Device for cooling of fluids and edible foams

Refrigeration – Means producing shaped or modified congealed product – With means for working congealing material – e.g. – beater

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366 85, 366301, A23G 920

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active

053457811

ABSTRACT:
The invention pertains to a device for the cooling of edible foams, where a cooling or freezing system for pre-freezing of the foam is directly outlet-connected to an aeration system, a motor driven extruder device designed as combined deep freezing and transport device is outlet-connected to the cooling and freezing system, in which the pre-frozen foam can be cooled down to storage temperature, and the aeration device, the cooling or freezing system and the extruder device are connected together by means of pipes. The device of the present invention is characterized in that the extruder device has at least one double screw system with two screws positioned parallel to each other with their rotational axes. The lands of the screws of the double screw system scrape against the inner cylinder mantle surface of the housing surrounding it. The threads of the second screw are centered between the threads of the first screw and an increased spacing of the rotational axes of the screws is created, so that the front side of the screw thread of the other screw facing the surface of the cylinder mantle of each screw, has a radial distance from it. The lands of the screws with the surface of the cylinder mantle of the screws and of the inner surface of the cylinder mantle of the housing bounds an extremely flat screw channel.

REFERENCES:
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patent: 3780536 (1973-12-01), Fishman et al.
patent: 3883122 (1975-05-01), Werner
patent: 4034967 (1977-07-01), Gustairs
patent: 4234259 (1980-11-01), Wiedmann et al.
patent: 4733607 (1988-03-01), Star et al.
patent: 5048971 (1991-09-01), Wall et al.
Kanzaki, M., Japanese Application No. 64-163228, Feb. 2, 1991, "Continuous Production of Whipped Food Product and Apparatus Therefor" (Abst. 1991).
Osada, M., Japanese Application No. 60-184781, Mar. 10, 1987, "Production of Edible Dough Using Twin-Screw Extruder and Device" (Abst. 1987).
Deutsches Patentamt Search Report dated Aug. 24, 1992.

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