Cross-flow filtration cassettes and methods for fabrication...

Details Cross-flow filtration cassettes and methods for fabrication... Cross-flow filtration cassettes and methods for fabrication...

B - Operations, Transporting

01

D

B01D 63/00 (2006.01) B01D 63/08 (2006.01)

Patent

CA 2479687

This invention relates generally to filtration cassettes (10), and, more particularly to methods of fabricating cross-flow filtration cassettes. Cassettes of the invention are characterized, in part, by an internal porting (e.g., manifolding) feature (5 and 7) which eliminates the need for a separate step to seal individual components prior to assembly of the filtration cassette. Filtration cassettes of the present invention can be manufactured from conventional membrane (13) and flow screen (9) components and can utilize both injection molding and vacuum assisted resin transfer molding fabrication processes.

Cette invention concerne généralement des cassettes de filtration (10) et, plus particulièrement, des procédés de fabrication de cassettes de filtration à contre courant. Les cassettes de l'invention sont caractérisées, en partie, par un élément (5 et 7) à orifice axial (p. ex. tubulure d'admission), qui élimine la nécessité de passer par une étape distincte de fermeture hermétique des éléments individuels avant l'assemblage de la cassette de filtration. La fabrication des cassettes de filtration de l'invention peut s'effectuer avec une membrane classique (13) et des éléments de tamis d'écoulement (9), et mettre en oeuvre des procédés de fabrication tant par moulage par injection que par moulage par transfert de résine assisté par dépression.

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