Multi-stage injection molding filter

Details Multi-stage injection molding filter Multi-stage injection molding filter

B - Operations, Transporting

29

C

18/702

B29C 45/20 (2006.01) B01D 29/44 (2006.01) B01D 35/18 (2006.01) B29C 45/24 (2006.01)

Patent

CA 2008828

Abstract of the Disclosure A multi-stage filter for filtering injection molding melt includes an elongate filter element having a filter inlet end, a filter outlet end and a plurality of filter stages axially disposed on the element and adjoining each other. Each filter stage includes a plurality of axial filter grooves in its outer surface which are spaced apart from a filter chamber wall to define a distinct filter clearance for each filter stage. The axial filter grooves are circumferentially spaced apart from each other and alternate with axial grooves axially extending between adjoining filter stages which define melt transfer passages to transfer melt between filter stages.

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