EP 0014477 A1 19800820 - Method and apparatus for forming filter rod containing particulate material, especially charcoal impregnated filter rod.
Title (en)
Method and apparatus for forming filter rod containing particulate material, especially charcoal impregnated filter rod.
Title (de)
Verfahren und Vorrichtung zur Herstellung eines Teilchenmaterial enthaltenden Filterstranges, insbesondere mit Holzkohle imprägnierten Filterstranges.
Title (fr)
Procédé et appareil pour former une tige de filtre contenant un matériau particulaire, notamment une tige de filtre imprégnée de charbon de bois.
Publication
Application
Priority
US 1175879 A 19790212
Abstract (en)
A laterally widened, flat travelling web (16) of filter material is advanced beneath a rotary roller applicator (40) which propels granular form charcoal (14) onto the web (16) to impregnate and substantially uniformly distribute the charcoal (14) throughout the web.
IPC 1-7
IPC 8 full level
A24D 3/02 (2006.01)
CPC (source: EP)
A24D 3/0225 (2013.01)
Citation (search report)
- US T880009 I4 19701124
- US 3910166 A 19751007 - SEXSTONE JOHN H
- GB 741429 A 19551207 - HEDWIG GAMBLE
- GB 1250170 A 19711020
Designated contracting state (EPC)
CH DE GB IT NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 80100669 A 19800211; AU 5528180 A 19800206