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US 6,688,132 B2Granted
Cooling device and temperature-controlled shipping container using same
AssigneeNanopore, Inc.
InventorsDouglas M. Smith, Kevin H. Roderick, Richard G. Perkes, Vanessa Sinclair, Lois X. Warren
Life of this patent
Estimating the term…
Abstract
A sorption cooling device capable of providing cooling over an extended period of time. The sorption cooling device is particularly useful in a temperature-controlled shipping container that is required to maintain a temperature below ambient for an extended period of time. In one embodiment, the cooling device includes a means for restricting the flow of refrigerant liquid to control the degree of cooling over an extended period of time.
Claims13
A sorption cooling device, comprising:
- a) an evaporator;
- b) an absorber;
- c) at least a first reservoir adapted to contain a liquid;
- d) a liquid disposed in said first reservoir;
- and
- e) flow restriction means disposed between said liquid and said evaporator for restricting the flow of said liquid to said evaporator, wherein said flow restriction means comprises a porous membrane.
3 more elements
A sorption cooling device, comprising:
- a) an evaporator;
- b) an absorber;
- c) at least a first reservoir adapted to contain a liquid;
- d) a liquid disposed in said first reservoir;
- and
- e) flow restriction means disposed between said liquid and said evaporator for restricting the flow of said liquid to said evaporator, wherein said flow restriction means comprises at least one aperture in said first reservoir.
3 more elements
A sorption cooling device, comprising:
- a) an evaporator;
- b) an absorber;
- c) at least a first reservoir adapted to contain a liquid;
- d) a liquid disposed in said first reservoir;
- and
- e) flow restriction means disposed between said liquid and said evaporator for restricting the flow of said liquid to said evaporator, wherein said flow restriction means comprises at least a first capillary tube, said capillary tube having a diameter of from about 20 μm to about 100 μm.
3 more elements
Dependencies are inferred from the claim text.