US 12,167,746 B2
Set of stick-shaped filters made of cardboard, preform for the manufacture thereof and packaging thereof
Olivier Partouche, Barcelona (ES)
Assigned to Republic Technologies (NA) LLC, Glenview, IL (US)
Appl. No. 17/615,730
Filed by Republic Technologies (NA) LLC, Glenview, IL (US)
PCT Filed Jun. 3, 2020, PCT No. PCT/IB2020/055214
§ 371(c)(1), (2) Date Dec. 1, 2021,
PCT Pub. No. WO2020/245730, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 1906092 (FR), filed on Jun. 7, 2019.
Prior Publication US 2022/0240570 A1, Aug. 4, 2022
Int. Cl. A24D 3/04 (2006.01); A24D 3/10 (2006.01); B65D 85/10 (2006.01)
CPC A24D 3/04 (2013.01) [A24D 3/10 (2013.01); B65D 85/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A set of filters made of cardboard or cellulosic material, wherein said set has the shape of a generally cylindrical stick which consists of a plurality of individual filters, each consisting of a winding on itself of a blank of the cardboard or cellulosic material, said filters, disposed in an end-to-end arrangement adjacent each other, being partially connected in pairs by connecting means, such that it is possible to separate at least one of said filters from said stick by removing or severing said connecting means, and wherein said set comprises only a single sheet of cardboard or cellulosic material in which parallel cutouts which individualize seach filter are formed, and each of the cutouts are partial in that there are, between said cutouts, bridges of material, forming said connecting means, which connect two adjacent blanks.