Patent ID: 6302572
Filing Date: 2001-10-16
Classification: B29B,B29C

Abstract:
A back vented barrel for an extruding assembly comprising;a block having a top surface (12), a bottom surface (14), a front surface (18), a back surface (16), and first (20) and second (22) side surfaces,a main extruder passage (24) extending between said front (18) and back (16) surfaces,a feed extruder passage (26) extending from said first side surface (20) and into said main extruder passage (24),a vent passage (28) extending from said top surface (12) into said main extruder passage (24),a vent passage adapter (36) selectively disposed in said vent passage (28) for controlling the venting of gases, said vent passage adapter (36) including a mounting plate (38) for attachment to said top surface (12) of said block,at least one of a restrictor member (44) and a screw cover (40) mounted to and descending from said mounting plate (38),a first attachment hole disposed within said mounting plate (38) for providing a mounting point for said restrictor member (44), and a second attachment hole disposed within said mounting plate (38) spaced from said first attachment hole for providing a mounting point for said screw cover (40) in spaced relationship to said restrictor member (44) such that said restrictor member (44) and said screw cover (40) may both be mounted to and removed from said mounting plate (38) independently of each other.