PORTABLE INSTANT COOLING SYSTEM WITH CONTROLLED TEMPERATURE OBTAINED THROUGH TIMED-RELEASE LIQUID OR GASEOUS CO2 COOLANT FOR GENERAL REFRIGERATION USE IN MOBILE AND STATIONARY CONTAINERS
20180266734 ยท 2018-09-20
Assignee
Inventors
- Mark Holzwanger (Hewlett, NY, US)
- Xianghong Henry Liu (Ann Arbor, MI, US)
- Heng Hu (Plymouth, MN, US)
- Harry Holzwanger (Bayside, NY, US)
- Maria Grazia Verardi (Briarcliff Manor, NY, US)
- Robert A. Sailer (West Fargo, ND)
- Justin Hoey (Fargo, ND)
Cpc classification
F25D2400/36
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
H04L63/0428
ELECTRICITY
F25D23/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D29/006
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D17/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B19/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D3/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D2700/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D29/001
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G05D23/021
PHYSICS
F25B25/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D31/001
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D2700/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B9/008
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D29/008
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25C1/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B2500/17
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D2700/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D23/028
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B49/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
H04W4/80
ELECTRICITY
A61J1/165
HUMAN NECESSITIES
F25B41/20
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B43/003
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B60H1/3202
PERFORMING OPERATIONS; TRANSPORTING
F25D31/007
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D3/107
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D2600/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61J1/1468
HUMAN NECESSITIES
International classification
F25B19/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D29/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D31/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G05D23/02
PHYSICS
F25D17/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D23/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25C1/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25D23/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
Standalone and self-contained cooling systems using compressed liquid and/or gas CO.sub.2 containers positioned in an insulated or non-insulated vessel and consisting of a specially designed unit where the containers are vertically positioned in an upright or upside-down position.
The liquid and/or gas CO.sub.2 coolant is then released into capillary tube(s) embedded into a heat transfer plate or heat exchanger thus leveraging the CO.sub.2 coolant properties.
The temperature is controlled by a metering CO.sub.2 releasing system encompassing an electronic control device which can be operated remotely and/or via a touch screen and which sends alerts when pre-defined thresholds are exceeded.
The invention's metering CO.sub.2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid. The invention's cooling system also encompasses check valves, which avoid liquid and/or gas CO.sub.2 from escaping when removing or replacing CO.sub.2 containers individually.
Claims
1. A cooling system for containers which require cooling selected from the group consisting of reducing temperature to a cool temperature, maintaining a cool temperature, and a maintaining a frozen temperature, the cooling system comprising: a. a casing having an interior chamber for retaining a container with a top of the container being exposed; b. a cooling unit having a controlled system utilizing a cooling unit selected from the group consisting of a manual, electromechanical, electronic or thermostatic valve; c. at least one liquid or gas CO.sub.2 container; d. a capillary system embedded inside a heat transfer component, liquid or gas CO.sub.2 flows through capillaries in the heat transfer component to maintain the cooling system temperature, the capillary system having a series of filters to prevent capillary tube(s) in the capillaries from becoming clogged and providing a steady and constant flow of liquid or gas CO.sub.2 through the capillary tube(s) to maintain a desired temperature; e. the heat transfer component located at a bottom of the casing enclosing and surrounding the container, the heat transfer component adjacent a bottom of the container, the heat transfer component including a manifold block and a connection joining the CO.sub.2 container; and f. at least one control valve which is placed on the upper surface of the heat transfer component between the CO.sub.2 container and the manifold block.
2. The system as described in claim 1, further comprising: a. at least one compressed liquid and/or gas CO.sub.2 container; b. a CO.sub.2 refrigerant retained within an interior chamber surrounded by a circumferential sidewall and top of each of said at least one compressed liquid and/or gas CO.sub.2 container c. a heat transfer component having at least an upper surface; d. a manifold block affixed to said upper surface of said heat transfer component, the manifold block having a body adjacent to an end of the heat transfer component with the manifold block having second mating threads; e. said at least one compressed liquid and/or gas CO.sub.2 container having a member in fluid communication with said interior chamber of said at least one compressed liquid and/or gas CO.sub.2 container, the member having a circumferential sidewall with first connection threads, the compressed liquid and/or gas CO.sub.2 container placed in an inverted condition with first connection threads engaged with and threaded onto second connection threads so that the at least one compressed liquid and or gas CO.sub.2 container is retained in an inverted condition in the at least one opening of the manifold block; f. at least one check valve between the manifold block and the retained at least one compressed liquid and/or gas CO.sub.2 container, the at least one check valve connected to at least one releasing valve releasing compressed liquid and/or gas CO.sub.2 to one or more capillary tubes, embedded in the heat transfer component; and g. at least one release valve as part of a metering CO.sub.2 control releasing system, which is controlled or actuated selected from the group consisting of manually, electromechanically, electronically or thermostatically, to release liquid and/or gas CO.sub.2 from at least one compressed liquid and/or gas CO.sub.2 container into the system, the at least one releasing valve metering and controlling the release of compressed liquid and/or gas CO.sub.2 from the at least one compressed liquid and/or gas CO.sub.2 container.
3. The system as described in claim 2, further comprising: a. the manifold block with at least one opening having the second mating threads on a surface where the first mating threads of the at least one compressed liquid and/or gas CO.sub.2 container is screwed into; b. said manifold block having an internal cavity where the compressed liquid and/or gas CO.sub.2 is conveyed once released; and c. said internal cavity is in connection with the at least one capillary tube embedded into the heat transfer component.
4. The system as described in claim 2, further comprising: a. the heat transfer component is utilized, the heat transfer component made of any material, the heat transfer component having the capability of transferring heat through its surface and containing embedded capillary tube(s) where the compressed liquid and/or gas CO.sub.2 is released by the releasing valve (either electronic or thermostatic or manual or electromechanical) into the capillary tube(s); and b. the controlled reduction and steady maintenance of temperature along the heat transfer component allows items to be maintained refrigerated, cooled or frozen.
5. The system as described in claim 2, further comprising: a. one or more capillary tube(s) with various widths and lengths are embedded in the heat transfer component or wrapped around a cooling chamber designed to refrigerate, cool or freeze an item to be cooled including cans, bottles or other small items in need of refrigeration, cooling or freezing; b. various widths and lengths of the capillary tube(s) allow an operator to manually regulate, change or control the flow of compressed liquid and/or gas CO.sub.2 thus acting on the temperature setting and on the quantity of compressed liquid and/or gas CO.sub.2 to be released for a more efficient utilization of the heat transfer component; and c. the capillary tube(s) convey the compressed liquid and/or gas CO.sub.2 along the heat transfer component, tubes having filters to avoid any freezing, clogging or blocking of the compressed liquid and/or gas CO.sub.2 flow, the capillary tubes(s) convey the compressed liquid and/or gas CO.sub.2 to be safely released from the compressed liquid and/or gas CO.sub.2 container(s) in the heat transfer component, thereby avoiding the compressed liquid and/or gas CO.sub.2 to be directly spilled on the items in need of refrigeration.
6. The system as described in claim 2, further comprising: at least a member functioning as a manual valve control for the purpose of opening and releasing compressed liquid and/or gas CO.sub.2 into the capillary tube(s) embedded in the heat transfer component when deemed necessary by a user
7. The system as described in claim 2, further comprising: a. an electronic control device including a transmittal member to transmit encrypted commands to said electronic control device and when a desired cooling temperature is determined, the electronic control device opens the control valve, and compressed liquid and/or gas CO.sub.2 are dispensed through the at least one dispensing valve through the capillary tube(s) embedded in the heat transfer component with the heat transfer component providing the cooling temperature to a selected location; and b. at least an electronic CO.sub.2 member functioning as an electronic valve control for the purpose of evaluating the temperature of a cooler and its surroundings and electrically open and release compressed liquid and/or gas CO.sub.2 into the capillary tube(s) embedded in the heat transfer component until a set threshold temperature inside the cooler is achieved for a desired period(s) and length(s) of time.
8. The system as described in claim 2, further comprising: a. an electronic control device including a transmittal member to transmit encrypted commands to said electronic control device, and when a desired cooling temperature is determined, the electronic control member opens the control valve, and compressed liquid and/or gas CO.sub.2 are dispensed through the at least one dispensing valve through the capillary tube(s) embedded in the heat transfer component with the heat transfer component providing the cooling temperature to a selected location; b. at least one electronic solenoid member included into the manifold block and functioning as a valve controller for the purpose of controlling the flow of liquid and/or gas CO.sub.2 into the capillary embedded in the heat exchanger component when deemed necessary by the user; and c. the solenoid CO.sub.2 valve control remains activated for various times to control the flow of compressed liquid and/or gas CO.sub.2 depending on a desired temperature and/or a desired period(s) and length(s) of time required or needed.
9.The system as described in claim 2, further comprising: a. at least a thermostatic CO.sub.2 member functioning as a valve controlling the temperature from 78 C. to ambient external temperature; b. the thermostatic CO.sub.2 member is a polymeric/wax-based thermostatic valve which operates by exploiting the thermal expansion of a mixture of polymer/wax components; c. as the polymer/wax mixture begins to melt, the material expands and opens the valve; d. as the system begins to cool, the material contracts and solidifies which allows the valve to close; e. the temperature at which the polymer/wax begins to melt is dependent on its formulation and is selected based on its desired operating temperatures; and f. when the desired operating temperature are reached, the wax-based thermostatic valve closes for a period of time until an operating temperature exceeds-a desired operating; temperature, then the wax-based thermostatic valve opens.
10. The system as described in claim 2, further comprising: a. at least one check valve placed between the compressed liquid and/or gas CO.sub.2 container's manifold block and the manifold block joining two or more compressed liquid and/or gas CO.sub.2 containers; b. said at least one check valve avoids compressed liquid and/or gas CO.sub.2 from escaping when removing or replacing CO.sub.2 containers individually; and c. the at least one check valve enables efficient utilization of one or more CO.sub.2 containers.
11. The system as described in claim 7, further comprising: the electronic control device including: a. a display where the following temperatures are visualized: i) external to the cooler; ii) internal into the cooler; and iii) at the upper surface of the heat transfer component; b an electronic board for checking the current temperatures and sending the desired temperatures to the electronic valve; c. a wired electronic connection to the cooler; d. a USB port; e. a power supply component; f. a Bluetooth component; g. a WiFi component; h. a radio frequency component; and i. a case-box containing at least one of the electronic board and connection to the cooler, the USB port, the power supply component, a Bluetooth component, a WiFi component, and a Radio Frequency component, collectively defined as one or more of the electronic components, with an input and an output having a display on a surface of the cooler.
12. The system as described in claim 11 further comprising: the electronic control device is powered by a battery.
13. The system as described in claim 12 further comprising: the battery is chargeable via a USB port.
14. The system as described in claim 12 further comprising: the battery is chargeable via a 12V DC automotive connection.
15. The system as described in claim 12 further comprising: the battery is chargeable via a 120V AC connection.
16. The system as described in claim 12 further comprising: the battery is powered via a solar panel.
17. The system as described in claim 11 further comprising: the encrypted commands are transmitted from an electronic control device in the cooler through Wi-Fi/Bluetooth/Radio Frequencies to a smartphone or tablet or a server encrypted to avoid spoofing, intrusion, interference, meaconing, jamming or data falsification.
18. The system as described in claim 11 further comprising: the desired temperature and its length of time are remotely controllable.
19. The system as described in claim 11 further comprising: alerts are communicated using Bluetooth or Wi-Fi technologies to a mobile phone or email account, or sound, buzzer or vibration for notifying an operator of the system for: a. temperature of items, at the top and at the bottom of cooler as well as the ambient temperature outside the cooler equipped with the system out of acceptable limits for determined acceptable periods and lengths of time; b. liquid and/or gas CO.sub.2 level low; c. battery level low; and d. atmospheric pressure.
20. The system as described in claim 2, further comprising: the at least one compressed liquid and/or gas CO.sub.2 container positioned in an upright position.
21. The system as described in claim 2, further comprising: the at least one compressed liquid and/or CO.sub.2 container positioned in an upside-down position.
22. The system as described in claim 2 further comprising: the system is integrated into a vehicle for delivery of an item or for storage of an item.
23. The system as described in claim 22 further comprising: said vehicle is selected from the group consisting of a transportation vehicle and a recreational vehicle.
24. The system as described in claim 22 further comprising: said item is selected from the group consisting of beverage, food, medicine, and matter needed to be refrigerated.
25. The system as described in claim 2 further comprising: a. the system is designed for a container for personal medical storage including insulin; b. the system further comprises an insulated plastic, composite or metal container with either traditional or vacuum insulation; and c. the container and control mechanism of the system contained inside the container.
26. The system as described in claim 2 further comprising: the system is designed for critical refrigeration of medical materials including vaccines and drugs.
27. The system as described in claim 2 further comprising: the system is designed to receive food, beverages, medical supplies, blood, temperature sensitive chemicals and pharmaceuticals, any prey resulting from fishing or hunting activities or any other perishable items in need of refrigeration, cooling or freezing deliveries when the owner, renter or resident of a residential dwelling (i.e.: houses, apartments, dormitories or town-houses) is not present.
28. The system as described in claim 2, further comprising: the at least one compressed liquid and/or gas CO2 container is selected from the group consisting of: a. disposable metal canister; b. 12, 16, 20, 24, 32 oz metal or composite cylinder; c. 1, 2.5, 5, 10, 20 lb portable compressed gas cylinders; d. >20 lb semiportable/bulk compressed gas cylinders; e. large volume liquid containers; and f. a specially designed compressed liquid container specific for the invention's cooling system and a custom manifold block where the CO.sub.2 container(s) can be screwed into or connected to form a seal between the CO.sub.2 container(s) and the manifold block that prevents the liquid and the gas CO.sub.2 from escaping and prevents the leakage of the liquid or the gas CO.sub.2.
29. The system as described in claim 11, the electronic control device further comprising: the system is integrated with wireless or hard wire transmission technology selected from the group consisting of: a. bluetooth connection to a phone or computer, or tablet; b. Wi-Fi for connection to a phone, tablet, or computer; c. radio frequency; and d. hard wire transmission utilizing a hard wire connection for areas where there is high environmental interference of the wireless transmission.
30. The system as described in claim 29 further comprising: the data transmitted from the active control device of the system via Wi-Fi/Bluetooth/radio frequencies to a smartphone or tablet or a server encrypted to avoid spoofing, intrusion, interference, meaconing, jamming or data falsification.
31. The system as described in claim 29 further comprising: the desired temperature and its length of time are remotely controllable.
32. The system as described in claim 29 further comprising: alerts are communicated using Bluetooth or Wi-Fi technologies to a mobile phone or email account, or sound, buzzer or vibration for notifying the operator of the invention's cooling system for: a. temperature of items, at the top and at the bottom of the vessels as well as the ambient temperature outside the vessel equipped with the invention's cooling system out of acceptable limits for determined acceptable periods and lengths of time; b. liquid and/or gas CO.sub.2 level low; c. battery level low; and d. atmospheric pressure.
33. The system as described in claim 8, further comprising: the electronic control device including: a. a display where the following temperatures are visualized: i) external to the cooler; ii) internal into the cooler; and iii) at the upper surface of the heat exchanger; b. electronic board for checking the current temperatures; c. a wired electronic connection to the cooling system; d. a USB port; e. a power supply component; f. a Bluetooth component; g. a WiFi component; h. a radio frequency component; and i. a case-box containing the electronic components with input and output connectors and having the display in one of its surface.
34. The system as described in claim 33 further comprising: the electronic control device is powered by a battery.
35. The system as described in claim 34 further comprising: the battery is chargeable via a USB port.
36. The system as described in claim 34 further comprising: the battery is chargeable via a 12V DC automotive connection.
37. The system as described in claim 34 further comprising: the battery is chargeable via a 120V AC connection.
38. The system as described in claim 34 further comprising: the battery is powered via a solar panel.
39. The system as described in claim 34 further comprising: the data transmitted from the active control device of the system via Wi-Fi/Bluetooth/Radio Frequencies to a smartphone or tablet or a server is encrypted to avoid spoofing, intrusion, interference, meaconing, jamming or data falsification.
40. The system as described in claim 34 further comprising: desired temperature and its length of time are remotely controllable.
41. The system as described in claim 34 further comprising: alerts are communicated using Bluetooth or Wi-Fi technologies to a mobile phone or email account, or sound, buzzer or vibration for notifying the operator of the invention's cooling system for: a. temperature of items, at the top and at the bottom of the vessels as well as the ambient temperature outside the vessel equipped with the invention's cooling system out of acceptable limits for determined acceptable periods and lengths of time; b. liquid and/or gas CO.sub.2 level low; c. battery level low; and d. atmospheric pressure.
42. The system as described in claim 34 further comprising, the electronic control device further comprising: the system is integrated with wireless or hard wire transmission technology selected from the group consisting of: a. bluetooth connection to a phone or computer or tablet; b. Wi-Fi for connection to a phone, tablet or computer; c. radio frequency, and d. hard wire transmission utilizing a hard wire connection for areas where there is high environmental interference of the wireless transmission.
43. The system as described in claim 34 further comprising: the data transmitted from the active control device of the system via Wi-Fi/Bluetooth/radio frequencies to a smartphone or tablet or a server or any kind of other device is encrypted to avoid spoofing, intrusion, interference, meaconing, jamming or data falsification.
44. The system as described in claim 43 further comprising: desired temperature and its length of time are remotely controllable.
45. The system as described in claim 43 further comprising: alerts are communicated using Bluetooth or Wi-Fi technologies to a mobile phone or email account, or sound, buzzer or vibration for notifying the operator of the invention's cooling system for: a. temperature of items, at the top and at the bottom of the vessels as well as the ambient temperature outside the vessel equipped with the invention's cooling system out of acceptable limits for determined acceptable periods and lengths of time; b. liquid and/or gas CO.sub.2 level low; c. battery level low; and d. atmospheric pressure.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0065] Referring particularly to the drawings for the purpose of illustration only and not limitation, there is illustrated:
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DETAILED DESCRIPTION OF EMBODIMENTS OF THE PRESENT INVENTION
[0114] Although specific embodiments of the present invention will now be described with reference to the drawings, it should be understood that such embodiments are by way of example only and merely illustrative of but a small number of the many possible specific embodiments which can represent applications of the principles of the present invention. Various changes and modifications obvious to one skilled in the art to which the present invention pertains are deemed to be within the spirit, scope and contemplation of the present invention as further defined in the appended claims.
[0115] Defined broadly, the present invention is an apparatus and method for maintaining items such as beverages, food and other items in need of refrigeration in a cool, cold or freezing temperature to preserve the items for an extended period of time, as required by the item.
[0116] Referring to
[0117] Referring to
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[0119] Referring to
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[0123] Then there are the output systems. These consist of the Display 561, the Valve (through the Step Up Converter) 540, the Bluetooth Radio 564, and the Indicator Lights 566. The Display 561 is responsible for outputting all information to the user, except what is provided by the indicator lights 566; however, there may be redundancy between the information conveyed. The Valve controls the flow of CO.sub.2 in the system and thus, regulates temperature. The Bluetooth Radio 564 provides a means of communication between the companion app and also functions as an input. The Indicator Lights 566 are responsible for making available the most important information to the user.
[0124] Related to the output systems are the input systems. These include the Touch Screen 562, the Digital Temperature Sensors 565, and the Bluetooth Radio 564. The Touch Screen 562 provides all input to the device save for what is provided by the companion app, there may be overlap between the two. The Digital Temperature Sensors 565 are responsible for sensing the temperature, they are digital to provide a greater degree of accuracy and precision. The Bluetooth Radio 564 functions as a means of communication between the companion app and the Frostime unit. It also functions as an output.
[0125] In addition to those systems mentioned above, the electronic control device also has two systems required for full operation. These are the Storage system 567 and the Step Up Converter 563. The Storage system 567 stores all data collected by the electronic control device so that it may be retrieved later, it may be thought of as an input and output for the MCU 568 but is not intended to be directly accessed by the user. The Step Up Converter 563 is required to couple the MCU 568 and the Valve systems 540 together due to their electrical differences.
[0126]
[0127] After all sensors and hardware has been initialized, the temperature is displayed 5004 to the display and the control unit software enters its primary operating routine 5005. This routine conditionally executes subroutines based on measurements performed and preset timers. It is responsible for changing the valve from open to close to regulate temperature based on data from the temperature sensors, as well as detecting and handling input from the touchscreen and displaying data to it.
[0128] The first condition checked 5006 is whether or not the displayed temperature has been updated in the last 15 seconds. If it has not been, the temperature on the display is updated 5007 and also saved to a log file 5008. Next, regardless of the previous condition, the control electronic software checks if the touch screen has been pressed 5009. If this is true, it checks specifically if the valve button was pressed 5011. If so, Auto mode is disabled 5012 and the position of the valve is toggled from its current state to the opposite one (open to close 5013A, close to open 5013B).
[0129] If the valve button was not pressed 5014, but there was still a touchscreen touch detected 5009, the Auto Mode is enabled 5015. In this mode the device will open and close the valve to maintain the set temperature, further description of this mode can be gained in the additional description of the main routine below.
[0130] If none of the above touch screen events have occurred, but there was still a touch, the control software then checks if the touch was in the sliding temperature adjustment interface 5016. If it was, the graphic slider is adjusted to represent the set temperature 5017 and the new set point is displayed 5018. It does so by changing its rightmost endpoint to the point of touch.
[0131] If neither the valve, the auto mode, nor the slider were touched, the control software of the invention's cooling system performs one last check 5019 to see if its units' button has been touched. If so the units are toggled from Fahrenheit to Celsius or Celsius to Fahrenheit depending on the initial units at the time of the press 5020. Finally, in the event of a touch, after all buttons are checked, the internal touch registers containing information about where the touch took place are reset in order to be ready for the next touch event 5021.
[0132] After checking the touch screen for input 5009, the control software of the invention's cooling system checks if auto mode is enabled 5010, if so it echoes the valve's current state 5022 to the display via a green light to represent an On valve 5023A and a red light to indicate and Off valve 5023B.
[0133] Then Bluetooth Connectivity is checked 5024. If it is connected, then the temperature of the valve is sent to the app 5025 as well as the temperature the device is set to maintain 5026.
[0134] Next, the device checks the temperature. If this temperature is above the set point selected by the user plus a small preset deadband value 5027 to reduce unnecessary cycling of the valve, the valve is opened 5028. Next, the device checks if the temperature is below the set point minus a small preset deadband value 5029. If this is the case, the device's valve is set to the off, closed position 5030.
[0135] Finally, the device performs another check 5031 for any received Bluetooth commands. If one command was received, it is executed 5032.
[0136] This concludes the primary operating routine; it is repeated 5033 until the power switch is switched to the Off position.
[0137] Referring to
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[0142] When normally closed, a plunger return spring 737 holds the plunger 733 against the orifice of the CO.sub.2 canister, preventing flow through the valve. When the solenoid is energized, a magnetic field is produced, actuating the lever and in turn raising the plunger and allowing flow through the valve.
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[0145] Multiple solenoid valves can be placed together on a manifold thus reproducing configuration with three CO.sub.2 canisters upside-down.
[0146] A more common embodiment for the present invention is to use a multiplicity of inverted CO.sub.2 cylinders. By way of example, one preferred embodiment is to have three CO.sub.2 cylinders. Referring to
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[0170] Of course the present invention is not intended to be restricted to any particular form or arrangement, or any specific embodiment, or any specific use, disclosed herein, since the same may be modified in various particulars or relations without departing from the spirit or scope of the claimed invention hereinabove shown and described of which the apparatus or method shown is intended only for illustration and disclosure of an operative embodiment and not to show all of the various forms or modifications in which this invention might be embodied or operated.