Abstract: A method and apparatus for coagulating a coextruded collagen gel on a sausage strand by removing residual brine from the strand after coagulation by passing the elongated sausage strand through an aperture of a flexible diaphragm having a diameter equal to that of the strand.

Abstract: An extrusion attachment for sausage making machines have three concentric tubes with the inner tube defining a first passageway, the space between the inner and intermediate tubes comprising a second passageway, and the space between the outer tube and the intermediate tube defining a third passageway. The diameter of the inner tube is small so that meat emulsion passing into the inner tube is subjected to a higher pressure than that of the pressure in the second passageway. The lower pressure meat material in the second passageway is thinly coated on the strand of the high pressure meat material extruded from the inner tube. A thin layer of collagen material is extruded from the third passageway for deposit on the outer surface of the meat layer extruded from the second passageway. An alternate extrusion attachment has only two concentric tubes as defined above with an elongated hollow casing on the outer surface of the two tubes adapted to receive a coextruded strand of sausage.

Abstract: An extrusion attachment for sausage making machines have three connection tubes with the inner tube defining a first passageway, the space between the inner and intermediate tubes comprising a second passageway, and the space between the outer tube and the intermediate tube defining a third passageway. The diameter of the inner tube is small so that meat emulsion passing into the inner tube is subjected to a higher pressure than that of the pressure in the second passageway. The lower pressure meat material in the second passageway is thinly coated on the strand of the high pressure meat material extruded from the inner tube. A thin layer of collagen material is extruded from the third passageway for deposit on the outer surface of the meat layer extruded from the second passageway.

Abstract: An extrusion attachment for sausage making machines have three connection concentric tubes with the inner tube defining a first passageway, the space between the inner restrictor and intermediate second tubes comprising a second first passageway, and the space between the outer third tube and the intermediate second tube defining a third second passageway. The diameter of the inner restrictor tube is small so that meat emulsion passing into the inner restrictor tube is subjected to a higher pressure than that of the pressure in the second first passageway. The lower pressure meat material in the second first passageway is thinly coated on the strand of the high pressure meat material extruded from the inner restrictor tube. A thin layer of collagen material is extruded from the third second passageway for deposit on the outer surface of the meat layer extruded from the second first passageway.