Portable cooler with powered cooling system
A portable cooler with a powered cooling system is disclosed. Preferred embodiments include wheels large and flexible enough for rolling over sand, grass, and other uneven surfaces, and handles for carrying and/or pulling. Pulling handles can include an extension that can be rigid or flexible and can be retractable. Power sources include rechargeable and/or exchangeable batteries, and/or a solar panel. Accessories in preferred embodiments include a power outlet for a cellular telephone, a power outlet for an iPod, a docking station for an iPod, an AC electrical outlet, a radio, a CD player, a tape player, an MP3 player, a television, audio headset outlets, and one or more audio speakers. In preferred embodiments, some or all of the power source, the cooling system, and the accessories are protected from water and/or sand. Some embodiments include a beverage holder, and in some of these embodiments the beverage holder is cooled.
The invention generally relates to portable coolers, and more specifically to means for cooling the interior of a portable cooler.
BACKGROUND OF THE INVENTIONWhen outdoor recreational activities continue for more than a short time, access to food and beverages is often desirable. This is especially true when the activities take place in warm weather and/or in bright sunlight. Examples include a day at the beach, a picnic in the park, and such like.
Sometimes it is not possible, or at least not convenient, to purchase desired food and/or beverages at a recreational location, and so it is often desirable to transport food and beverages to the recreational site from elsewhere. A thermally insulated “cooler” can be used to transport food and beverages, so as to protect them from warm weather, and ice or another frozen substance can be placed in the cooler so as to maintain the contents at a reduced temperature. However, this approach typically achieves only a limited reduction of temperature inside the cooler, and usually lasts only a few hours. When ice is used, there is also a tendency for water that results from melting of the ice to contaminate food and other contents of the cooler.
In addition to food and beverages, it is often desirable to have radios, tape players, cell phones, iPod's, TV's and/or other electronic devices available at a recreational site. This is often accomplished by transporting electronic devices to the recreational site that are portable and operate using battery power. However, battery lifetimes for such devices are limited, and may not be sufficient for the duration of a recreational experience, for example when the activity continues through the day and into the evening. This is especially true for portable equipment that is designed to provide music or other entertainment to groups of people, because such devices typically require significantly more electrical power than devices meant to serve only one person, and consequently they tend to have short battery lifetimes.
SUMMARY OF THE INVENTIONA portable cooler with a powered cooling system is disclosed. The cooler includes a thermally insulated container with an interior space, a portable power source cooperative with the thermally insulated container, and a portable, powered cooling system that is cooperative with the thermally insulated container and is able to remove heat from the interior space of the thermally insulated container.
Preferred embodiments include wheels that facilitate transportation of the portable cooler, and in some of these embodiments the wheels are sufficiently large and flexible to facilitate rolling of the cooler across sand, grass, and other uneven surfaces. Some preferred embodiments include a graspable carrying handle, and some of the embodiments that include wheels include a graspable pulling handle that facilitates pulling on the cooler so as to cause the cooler to roll in a desired direction. In some of these embodiments the graspable pulling handle includes an extension that facilitates pulling on the cooler by a standing individual, and in some of these embodiments the extension is flexible and/or retractable.
In preferred embodiments the power source and/or the cooling system is contained within a compartment that protects the contents against exposure to water and/or sand.
In preferred embodiments, the power source includes at least one battery, which in some embodiments is exchangeable and/or rechargeable. In some embodiments that include a rechargeable battery, the battery can be recharged from an automobile battery or an AC outlet. In preferred embodiments, the power source includes a solar panel, which in some embodiments is attached to an outward facing surface of the portable cooler
Preferred embodiments include one or more of the following accessories: a power outlet for a cellular telephone, a power outlet for an iPod, a docking station for an iPod, an AC electrical outlet, a radio, a CD player, a tape player, an MP3 player, a television, an outlet for an audio headset, and one or more audio speakers. In preferred embodiments, some or all of the accessories are protected from water and/or sand by covers.
In preferred embodiments, one or more beverage holders are also included that can support open beverage containers such as a beverage cup, a soft drink can, a beer can, a plastic beverage bottle, a glass beverage bottle, a wine bottle, a beer bottle, and other beverage containers. In some of these embodiments, at least a portion of each beverage holder is cooled so as to maintain a beverage in the holder at a reduced temperature.
Further preferred embodiments include a sensor and regulator that regulate the temperature in the interior of the thermally insulated container, and in some of these embodiments means are included for setting and/or displaying the temperature.
With reference to
In this embodiment, a nickel-metal hydride battery is used, similar or identical to batteries used in laptop computers and similar devices. The cooling system is a solid-state thermoelectric cooler with no moving parts that operates at 12 VDC and draws between 3 and 4 Amps. It has a cooling capacity of 15 to 20 Watts, or 50 to 70 BTU/hr.
Two rechargeable, sealed lead-acid batteries are used in the embodiment of
A front view of the embodiment of
Other modifications and implementations will occur to those skilled in the art without departing from the spirit and the scope of the invention as claimed. Accordingly, the above description is not intended to limit the invention except as indicated in the following claims.
Claims
1. A portable, powered cooler comprising:
- a thermally insulated container having an interior space;
- a portable power source cooperative with the thermally insulated container; and
- a portable, powered cooling system, cooperative with the portable power storage device, the portable, powered cooling system being capable of removing heat from the interior space of the thermally insulated container.
2. The portable, powered cooler of claim 1, further comprising wheels that facilitate transportation of the portable, powered cooler.
3. The portable, powered cooler of claim 2, wherein the wheels are sufficiently large and flexible to facilitate rolling of the cooler across sand, grass, and other uneven surfaces.
4. The portable, powered cooler of claim 2, further comprising a graspable pulling handle that facilitates pulling on the cooler so as to cause the cooler to roll in a desired direction.
5. The portable, powered cooler of claim 4, wherein the graspable pulling handle includes an extension that facilitates pulling on the cooler by a standing individual.
6. The portable, powered cooler of claim 5 wherein the extension is at least one of flexible and retractable.
7. The portable, powered cooler of claim 1, wherein at least one of the power source and the cooling system is protected against exposure to at least one of water and sand.
8. The portable, powered cooler of claim 1, wherein the power source includes at least one battery.
9. The portable, powered cooler of claim 8, wherein at least one battery is exchangeable.
10. The portable, powered cooler of claim 8, wherein at least one battery is rechargeable.
11. The portable, powered cooler of claim 8, wherein at least one battery can be recharged from at least one of an automobile battery, an AC electrical outlet, and a solar panel.
12. The portable, powered cooler of claim 1, wherein the power source includes a solar panel.
13. The portable, powered cooler of claim 8, wherein the solar panel is attached to an outward facing surface of the cooler.
14. The portable, powered cooler of claim 1, further comprising an accessory chosen from the following list:
- a power outlet for a cellular telephone;
- a power outlet for an iPod;
- a docking station for an iPod;
- an AC electrical outlet;
- a radio;
- a CD player;
- a tape player;
- an MP3 player;
- a television;
- an outlet for an audio headset; and
- at least one audio speaker.
15. The portable, powered cooler of claim 14, wherein the accessory is protected from exposure to at least one of water and sand.
16. The portable, powered cooler of claim 1, further comprising at least one beverage holder for supporting an open beverage container that is at least one of a beverage cup, a soft drink can, a beer can, a plastic beverage bottle, a glass beverage bottle, a wine bottle, a beer bottle, and other beverage containers.
17. The portable, powered cooler of claim 16, wherein a portion of at least one beverage holder is cooled so as to maintain a beverage in a container supported by the beverage holder at a reduced temperature.
18. The portable, powered cooler of claim 1, further comprising a temperature sensor and regulator that monitors and maintains the temperature in the interior space of the thermally insulated container.
19. The portable, powered cooler of claim 18, further comprising at least one of means for setting a desired temperature and means for displaying the measured temperature of the interior space of the thermally insulated container.
20. The portable, powered cooler of claim 1, further comprising a graspable carrying handle that facilitates carrying the portable, powered cooler.
Type: Application
Filed: Dec 22, 2007
Publication Date: Jun 25, 2009
Inventors: Stefan Cohrs (Greer, SC), Tammie Diane Cohrs (Greer, SC)
Application Number: 12/004,603
International Classification: F25B 21/00 (20060101);