Spray head

Details Spray head Spray head

B - Operations, Transporting

29

B

B29B 7/76 (2006.01)

Patent

CA 2608381

A spray head for discharging a material that is composed of at least two reactive components comprises a material feeding device (14) for a first component, a material feeding device (18) for a second component, a mixing chamber (44) for mixing the two components, a reciprocating piston (32) and a discharge channel (27) for discharging the components that are mixed with each other. The invention is characterized in that the mixing chamber (27) is substantially provided inside the reciprocating piston (32). The piston (32) and the material feeding devices (14, 18) are configured in such a manner that a supply of the components to the mixing chamber (44) is possible in at least one position of the piston (32) and in that the mixing chamber (44) is fluidically connected/connectable to the discharge channel (27).

La présente invention concerne une tête de pulvérisation destinée à émettre une substance qui se compose d'au moins deux composantes réactives, comprenant un dispositif d'apport de substance (14) destiné à une première composante, un dispositif d'apport de substance (18) destiné à une seconde composante, une chambre de mélange (44) qui sert à mélanger les deux composantes, un piston à mouvement alternatif (32), et un canal de sortie (27) qui sert à émettre les composantes mélangées. Selon l'invention, la chambre de mélange (27) se trouve sensiblement dans le piston à mouvement alternatif (32), le piston (32) et les dispositifs d'apport de substance (14, 18) étant conçus de sorte que, dans au moins une position du piston (32), un apport des composantes dans la chambre de mélange (44), est possible, et la chambre de mélange (44) est reliée ou peut être reliée du point de vue écoulement, au canal de sortie (27).

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