Abstract:
Disclosed is an evacuated sorbent assembly for coupling to a liquid refrigerant reservoir and a cooling device comprised of at least one sorbent section, at least one liquid passageway section, at least one wicking material, at least one thermal spacer, a vapor-permeable membrane, a heat-removing material, at least one liquid barrier, a liquid refrigerant reservoir, and a valve. The sorbent section contains a sorbent for a liquid refrigerant. The liquid passageway section is adjacent the sorbent section and defines a liquid passageway through a portion of the evacuated sorbent assembly and cooling device to the sorbent section. The wicking material is disposed in the liquid passageway section. The thermal spacer is in contact with the sorbent section. The vapor-permeable membrane is interposed between the liquid passageway section and the thermal spacer. The heat-removing material is in thermal contact with the sorbent. The liquid barrier is interposed between the heat-removing material and the sorbent. The liquid refrigerant reservoir is adjacent the liquid passageway section. The valve controls liquid communication between the liquid passageway section and the liquid refrigerant reservoir. The cooling device includes a casing that surrounds the sorbent section, liquid passageway section, wicking material, thermal spacer, vapor-permeable membrane, heat-removing material, liquid barrier, liquid refrigerant reservoir, and valve.
Abstract:
Apparatus is described for feeding a cryosurgical device by passing a liquid cryogen (e.g. liquid nitrogen) through the device to produce cooling by vaporization, and to enable thawing of the device by passing a heated inert thaw gas (e.g. nitrogen gas) through the device when the liquid cryogen is turned off. The thaw gas is passed through the device in the same direction of flow as the liquid cryogen. The apparatus can supply a plurality of cryosurgical devices, and provide independent control of cryogen and thaw for each probe. Novel valve arrangements are also disclosed for controlling the supply of liquid cryogen and the supply of the thaw gas.
Abstract:
A sorption cooling system for providing cooled air to the cabin of a vehicle. The sorption cooling system includes an evaporator, a condenser adapted to fluidly communication with the evaporator, and a plurality of adsorbent beds adapted for fluid communication with the condenser and the evaporator. Each adsorbent bed includes a fluid impermeable casing, desiccant sheets having apertures therethrough, a refrigerant flow path for flowing a refrigerant proximal to a first side of the desiccant sheets, and a coolant flow path for flowing a coolant fluid proximal to a second side of the desiccant sheets. The apertures are a portion of one of the refrigerant and coolant flow paths.
Abstract:
A sorption cooling system for providing cooled air to the cabin of a vehicle. The sorption cooling system includes an evaporator, a condenser adapted to fluidly communication with the evaporator, and a plurality of adsorbent beds adapted for fluid communication with the condenser and the evaporator. Each adsorbent bed includes a fluid impermeable casing, desiccant sheets having apertures therethrough, a refrigerant flow path for flowing a refrigerant proximal to a first side of the desiccant sheets, and a coolant flow path for flowing a coolant fluid proximal to a second side of the desiccant sheets. The apertures are a portion of one of the refrigerant and coolant flow paths.
Abstract:
A vacuum thermal insulation product is formed of aporous thermal insulation material encased in an evacuated enclosure, with least a portion of the evacuated enclosure including a layer of an electroplated metal.
Abstract:
Food preferences for a particular customer are requested from a universally accessible database, wherein a key for the particular customer is required to access the food preferences for the particular customer. The food preferences for the particular customer are compared with multiple previously stored food menu items. A food menu comprising only said food menu items that satisfy the food preferences for the particular customer are selected, such that an electronic food menu is specified for a particular customer.
Abstract:
Disclosed is a liquid refrigerant reservoir and a cooling device comprised of at least one sorbent section, at least one liquid passageway section, at least one wicking material, at least one thermal spacer, a vapor-permeable membrane, a heat-removing material, at least one liquid barrier, a liquid refrigerant reservoir, and a valve. The sorbent section contains a sorbent for a liquid refrigerant. The liquid passageway section is adjacent the sorbent section and defines a liquid passageway through a portion of the evacuated sorbent assembly and cooling device to the sorbent section. The wicking material is disposed in the liquid passageway section. The thermal spacer is in contact with the sorbent section. The vapor-permeable membrane is interposed between the liquid passageway section and the thermal spacer. The heat-removing material is in thermal contact with the sorbent. The liquid barrier is interposed between the heat-removing material and the sorbent. The liquid refrigerant reservoir is adjacent the liquid passageway section. The valve controls liquid communication between the liquid passageway section and the liquid refrigerant reservoir. The cooling device includes a casing that surrounds the sorbent section, liquid passageway section, wicking material, thermal spacer, vapor-permeable membrane, heat-removing material, liquid barrier, liquid refrigerant reservoir, and valve.