Portable cooler container
A portable cooler container is provided, with a payload chamber for one or more temperature sensitive or perishable goods. A cooling unit is disposed in the payload chamber. The cooling unit includes a vessel filled with a cooling material (e.g., dry ice) and closed with a lid. One or more variable apertures of the cooling unit are operable to controllably release a chilled gas (e.g., CO2 gas) generated by the cooling material into the payload chamber of the vessel to cool the payload.
1 . A portable cooler container system, comprising:
a thermally insulated vessel having a payload chamber configured to receive a payload of one or more temperature sensitive or perishable goods;
a first lid hingedly coupled or removably coupled to the thermally insulated vessel and configured to seal the chamber of the thermally insulated vessel, the first lid having one or more pressure relief valves configured to at least partially open when pressure in the chamber exceeds a predetermined pressure amount; and
a cooling unit removably disposed in the payload chamber of the thermally insulated vessel that receives the payload so that the payload and cooling unit are in a single chamber, comprising
a cooling vessel defining a chamber configured to receive a cooling material therein,
a second lid hingedly coupled or removably coupled to the cooling vessel and configured to seal the chamber of the cooling vessel, the second lid configured to removably couple to a base surface of the payload chamber, and
one or more variable apertures in one of the cooling vessel and the second lid that are operable to controllably release a chilled gas generated by the cooling material into the payload chamber of the thermally insulated vessel to cool the payload to one or more of a plurality of predetermined temperatures or temperature ranges.
2 . The system of claim 1 , wherein the thermally insulated vessel is vacuum insulated.
3 . The system of claim 1 , wherein the one or more pressure relief valves in the first lid are electrically operated or operated mechanically based on a pressure differential on opposite sides of the first lid.
4 . The system of claim 1 , wherein the cooling vessel is a double-walled insulated vessel.
5 . The system of claim 1 , wherein the cooling material generates a chilled gas via evaporation or sublimation.
6 . The system of claim 1 , wherein the chamber of the cooling vessel is an annular chamber.
7 . The system of claim 1 , wherein the one or more variable apertures are electrically operated or operated mechanically based on a pressure differential between the chamber of the cooling vessel and the payload chamber, the pressure differential being indicative of a temperature in the payload chamber.
8 . The system of claim 1 , wherein the one or more variable apertures are controlled so that one or both of an amount the one or more variable apertures are opened and a duration of said opening of the one or more variable apertures cool the payload chamber to said one of a plurality of predetermined temperatures or temperature ranges.
9 . The system of claim 8 , wherein the one or more variable apertures are electrically operated via circuitry of the cooling unit, the circuitry configured to control one or both of the amount the one or more variable apertures are opened and the duration of said opening of the one or more variable apertures to allow a controlled amount of chilled gas to exit the chamber of the cooling vessel into the payload chamber to cool the payload chamber to a predetermined temperature or temperature range.
10 . The system of claim 9 , wherein each of the plurality of predetermined temperatures or temperature ranges corresponds to a preferred temperature for a payload type.
11 . The system of claim 10 , wherein the circuitry receives a user selected predetermined temperature or temperature range manually via a user interface on the cooling vessel or second lid of the cooling unit or wirelessly from a remote electronic device.
12 . The system of claim 1 , wherein the cooling unit is removably disposed in the thermally insulated vessel.
13 . The system of claim 1 , further comprising a display screen disposed on one or both of the thermally insulated vessel and the first lid, the display screen configured to selectively display shipping information for the portable cooler container.
14 . The system of claim 13 , further comprising a button or touch screen manually actuatable by a user to cause circuitry electrically connected to the display screen to one or both of a) automatically switch sender and recipient information on the display screen to facilitate return of the portable cooler container to a sender and b) automatically wirelessly send a signal to a shipping carrier to alert the shipping carrier that a new electronic shipping label has been issued and that the portable cooler container is ready for pickup.
15 . A portable cooler container system, comprising:
a cooling unit, comprising
a cooling vessel defining a chamber configured to receive a cooling material therein and sized to receive a payload of one or more temperature sensitive or perishable goods adjacent one or more surfaces of the cooling material so that the one or more temperature sensitive or perishable goods and the cooling material are in a single chamber,
a lid hingedly coupled or removably coupled to the cooling vessel and configured to seal the chamber of the cooling vessel, and
one or more variable apertures in one of the cooling vessel and the lid that are operable to controllably release a chilled gas generated by the cooling material from the chamber of the cooling vessel to one or more of a plurality of predetermined temperatures or temperature ranges.
16 . The system of claim 15 , further comprising an insulated vessel having a chamber configured to removably receive the cooling unit therein, one or more gaps defined between an outer wall of the cooling vessel and an inner wall of the insulated vessel.
17 . The system of claim 16 , wherein the one or more gaps is an annular gap.
18 . The system of claim 16 , wherein the insulated vessel is vacuum insulated.
19 . The system of claim 16 , further comprising one or more gaskets or seals disposed between the outer wall of the cooling vessel and the inner wall of the insulated vessel, the one or more gaskets configured to allow venting of chilled gas via the one or more gaps.
20 . The system of claim 15 , wherein the one or more variable apertures are electrically operated or operated mechanically based on a pressure differential between an interior and an exterior of the chamber of the cooling vessel.
21 . The system of claim 20 , wherein the one or more variable apertures are electrically operated via circuitry in the lid of the cooling unit, the circuitry configured to control one or both of an amount the one or more variable apertures are opened and a duration of said opening of the one or more variable apertures to allow a controlled amount of chilled gas to exit the chamber of the cooling vessel.
22 . The system of claim 15 , wherein the cooling material is disposed between two payload volumes.