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US 10,244,775 B1Granted
Device and method for dosing cryogenic liquid
AssigneeSmitten Ventures, Inc.
InventorsRobyn Sue Fisher, David M Fischer, Jonathan Fischer, Whitfield Fowler
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A system comprising:
- a container mount;
- a container having a bottom and sides configured to hold ingredients, the container configured to attach to the container mount;
- a coolant dosing system configured to provide a controlled amount of coolant to the ingredients in the container;
- and
- first and second beaters configured to mix the ingredients in the container, each of the first and second beaters configured to scrape the ingredients from a surface of the other of the first and second beaters and configured to scrape the ingredients from the sides and the bottom of the container, the first and second beaters being disposed to pass within a distance of each other, the distance being sufficient to cause the first and second beaters to scrape the ingredients from the surface of the other of the first and second beaters.
2 more elements
A device for making a frozen confection, the device comprising:
- a container having a bottom and sides configured to hold ingredients;
- first and second beaters configured to mix the ingredients in the container, each of the first and second beaters comprising:
- a shaft, and
- a helical spiral secured to the shaft;
- and
- a motor configured to rotate the first and second beaters, each of the first and second beaters positioned such that, during rotation by the motor:
- a surface of the first and second beaters passes within a first distance of a surface of the other of the first and second beaters to scrape the ingredients from the surface of the other of the first and second beaters,
- a bottom surface of each of the first and second beaters passes within a second distance of the bottom of the container to scrape the ingredients from the bottom of the container,
- an outer edge of at least one of the first and second beaters passes within a third distance of the sides of the container to scrape the ingredients from the sides of the container, and
- wherein the helical spirals of the first and second beaters positioned such that an outer edge of one of the helical spirals is less than 3/16th inches from the sides of the container and a bottom of each of the helical spirals is less than 3/16th inches from the bottom of the container.
7 more elements
A mixer, comprising:
- first and second beaters configured to mix ingredients in a container, each of the first and second beaters comprising:
- a shaft, and
- a helical spiral having a pitch of the spiral, a diameter of the spiral, and a wire diameter,
- wherein the helical spiral of the first beater overlaps with the helical spiral of the second beater;
- and
- a motor configured to rotate the first and second beaters at a same speed and in a same direction, each of the first and second beaters positioned such that, during rotation by the motor, a surface of the first and second beaters passes within a distance of a surface of the other of the first and second beaters to scrape the ingredients from the surface of the other of the first and second beaters.
3 more elements
Dependencies are inferred from the claim text.