Device and method for mixing viscous substances

摘要

Systems and methods of producing a frozen food product include dosing ingredients with a liquefied gas while mixing the ingredients using self-cleaning interlocking beaters. The beaters are optionally also disposed to clean a container in which the ingredients are frozen. The rate and amount of cooling is controlled by measuring the quantity of liquid nitrogen, measuring viscosity of the frozen food product, measuring temperature, and/or the like.

主权项

1. A system comprising:
a container mount; a container configured to hold ingredients and to temporally attached to the container mount; a liquid nitrogen dosing system configured to provide a controlled amount of liquid nitrogen to the ingredients in the container such that the ingredients freeze; and beaters configured to mix the ingredients in the container and configured to be self-clearing to each other and clean the sides and bottom of the container, the beaters being disposed to pass within 1/16th of an inch of each other without contacting each other, the self-cleaning being sufficient to remove the frozen ingredients from the interlocking beaters.