Global Patent Index - EP 1571933 B1

EP 1571933 B1 20070321 - PROCESS AND APPARATUS FOR HIGH-SPEED FILLING OF COMPOSITE CIGARETTE FILTERS

Title (en)

PROCESS AND APPARATUS FOR HIGH-SPEED FILLING OF COMPOSITE CIGARETTE FILTERS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM FÜLLEN VON MEHRFACH-ZIGARETTENFILTERN MIT HOHER GESCHWINDIGKEIT

Title (fr)

PROCEDE ET APPAREIL DE REMPLISSAGE A VITESSE ELEVEE DE FILTRES COMPOSITES DE CIGARETTES

Publication

EP 1571933 B1 20070321 (EN)

Application

EP 02788389 A 20021219

Priority

IB 0205519 W 20021219

Abstract (en)

[origin: WO2004056221A1] A process of manufacturing composite filter stock (14)rovided that includes several steps. In a first step, a paper carrier strip (50) feeds along a conveyor (30). Along one edge of the carrier strip, the paper is folded back against itself. Fibrous filter segments (22) are then deposited on the carrying strip in spaced apart intervals. The spacing defines cavities (16) between adjacent filter segments. The carrier strip with the deposited filter segments is fed along a path (110) of travel into an elongated guide (26) or support chamber that substantially surrounds the circumference of the paper-enveloped segments (22) and which leaves a narrow fill opening (62)opposite an elongated particulate filling opening (112) that is elongated in the direction of motion of the carrying strip. Suction or a vacuum is concurrently applied adjacent the narrow opening (62), the suction increasing a downward momentum of a gravity feed stream of particulate matter (20) and concurrently vacuums away loose particulate matter. The cavities are concurrently filled with the particulate matter over a length (L) corresponding to a predetermined path of travel of the carrying strip. The folded over edge (104) is then unfolded and adhered to seal the fill opening. The filter stock is then cut to length, the cutting being registered to create discrete composite filter segments.

IPC 8 full level

A24D 3/02 (2006.01); A24D 3/00 (2006.01)

CPC (source: EP KR)

A24D 3/0208 (2013.01 - KR); A24D 3/0225 (2013.01 - EP KR)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

WO 2004056221 A1 20040708; AT E357157 T1 20070415; AU 2002353368 A1 20040714; BR 0215988 A 20051101; BR 0215988 B1 20120124; CA 2510186 A1 20040708; CA 2510186 C 20110215; CN 100581396 C 20100120; CN 1731939 A 20060208; DE 60219083 D1 20070503; DE 60219083 T2 20071213; EP 1571933 A1 20050914; EP 1571933 B1 20070321; ES 2282499 T3 20071016; JP 2006510378 A 20060330; JP 4203021 B2 20081224; KR 100952181 B1 20100409; KR 20050090127 A 20050912; MX PA05006632 A 20051214

DOCDB simple family (application)

IB 0205519 W 20021219; AT 02788389 T 20021219; AU 2002353368 A 20021219; BR 0215988 A 20021219; CA 2510186 A 20021219; CN 02830064 A 20021219; DE 60219083 T 20021219; EP 02788389 A 20021219; ES 02788389 T 20021219; JP 2004561704 A 20021219; KR 20057011093 A 20021219; MX PA05006632 A 20021219