Filter assembly

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/24 (2006.01) B01D 46/00 (2006.01)

Patent

CA 2738618

A filter assembly for an additive manufacturing apparatus has a housing defining a gas inlet and a gas outlet. A filter element is located within the housing between the gas inlet and the gas outlet. The assembly includes valves that can be actuated to seal the gas inlet and the gas outlet. Additionally the assembly has a fluid inlet for allowing ingress of a fluid into the housing. The assembly allows a filter element, which may contain volatile particles, to be changed safely. By sealing the gas inlet and outlet and flooding the housing with a suitable fluid, volatile particles captured by the filter can be neutralised.

L'invention porte sur un ensemble filtre pour un appareil de fabrication d'additif, ayant une enveloppe délimitant une entrée de gaz et une sortie de gaz. Un élément de filtre est situé à l'intérieur de l'enveloppe entre l'entrée de gaz et la sortie de gaz. L'ensemble comprend des soupapes qui peuvent être actionnées pour fermer hermétiquement l'entrée de gaz et la sortie de gaz. De plus l'ensemble a une entrée de fluide pour permettre l'entrée d'un fluide dans l'enveloppe. L'ensemble permet de changer en toute sécurité un élément de filtre, qui peut contenir des particules volatiles. En fermant hermétiquement l'entrée de gaz et la sortie de gaz et en noyant l'enveloppe avec un fluide approprié, on peut neutraliser les particules volatiles captées par le filtre.

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