Global Patent Index - EP 0759357 B1

EP 0759357 B1 2000-05-03 - Method and machine for making window envelopes around a document

Title (en)

Method and machine for making window envelopes around a document

Title (de)

Verfahren und Vorrichtung zur Herstellung von Fensterbriefumschläge um ein Dokumente

Title (fr)

Procédé et installation pour la préparation d'enveloppes à fenêtre autour de documents


EP 0759357 B1 (FR)


EP 95490024 A


EP 95490024 A

Abstract (en)

[origin: EP0759357A1] The envelope blank (6) is taken from an opaque band by cutting along lines (6A) perpendicular to its edges (1C,1D) to form a series of identical modules (6B). Each envelope is made by folding flaps (5) of the blank along lines (5A) parallel to opposite sides of the document (2). An imprint and a window (4) are made on one of the external and internal faces. The longitudinal position of an index (8) is defined and memorised relative to one of the longitudinal and transverse positions of the impression and window. Then the impression is made on one of the band faces (1A,1B), sequentially on each module. The index is marked on each different module along a longitudinal step (P1) equal to the spacing (E) of the cutting lines . Finally the position of the index is detected and relative to it a cut (4A) for each window is made followed by fitting of the screen (4B).

IPC 1-7 (main, further and additional classification)

B31B 19/00; B31B 1/24; B43M 5/04

IPC 8 full level (invention and additional information)

B31B 19/00 (2006.01); B43M 5/04 (2006.01)

CPC (invention and additional information)

B43M 5/04 (2013.01); B31B 70/82 (2017.08); B31B 2150/00 (2017.08); B31B 2160/10 (2017.08)

Designated contracting state (EPC)


DOCDB simple family

EP 0759357 A1 19970226; EP 0759357 B1 20000503; DE 69516684 D1 20000608; DE 69516684 T2 20001214; ES 2146732 T3 20000816