B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
B05B 7/06 (2006.01) B05B 7/12 (2006.01) B05B 7/24 (2006.01)
Patent
CA 2760056
Embodiments of a spray gun incorporating a needle (42) for applying multiple component materials are provided. In accordance with certain embodiments, the spray gun includes a fluid delivery tip assembly (18) comprising an inner passage (40), a hollow needle disposed within the inner passage of the fluid delivery tip assembly, wherein the hollow needle comprises at least two indentions (104) along an outer circumferential surface of the hollow needle near an end of the hollow needle, a first passage (38, 36, 40) configured to deliver a first spray fluid to a fluid tip exit (30) of the fluid delivery tip assembly, wherein the first passage is defined by a volume (40) between the fluid delivery tip assembly and the hollow needle, and a second passage (112) through the hollow needle, wherein the second passage is configured to deliver a second spray fluid to the fluid tip exit of the fluid delivery tip assembly.
L'invention, selon des modes de réalisation, porte sur un pistolet de pulvérisation incorporant une aiguille (42) pour appliquer des matériaux à composants multiples. Selon certains modes de réalisation, le pistolet de pulvérisation comprend un ensemble pointe de distribution de fluide (18) comprenant un passage interne (40), une aiguille creuse disposée à l'intérieur du passage interne de l'ensemble pointe de distribution de fluide, l'aiguille creuse comprenant au moins deux indentations (104) le long d'une surface circonférentielle externe de l'aiguille creuse au voisinage d'une extrémité de l'aiguille creuse, un premier passage (38, 36, 40) configuré pour délivrer un premier fluide de pulvérisation à une sortie de pointe de fluide (30) de l'ensemble pointe de distribution de fluide, le premier passage étant défini par un volume (40) entre l'ensemble pointe de distribution de fluide et l'aiguille creuse, et un second passage (112) à travers l'aiguille creuse, le second passage étant configuré pour délivrer un second fluide de pulvérisation à la sortie de pointe de fluide de l'ensemble pointe de distribution de fluide.
Burns Marvin D.
Charpie Mark E.
Finlayson & Singlehurst
Illinois Tool Works Inc.
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