Ice cream machine including a secondary cooling loop
AssigneeHarold F. Ross
InventorsHarold F. Ross, Daniel L. Dorn
Life of this patent
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Abstract
An ice cream machine for cooling liquid ice cream into frozen ice cream includes an evaporator system with a secondary evaporator. The evaporator system can be a flooded evaporator or evaporator having an auxiliary tank or section of the evaporator that can ensure that a cooling chamber is surrounded by liquid refrigerant during normal operation. The secondary evaporator ensures consistent temperature within the evaporator during periods of low sales, hold modes, or non-production modes.
Claims20
An evaporator for an ice cream making system, the evaporator comprising:
- an interior surface defining a cooling chamber for chilling a product;
- an evaporator chamber surrounding the cooling chamber;
- and
- a secondary evaporator surrounding the evaporator chamber, the evaporator chamber having a first refrigerant output and the secondary evaporator having a second refrigerant output, the first refrigerant output being coupled in parallel with the second refrigerant output.
An evaporator for use in an ice cream making system including a compressor system having a compressor input assembly and a compressor output assembly, the evaporator comprising:
- a first refrigerant input;
- a second refrigerant input;
- a first refrigerant output;
- a second refrigerant output;
- an exterior surface;
- a first evaporator section within the exterior surface and associated with the first refrigerant input and the first refrigerant output;
- a second evaporator section associated with the second refrigerant input and the second refrigerant output and surrounding the first evaporator section;
- and an interior surface, the interior surface defining an interior cooling chamber, the interior cooling chamber having an ice cream input and an ice cream output;
- and
- wherein the first refrigerant output and the second refrigerant output are for coupling to the compressor input assembly and the first refrigerant input and the second refrigerant input are for coupling to the compressor output assembly.
An evaporator for an ice cream making system, the evaporator comprising:
- a cooling chamber means for chilling a product;
- an evaporator chamber means for chilling the cooling chamber means;
- and
- a secondary evaporator means for surrounding the evaporator chamber means, wherein the evaporator chamber means includes a first refrigerant input and the secondary evaporator means includes a second refrigerant input, the first refrigerant input being coupled in parallel with the second refrigerant input.
Dependencies are inferred from the claim text.