EP 1985753 B1 20100224 - Sheet of fibrous material comprising an annular window and method of manufacturing same
Title (en)
Sheet of fibrous material comprising an annular window and method of manufacturing same
Title (de)
Blatt aus Fasermaterial, das ein ringförmiges Fenster umfasst, und entsprechendes Herstellungsverfahren
Title (fr)
Feuille de matière fibreuse comportant une fenêtre annulaire et procédé de réalisation
Publication
Application
Priority
FR 0702829 A 20070419
Abstract (en)
[origin: EP1985753A1] The fibrous material sheet comprises an annular window (10) formed by an annular film segment (4) having an internal edge (6) and an external edge (7) trapped in the fibrous material. The annular film segment has perforations along the edge. The edge of the annular film segment is toothed. The toothed edge has tooth in slots and triangular tooth. An independent claim is included for a method for the production of fibrous material sheet.
IPC 8 full level
D21F 11/08 (2006.01); D21F 1/44 (2006.01); D21H 21/42 (2006.01); D21H 27/32 (2006.01)
CPC (source: EP)
D21F 1/44 (2013.01); D21F 11/08 (2013.01); D21H 21/40 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1985753 A1 20081029; EP 1985753 B1 20100224; AT E458858 T1 20100315; DE 602008000684 D1 20100408; ES 2340226 T3 20100531; FR 2915210 A1 20081024; FR 2915210 B1 20090605
DOCDB simple family (application)
EP 08290269 A 20080321; AT 08290269 T 20080321; DE 602008000684 T 20080321; ES 08290269 T 20080321; FR 0702829 A 20070419