Foam dispensing gun

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 7/04 (2006.01) B29B 7/74 (2006.01) B05B 1/30 (2006.01) B05B 7/12 (2006.01)

Patent

CA 2186474

A foam dispensing gun has a body (10) with a depending handle (11). The body has two passageways (12, 13) divided into forward and rearward portions by an intermediate chamber. A hose connector and duck-bill one-way valve (25) are mounted in the rearward portion of each passageway, and a valve member (31) extends through both the forward and rearward portions of each passageway. The valve member has a conical needle valve (35) mating with a conical valve seat (37) that opens directly to the nose of the body (40). A trigger lever (51) is pivotally mounted in the chamber and engages the valve members to open and close the valves. A disposable nozzle (65) with a mixing chamber (66) and outlet (67) is attached about the nose of the body by resilient arms (71) engaging with ears (72) extending from the body.

Pistolet distributeur de mousse constitué d'un corps (10) comprenant une poignée intégrée (11). Le corps comprend deux passages (12, 13) séparés en parties avant et arrière par une chambre intermédiaire. Un raccord de tuyau et un clapet de retenue (25) en bec de canard sont montés dans la partie arrière de chaque passage et un clapet (31) s'étend dans les parties avant et arrière de chaque passage. Le clapet comprend une soupape à pointeau conique (35) prévue pour s'accoupler avec un siège (37) de soupape conique qui s'ouvre directement vers la partie avant rétrécie du corps (40). Un levier de déclenchement (51) est monté pivotant dans la chambre et se trouve en contact avec les clapets pour ouvrir et fermer les soupapes. Un ajutage jetable (65) comprenant une chambre de mélange (66) et une sortie (67) est fixé sur la partie avant du corps au moyen de bras élastiques (71) qui se bloquent dans des parties saillantes (72) s'étendant depuis ledit corps.

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