The present invention is a high-performance ultra-low temperature chest freezer capable of reaching temperatures as low as 160 C. within several hours with the capability to automatically and continually defrost and dehumidify its payload bay before, during, and after a door open event without needing to cease freezing operations or raise the setpoint.

An exemplary method protects a delicate device from potential damage from shock or vibration. A material in a liquid state is placed in contact with the delicate device. The liquid material is cooled causing it to transition to a solid state which stabilizes the delicate device in contact with the solid material against shock and vibration. The solid state material is heated causing it to sublimate into a gas thus releasing the delicate device for operation.

The present invention is a high-performance ultra-low temperature chest freezer capable of reaching temperatures as low as 160 C. within several hours with the capability to automatically and continually defrost and dehumidify its payload bay before, during, and after a door open event without needing to cease freezing operations or raise the setpoint.

A freezer includes a plurality of shelves in an insulated payload bay; a plurality of evaporators coupled to the payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators with a pressure of at least 90 psi to supply the coolant at each evaporator with at least 80 gallons per hour of coolant; and a plurality of fans to circulate cooled air in the payload bay.

The present disclosure relates to a cryocooling system and method. The system includes a sample well and a sample chamber, each of which having an interior that is sized and shaped to hold a cryocooling gas at cryogenic temperatures and a pressure below 1 atm. The sample chamber is also sized and shaped to hold a sample substance to be cryocooled. An impedance tube connects the interior of the sample well to the interior of the sample chamber to allow cryocooling gas to move from the sample well to the sample chamber. A vacuum tube is connected to the interior of the sample chamber on one side and to a vacuum pump via a vacuum port on the other. The vacuum tube is sized and shaped to allow cryocooling gas within the sample chamber to be pumped out of the sample chamber by the vacuum pump.

An invention concerns a moisture control in a cryotherapy system and creating of snow mist. The system comprises a treatment chamber for at least one person, a closable entry to the treatment chamber, and a cooling apparatus. The cooling apparatus comprises an evaporator configured to function with a coolant and a valve for flow control of the coolant, wherein the evaporator is placed in the treatment chamber and the valve is coupled to the evaporator. The system further comprises a ventilation aperture for obtaining an additional air into the treatment chamber, the ventilation aperture being placed far from the evaporator to such spot that the additional air flows from the ventilation aperture towards the centre of the treatment chamber and simultaneously mixes with an air included in the treatment chamber so that water vapour of the additional air changes from gas to solid ice crystals and forms snow mist in the treatment chamber.

A memory system includes a voltage generator disposed in a high temperature region, and suitable for generating a first voltage; a memory disposed in a low temperature region, and suitable for using a second voltage; and a voltage converter disposed between the high temperature region and the low temperature region, suitable for converting the first voltage into the second voltage, and including a core made from a material having lower heat conductivity than a metal.

A freezer includes a plurality of shelves in an insulated payload bay; a plurality of evaporators coupled to the payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators with a pressure of at least 90 psi to supply the coolant at each evaporator with at least 80 gallons per hour of coolant; and a plurality of fans to circulate cooled air in the payload bay.

The present invention stores a cooled sample subjected to freezing treatment, or the like, while preventing the formation of condensation and frost-like substances and loads the sample into a sample holder for observation using a charged particle beam device. The present invention is provided with a main body for storing a sample and a lid unit mounted above the main body and is characterized in that the main body is divided into a first space and a second space by a partition member; the first space accommodates a cooling medium for cooling the sample; the second space has, disposed therein, a heating unit for heating the cooling medium accommodated in the first space; and the lid unit has, formed therein, a discharge port for discharging the gas generated by the heating of the cooling medium to the outside.

Disclosed are a cold box structure with cold box panels partly built-in and an installation method therefor. The cold box structure is mainly applied to plate-fin heat exchangers, and in particular to high-pressure aluminum plate-fin heat exchangers. The cold box structure comprises a base, a cold box support frame, four cold box panels, and a cold box top plate, and a plate-fin heat exchanger is placed inside the cold box. Some of or all the four cold box panels can be placed inside the cold box support frame as needed. The cold box structure can protect the cold box support frame from being damaged by cryogenic steam ejected from the plate fin-heat exchanger due to leakage, and further enables the discovering of leakage situations of the plate-fin heat exchanger from outer surfaces of the cold box panels in a timely manner.