Foam-forming assembly, squeeze foamer and dispensing device

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 7/28 (2006.01) B67D 7/74 (2010.01) A47K 5/12 (2006.01) A47K 5/14 (2006.01) B01F 3/04 (2006.01) B05B 11/04 (2006.01)

Patent

CA 2670090

The invention relates to a foam- forming assembly for forming a foam, comprising a housing (5) having an air passage (11) and a liquid passage (9) which each end in a mouth and which are in communication with a dispensing passage (13) which ends in a dispensing opening (8), and a valve body (6). The invention is characterized in that the mouth (10) of the liquid passage is annular and the mouth (12) of the air passage and an entry port (30) of the dispensing passage are substantially provided on the circumference of an imaginary cxrcle, in which between the annular mouth of the liquid passage and the mouth of the air passage and/or the entry port of the dispensing passage an annular sealing surface (4c) is provided, against which, in rest position, the valve body (6) sealingly engages, and in which during dispensing the valve body becomes detached of the sealing surface such that the mouth of the air passage, the mouth of the liquid passage and the entry port of the dispensing passage substantially simultaneously come in fluid communication with each other.

La présente invention concerne un ensemble moussant destiné à la formation d'une mousse et comprenant un logement possédant une conduite d'air et une conduite de liquide finissant chacune dans une embouchure et communiquant avec une conduite de distribution finissant dans une extrémité de distribution, ainsi qu'un corps de clapet. L'innovation est caractérisée en ce que l'embouchure de la conduite de liquide est annulaire et l'embouchure de la conduite d'air ainsi qu'un orifice d'entrée de la conduite de distribution sont sensiblement disposées sur la circonférence d'un cercle imaginaire, une surface d'étanchéité étant disposée entre l'embouchure annulaire de la conduite de liquide et l'embouchure de la conduite d'air et/ou l'orifice d'entrée de la conduite de distribution, contre laquelle, en position de repos, le corps de clapet s'engage de manière étanche et, durant la distribution, le corps de clapet se détachant de la surface d'étanchéité de telle sorte que l'embouchure de la conduit d'air, l'embouchure de la conduite de liquide et l'orifice d'entrée de la conduite de distribution entrent en communication fluidique les unes avec les autres de manière sensiblement simultanée.

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