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:
May. 01, 2018

Filed:

Nov. 05, 2014
Applicant:

Rehau Ag + CO, Rehau, DE;

Inventors:

Thomas Lanzl, Marktredwitz, DE;

Franz Hofmann, Münchberg, DE;

Markus Friederich, Bergtheim, DE;

Marina Feist, Hof, DE;

Andreas Gruhl, Dresden, DE;

Assignee:

REHAU AG+CO, Rehau, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/32 (2006.01); F17C 1/06 (2006.01); B29C 49/04 (2006.01); B29C 70/44 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/04 (2013.01); B29C 70/32 (2013.01); B29C 70/443 (2013.01); B29C 70/446 (2013.01); F17C 1/06 (2013.01); B29L 2031/7156 (2013.01); F17C 2221/012 (2013.01);
Abstract

The invention relates to a method for producing a pressure accumulator (), in particular for storing hydrogen in motor vehicles. First, a pressure accumulator liner () which has at least one pole cap (') is produced preferably by means of a plastic blow molding method, and the outside of the liner () is then provided, preferably braided, with a multi-ply reinforcing layer (), which has reinforcing fibers (). According to the invention, a fiber supply cap (′) is applied on the pole cap (′) prior to applying the reinforcing fibers (), the outer surface of the fiber supply cap being spaced from the pole region (′) of the pole cap (′). The reinforcing fibers () are applied onto the body of the liner () and in the pole region (′) so as to correspond to the outer surface of the fiber supply cap (′) while the reinforcing layer () is applied such that the inner reinforcing layer () plies which are formed by the reinforcing fibers () are provided with a fiber supply () in the pole region (′) on the basis of the distance between the outer surface of the fiber supply cap (′) and the pole region (′) of the pole cap (′). The invention also relates to a pressure accumulator () produced in a corresponding manner.


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