Abstract: The invention concerns a device for maintaining in optimum hygienic condition the food mixture in the storage compartment and/or the delivery area of an espresso ice-cream or whipped cream delivering machine. The storage compartment and/or the delivery area are treated by UV light or with ozone, preferably acting in an area closed by a door which acts on the light or the supply of ozone.

Abstract: The invention concerns a machine for making espresso ice-cream, of the type comprising a pressurized gas refrigerating circuit composed of a compressor, a condenser, one or more lamination valves as well as heat-exchanger coils in thermal exchange relationship with the mixture storage vat and the mixing and whipping cylinder and characterized in that the refrigerating circuit further comprises an evaporator as well as a system of valves and tubes to interconnect, alternatively and selectively, the components of the circuit, the evaporator and the coils in one of the following sequences:(a) compressor, coils, condenser, lamination valve(s), evaporator, compressor;(b) compressor, condenser, lamination valve(s), coils, evaporator, compressor,respectively for heating and cooling the contents of the mixture storage vat and the mixing and whipping cylinder.

Abstract: The invention relates to a screw for apparatuses for ice-cream production with a vertical whipping vessel. The screw comprises at least one supporting metal blade, fixed to a rotating hub and carrying clutches for removably and substitutably fixing thereon a scraping vane. The screw may further comprise at least a mixture spreading vane acting in cooperation with said scraping vane.

Abstract: The invention relates to an ice-cream machine for family use, comprising a whipping vessel wherein a stirring element is rotatively actuated by a motor, said stirring element comprising a sleeve and one or more blades. In order to improve the stirring operational features, at least one blade is mounted on the sleeve by means of a removable coupling allowing both small torsional and axial motions of the blade with reference to an axis perpendicular to the sleeve axis.

Abstract: The invention concerns a process to perform the alimentary mixtures pasteurization in apparatuses of the type comprising a refrigerating circuit provided with compressor, condenser, expansion valve and evaporator and at least one vessel to contain the alimentary mixture under conditions of thermal exchange with at least one coil. The process according to the invention is characterized in that it comprises the steps of:(a) heating the mixture contained in at least one vessel connecting the components of the refrigerating circuit and the coil to each other in the following order: compressor, coil, condenser, expansion valve, evaporator, compressor(b) cooling the mixture contained in the vessel connecting the components of the refrigerating circuit and the coil to each other in the following order: compressor, condenser, expansion valve, coil evaporator, compressor.

Abstract: The invention relates to an ice-cream machine for family use with removable whisking vessel, of the type comprising its own refrigerating unit formed by a compressor, a condenser, a lamination valve or a capillary and an evaporator in conditions of thermal exchange with the vessel container. In order to allow for the removal of the vessel when the ice-cream is ready, the refrigerating circuit, between said compressor and condenser, has a duct controlled by a solenoid valve, which opens between said lamination valve or capillary and said evaporator, in order to send at the end of the ice-cream formation, the hot gas outflowing from said compressor directly into said evaporator.

Abstract: A pasteurization system for dairy farming products, comprises several basins wherein the pasteurization cycle is effected in sequence so that the heat taken from a basin during cooling phase of the same is utilized to effect the heating phase of one or more basins. This is realized by means of a refrigerating circuit working also as heat pump with a heat exchanger at the end of hot and cold parts. Circuit can be selectively connected with its hot or cold parts to the heating or cooling coil provided for each basin.

Abstract: This invention relates to an ice cream machine for a domestic use which is placed and embedded in a piece of furniture such as kitchen furniture. The refrigerating coil of the ice cream machine includes a branch portion for permanently refrigerating the remaining free space of the furniture.