Patent ID: 9277753
Filing Date: 2016-03-08
CPC Classification: A21C,B29C,B30B

Claim Text:
1. A system for producing a co-filled product having a center layer and an outer layer, the system comprising: a die face comprising a center channel through which the center layer can flow and an outer feed channel through which the outer layer can flow; at least one fluid control device coupled to said center channel, wherein said fluid control device comprises at least two operative positions to cause intermittent flow in the center channel; at least one cutting blade located downstream from the die face, wherein the at least one cutting blade is coupled to a blade mount rotated by a shaft; a sensor in communication with the at least one fluid control device, wherein the sensor determines a location of the at least one cutting blade during cutting by sensing at least one of the blade mount, the at least one cutting blade, and the shaft during rotation, and wherein operation of the at least one fluid control device is synchronized with the location of the at least one cutting blade, which determines the at least two operative positions of the fluid control device to cause the intermittent flow in the center channel, enables the at least one cutting blade to cut through an extrudate to form a puff while avoiding cutting into a section of the extrudate that includes intermittent flow from the center channel.