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Current content: 155 263 406 patent documents

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215 613 new documents added

1 342 057 documents amended

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EP 0146441 B1 19880302 - METHOD AND DEVICE FOR MAKING A WEB OF CORRUGATED BOARD

Title (en)

METHOD AND DEVICE FOR MAKING A WEB OF CORRUGATED BOARD

Publication

EP 0146441 B1 19880302 (FR)

Application

EP 84402307 A 19841113

Priority

FR 8318280 A 19831117

Abstract (en)

[origin: US4589944A] A process for producing a strip (4) of corrugated cardboard by gluing one or more sheets (8, 10) of single-face corrugated cardboard and a sheet (6) of covering paper. At least the corrugations of the upper sheet (10) are heated by means of an infra-red radiation panel (40), after the glue has been deposited on them in the gluer (1) and before the sheets come in contact with one another in the double-face machine (2).

IPC 1-7

B31F 1/28

IPC 8 full level

B31F 1/28 (2006.01)

CPC (source: EP US)

B31F 1/2804 (2013.01 - EP US); B31F 1/285 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB IT

DOCDB simple family (publication)

EP 0146441 A1 19850626; EP 0146441 B1 19880302; DE 3469503 D1 19880407; FR 2555101 A1 19850524; FR 2555101 B1 19871023; US 4589944 A 19860520

DOCDB simple family (application)

EP 84402307 A 19841113; DE 3469503 T 19841113; FR 8318280 A 19831117; US 67297984 A 19841119