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:

Jun. 15, 2011
Applicants:

Markus Häussler, Herbrechtingen, DE;

Konstantin Fenkl, Gerstetten-Heldenfingen, DE;

Wofgang Ruf, Herbrechtingen, DE;

Jürgen Prössl, Horgenzell, DE;

Mathias Schwaner, Ravensburg, DE;

Inventors:

Markus Häussler, Herbrechtingen, DE;

Konstantin Fenkl, Gerstetten-Heldenfingen, DE;

Wofgang Ruf, Herbrechtingen, DE;

Jürgen Prössl, Horgenzell, DE;

Mathias Schwaner, Ravensburg, DE;

Assignee:

Voith Patent GmbH, Heidenheim, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sheet-forming system includes a separating wedge with a separating wedge protrusion in a range of 0.05 to 3.0 of the largest single gap width of at least two nozzle chambers. The separating wedge includes two separating wedge areas, each having one separating wedge angle, an upstream separating wedge starting area and a downstream separating wedge ending area. The two separating wedge angles assume different angles. The separating wedge starting angle of the upstream separating wedge initial area assumes a greater angle than the separating wedge ending angle of the downstream separating wedge end area. At least one separating wedge surface is a nonplanar transitional area between the two separating wedge areas. The fibrous material suspension free jet formed from at least two fibrous material suspension streams has a free jet length of 100 to 500 mm. The forming roll has a diameter of 1,200 to 2,500 mm.


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