Method and device for cooling a mass of a substance

Details Method and device for cooling a mass of a substance Method and device for cooling a mass of a substance

2007-09-04

2007-09-04

Norman, Marc (Department: 3744)

Refrigeration

Processes

Treating an article

C062S384000

Reexamination Certificate

active

10491656

ABSTRACT:
A method and a device for cooling a mass of meat-, tissue-, vegetable- and/or fruit-containing substance in a container, in particular a mixer, blender or mill, using liquefied nitrogen (N2) which is supplied in the lower region of the container at a constant working pressure via at least one nozzle. During the cooling process and/or in stoppage times, the nitrogen is briefly supplied to the nozzle or, via the latter, into the container by means of at least one pressure pulse that is increased in relation to the working pressure. The pulsed supply of pressurized nitrogen blows blocked and/or iced-up nozzles free again and thus ensures a more reliable operation of cooling a mass of a substance. This method and device are suitable, in particular, for use in foodstuff technology.

REFERENCES:
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patent: 6026648 (2000-02-01), Cloarec et al.
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patent: 33 44 521 (1985-06-01), None
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patent: 0 978 697 (2000-02-01), None
patent: WO98 57196 (1998-12-01), None
International Search Report for PCT/EP02/11352.

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