, the fluids used in fuel cells, COsystems for cooling, hydraulic systems, cooling circuits and air-conditioning circuits, and medium-pressure power transfer.


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