|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||425/145 ; 264/405 ; 264/142 ; 425/146|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 2|
An apparatus for controlling extrusion back-pressure in a face cutting apparatus having an extrudate feed means, a die and a cutter is provided. The apparatus consists of a pair of nested dies, one upstream and one downstream, each die having a plurality of areas, each of the areas having a plurality of extrusion orifices. The nested dies are movable relative to another. In one relative position, the orifices of the upstream die exactly aligned with the orifices of the downstream die. Means are provided for relative movement of the dies in response to a ...
In a face cutting apparatus having an extrudate feed means with an extrudate delivery end, a die means and a cutter means, an apparatus for controlling extrusion back pressure comprising: (a) an upstream die having a plurality of areas, only one of the areas being able to align with the delivery end of said extrudate feed means at any one time, each of said areas having a plurality of extrusion orifices through which an extrudate is adapted to be extruded, the upstream die having a first area with orifices of a different size from the orifices of a secon...