US 9,808,980 B2
Coextrusion feedblock, coextrusion profiling insert assembly, and methods of operation
Michael K. Truscott, Chippewa Falls, WI (US)
Assigned to Nordson Corporation, Westlake, OH (US)
Filed by Nordson Corporation, Westlake, OH (US)
Filed on Jul. 29, 2014, as Appl. No. 14/445,604.
Prior Publication US 2016/0031145 A1, Feb. 4, 2016
Int. Cl. B29C 47/06 (2006.01); B29C 47/14 (2006.01); B29C 47/12 (2006.01); B29C 47/56 (2006.01); B29C 47/04 (2006.01); B29C 47/08 (2006.01); B29C 47/92 (2006.01)
CPC B29C 47/124 (2013.01) [B29C 47/04 (2013.01); B29C 47/06 (2013.01); B29C 47/128 (2013.01); B29C 47/56 (2013.01); B29C 47/085 (2013.01); B29C 47/0816 (2013.01); B29C 47/0828 (2013.01); B29C 47/0837 (2013.01); B29C 47/145 (2013.01); B29C 47/92 (2013.01); B29C 2947/926 (2013.01); B29C 2947/92628 (2013.01); B29C 2947/92695 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A coextrusion feedblock for producing an extrudate, said coextrusion feedblock comprising:
an adjuster,
a viscosity compensation device having a flex region,
an actuator in contact with said viscosity compensation device,
a central extrusion conduit having a height, and
a coextrusion conduit extending between said adjuster and said viscosity compensation device, said coextrusion conduit having a gap height, a width, and a length,
wherein said coextrusion conduit opens into said central extrusion conduit, wherein said adjuster is adjustable to simultaneously change said gap height of said coextrusion conduit and said height of said central extrusion conduit, and wherein said actuator is adjustable to apply a force to bend said flex region and thereby adjust said gap height of said coextrusion conduit without changing said height of said central extrusion conduit.
 
9. A coextrusion profiling insert assembly constructed to be mounted in a coextrusion feedblock having a central extrusion conduit with a height, said coextrusion profiling insert assembly comprising:
a adjuster,
a viscosity compensation device comprising a flex region, and
an actuator,
wherein, when said coextrusion profiling insert assembly is mounted in the coextrusion feedblock having a coextrusion conduit with a gap height extending between said adjuster and said viscosity compensation device, said actuator is adjustable to apply a force to bend said flex region and thereby adjust said gap height of said coextrusion conduit without changing said height of said central extrusion conduit,
wherein said coextrusion conduit opens into said central extrusion conduit, and
wherein said adjuster is adjustable to simultaneously change said gap height of said coextrusion conduit and said height of said central extrusion conduit.