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US20240263865A1 - Refrigerated container having a thermo-electric cooler pump - Google Patents

Refrigerated container having a thermo-electric cooler pump Download PDF

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Publication number
US20240263865A1
US20240263865A1 US18/436,839 US202418436839A US2024263865A1 US 20240263865 A1 US20240263865 A1 US 20240263865A1 US 202418436839 A US202418436839 A US 202418436839A US 2024263865 A1 US2024263865 A1 US 2024263865A1
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US
United States
Prior art keywords
heat exchanger
side heat
chamber
lid
thermo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/436,839
Inventor
Greg Reel
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US18/436,839 priority Critical patent/US20240263865A1/en
Publication of US20240263865A1 publication Critical patent/US20240263865A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003—Transport containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans

Definitions

  • the invention is in the field of refrigeration and is more specifically directed to an apparatus directed to, and a system and method for operating, a thermo-electric cooler pump.
  • thermo-electric coolers can solve these issues.
  • effective portable refrigerators need effective components that are sufficiently robust to withstand the rigors of transportation. Accordingly, improvements to thermo-electric cooler design and use are desired.
  • FIG. 1 is a graphical representation of a refrigerated container having a thermo-electric cooler pump according to the invention.
  • a refrigerated container having a thermo-electric cooler pump referred to generally at 10 in FIG. 1 , includes a container body 12 , having a bottom wall 14 and side walls 16 , for storage of medicines or other products P that need to be refrigerated, and a lid 18 for covering the container body 12 .
  • the container walls 14 , 16 are lined with or may consist of insulation 20 and may have a durable inner liner 22 such as may be made from steel or aluminum. In one embodiment, the walls are provided with double insulation.
  • the lid 18 has an insulated base 24 that fits snugly over the top opening of the container body 12 to form a tight and well-insulated chamber 26 .
  • a first fan 28 mounted on the underside of the base 24 draws warmed air A W from the chamber 26 through an inlet port 30 and circulates it through a cooling channel 32 , also located on the underside of the base 24 , whence it returns back into the chamber as cooled air A C via an outlet port 34 .
  • a one-way valve 36 may be provided in the cooling channel 32 to ensure circulation of the air in one direction only.
  • thermo-electric element 38 such as one including a Peltier device, is mounted in the base 24 of the lid 18 .
  • the thermo-electric element 38 comprises a cold-side heat exchanger 40 , a hot-side heat exchanger 42 , and an electrically conductive element 44 bounded by electrically non-conductive ceramic plates 44 P therebetween.
  • the thermo-electric element 38 is mounted so that the cold-side heat exchanger 42 extends below the underside of the base 24 into the channel 32 on the bottom side of the base 24 of the lid 18 .
  • the hot-side heat exchanger 42 extends above the base 24 into an exhaust channel 46 located in the lid 18 .
  • a second fan 48 disposed in the lid 18 above the top side 49 of the base 24 draws ambient air A A into the channel 46 across the hot side heat exchanger 42 and expels it as warmed air A O from the exhaust port 50 .
  • air A W is circulated through cooling channel 32
  • heat from heated air A W is transferred from the cold-side heat exchanger 40 to the hot-side heat exchanger 42 which helps to maintain a selected cold temperature in the product chamber 26 .
  • Circulation of ambient A A through the exhaust channel and across the hot-side heat exchanger 42 moves heat air out of the container 12 .
  • the thermo-electric cooler pump thus removes heat from the chamber as needed.
  • first fan 28 is disposed inside the insulated chamber 36
  • the motor for driving the fan is located outside the chamber to reduce generation of heat from operation of the motor in the chamber.
  • a battery 52 provides electrical power to the thermo-electric element component 14 .
  • the batteries are rechargeable.
  • a power connector 54 may be provided to access an external power source.
  • a sensor 56 is connected to a controller 58 located in lid 18 and receives temperature data from the sensor 56 . If the temperature exceeds a selected threshold, the controller 58 activates the first fan 28 to begin circulating warmed air A W through cooling channel 32 and activates the second fan 34 to move warmed air A H out of the lid through the exhaust channel.
  • the lid 18 is glued over the top opening of the container body 12 and anchors are inserted through the lid into each corner of the container to secure the lid in place during transportation.
  • a locator may be incorporated to track location. Data logging capabilities may also be added to provide a record of temperature, humidity, open/close status of the lid, vibration, etc.
  • thermo-electric heat element 14 is integrated into the sides or bottom of an insulated container.
  • the controller 54 may be connected to a display for showing measurements of various environmental conditions such as time, temperature, battery status, open/closed lid status, alarm conditions (e.g., high temperature), deviations from set boundaries for temperature, humidity, vibration and operational errors.
  • an additional fan is located in the chamber 26 to ensure that the entire chamber is isotropic.
  • thermo-electric cooler pump devices may be integrated into the container to track its location and record environmental conditions for later display, such as temperature, humidity, and vibration.
  • thermo-electric cooler pump there have thus been described and illustrated certain embodiments of a refrigerated container having a thermo-electric cooler pump according to the invention.
  • the present invention has been described and illustrated in detail, it should be clearly understood that the disclosure is illustrative only and is not to be taken as limiting, the spirit and scope of the invention being limited only by the terms of the appended claims and their legal equivalents.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

A refrigerated container having a thermo-electric cooling pump includes a lid for covering the top opening of a container to form a chamber, the lid having a thermo-electric element that includes a cold-side heat exchanger and a hot-side heat exchanger, the cold-side heat exchanger extending into a sealed cooling channel on the underside of the lid, the hot-side heat exchanger extending into an exhaust channel on the top-side of the lid, first and second fans for moving gases through the circulation and exhaust channels, a sensor disposed in the container, and a controller which activates the first and second fans when a temperature in the chamber is detected above a threshold, such that heat from warmed air in the chamber is transferred from the cold-side heat exchanger to the hot-side heat exchanger and expelled out of the exhaust from the container.

Description

    BACKGROUND Technical Field
  • The invention is in the field of refrigeration and is more specifically directed to an apparatus directed to, and a system and method for operating, a thermo-electric cooler pump.
    • Description of Related Art
  • Medicines and other products can degrade in certain conditions. For example, some temperatures need to be maintained in specified temperature ranges. Patients may not be able to constantly track medicine temperature. The same can be true for some testing instruments such as blood testing strips. Portable refrigerators can solve these issues. However, effective portable refrigerators need effective components that are sufficiently robust to withstand the rigors of transportation. Accordingly, improvements to thermo-electric cooler design and use are desired.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a graphical representation of a refrigerated container having a thermo-electric cooler pump according to the invention.
    •  DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT
  • A refrigerated container having a thermo-electric cooler pump, referred to generally at 10 in FIG. 1 , includes a container body 12, having a bottom wall 14 and side walls 16, for storage of medicines or other products P that need to be refrigerated, and a lid 18 for covering the container body 12. The container walls 14, 16 are lined with or may consist of insulation 20 and may have a durable inner liner 22 such as may be made from steel or aluminum. In one embodiment, the walls are provided with double insulation. The lid 18 has an insulated base 24 that fits snugly over the top opening of the container body 12 to form a tight and well-insulated chamber 26.
  • A first fan 28 mounted on the underside of the base 24 draws warmed air AW from the chamber 26 through an inlet port 30 and circulates it through a cooling channel 32, also located on the underside of the base 24, whence it returns back into the chamber as cooled air AC via an outlet port 34. A one-way valve 36 may be provided in the cooling channel 32 to ensure circulation of the air in one direction only.
  • A thermo-electric element 38, such as one including a Peltier device, is mounted in the base 24 of the lid 18. The thermo-electric element 38 comprises a cold-side heat exchanger 40, a hot-side heat exchanger 42, and an electrically conductive element 44 bounded by electrically non-conductive ceramic plates 44 P therebetween. The thermo-electric element 38 is mounted so that the cold-side heat exchanger 42 extends below the underside of the base 24 into the channel 32 on the bottom side of the base 24 of the lid 18. The hot-side heat exchanger 42 extends above the base 24 into an exhaust channel 46 located in the lid 18.
  • A second fan 48 disposed in the lid 18 above the top side 49 of the base 24 draws ambient air AA into the channel 46 across the hot side heat exchanger 42 and expels it as warmed air AO from the exhaust port 50. Thus, as shown, as air AW is circulated through cooling channel 32, heat from heated air AW is transferred from the cold-side heat exchanger 40 to the hot-side heat exchanger 42 which helps to maintain a selected cold temperature in the product chamber 26. Circulation of ambient AA through the exhaust channel and across the hot-side heat exchanger 42 moves heat air out of the container 12. The thermo-electric cooler pump thus removes heat from the chamber as needed.
  • While in the illustrated embodiment, first fan 28 is disposed inside the insulated chamber 36, in another embodiment the motor for driving the fan is located outside the chamber to reduce generation of heat from operation of the motor in the chamber.
  • A battery 52 provides electrical power to the thermo-electric element component 14. In one embodiment the batteries are rechargeable. A power connector 54 may be provided to access an external power source. A sensor 56 is connected to a controller 58 located in lid 18 and receives temperature data from the sensor 56. If the temperature exceeds a selected threshold, the controller 58 activates the first fan 28 to begin circulating warmed air AW through cooling channel 32 and activates the second fan 34 to move warmed air AH out of the lid through the exhaust channel.
  • In one embodiment of a thermo-electric cooler pump, the lid 18 is glued over the top opening of the container body 12 and anchors are inserted through the lid into each corner of the container to secure the lid in place during transportation.
  • In another embodiment of a refrigerated container having a thermo-electric cooler pump a locator may be incorporated to track location. Data logging capabilities may also be added to provide a record of temperature, humidity, open/close status of the lid, vibration, etc.
  • In other embodiments of a refrigerated container having a thermo-electric cooler pump, the thermo-electric heat element 14, is integrated into the sides or bottom of an insulated container. In another embodiment the controller 54 may be connected to a display for showing measurements of various environmental conditions such as time, temperature, battery status, open/closed lid status, alarm conditions (e.g., high temperature), deviations from set boundaries for temperature, humidity, vibration and operational errors.
  • In yet another embodiment of a refrigerated container having a thermo-electric cooler pump, an additional fan is located in the chamber 26 to ensure that the entire chamber is isotropic.
  • In still other embodiments of a refrigerated container having a thermo-electric cooler pump, devices may be integrated into the container to track its location and record environmental conditions for later display, such as temperature, humidity, and vibration.
  • There have thus been described and illustrated certain embodiments of a refrigerated container having a thermo-electric cooler pump according to the invention. Although the present invention has been described and illustrated in detail, it should be clearly understood that the disclosure is illustrative only and is not to be taken as limiting, the spirit and scope of the invention being limited only by the terms of the appended claims and their legal equivalents.

Claims (5)

What is claimed is:
1. A refrigerated container having a thermo-electric cooler pump, the refrigerated container comprising:
a container body having insulated side and bottom walls defining an insulated chamber, the side walls defining a top opening,
a lid sized to fit over the top opening of the container body for closing the chamber, the lid having an insulated base, a cooling channel, an exhaust channel, a thermo-electric element, one or more fans, the insulated base having an underside and a top side,
the cooling channel formed on the underside of the base and having an inlet port and an outlet port, a first one of the one or more fans disposed at the inlet port for driving air pulled from the chamber into the cooling channel,
the exhaust channel disposed on or above the top side of the insulated base, the exhaust channel having an exhaust port for expelling air from the lid,
the thermo-electric element having a cold-side heat exchanger, a hot-side heat exchanger and an electrically conductive element therebetween, electric current passing through the electrically conductive element causing a temperature differential between the cold-side heat exchanger and the hot-side heat exchanger, the cold-side heat exchanger extending into the cooling channel on the underside of the base of the lid, the hot-side heat exchanger extending into the exhaust channel on the top side of the base of the lid, wherein passage of electric current through the electrically conductive element activates the thermo-electric element thereby causing heat to flow from the cold-side heat exchanger to the hot-side heat exchanger,
a power source connected to the thermo-electric element,
a controller connected to the power source,
a sensor in communication with the controller for detecting temperature in the chamber,
such that when the sensor detects a temperature in the chamber over a selected threshold the controller is configured to activate the first fan to circulate air drawn from the chamber through the circulation channel across the cold-side heat exchanger and to activate the thermo-electric element, thereby transferring heat from the chamber across the insulated base of the lid into the exhaust channel.
2. The refrigerated container of claim 1 further comprising:
a second fan disposed above the top side of the insulated base for driving ambient air into the exhaust channel, and
when the sensor detects a temperature in the chamber over a selected threshold the controller being configured to activate the second fan to drive air through the exhaust channel across the hot-side heat exchanger and out of the lid through the exhaust port.
3. The refrigerated container of claim 1 further comprising:
one-way valve disposed in the outlet port of the cooling channel restricting air in the channel to only flow from the inlet port to the outlet port.
4. The refrigerated container of claim 1 wherein the chamber is sized to hold medical drug containers or bio-tissue samples.
5. A refrigerated container having a thermo-electric cooler pump, the refrigerated container comprising:
a container body having insulated side and bottom walls defining an insulated chamber, the side walls defining a top opening,
a lid sized to fit over the top opening of the container body for closing the chamber, the lid having an insulated base, a cooling channel, an exhaust channel, a thermo-electric element, two or more fans, the insulated base having an underside and a top side,
the cooling channel formed on the underside of the base and having an inlet port and an outlet port, a first fan of the two or more fans disposed at the inlet port for driving air pulled from the chamber into the cooling channel,
the exhaust channel disposed on or above the top side of the insulated base, the exhaust channel having an exhaust port for expelling air from the lid, a second fan of the two or more fans disposed above the top side of the insulated base for driving ambient air into the exhaust channel,
the thermo-electric element having a cold-side heat exchanger, a hot-side heat exchanger and an electrically conductive element therebetween, electric current passing through the electrically conductive element causing a temperature differential between the cold-side heat exchanger and the hot-side heat exchanger, the cold-side heat exchanger extending into the cooling channel on the underside of the base of the lid, the hot-side heat exchanger extending into the exhaust channel on the top side of the base of the lid, wherein passage of electric current through the electrically conductive element activates the thermo-electric element thereby causing heat to flow from the cold-side heat exchanger to the hot-side heat exchanger,
a power source connected to the thermo-electric element,
a controller connected to the power source,
a sensor in communication with the controller for detecting temperature in the chamber,
such that when the sensor detects a temperature in the chamber over a selected threshold the controller is configured to activate the first fan to circulate air drawn from the chamber through the circulation channel across the cold-side heat exchanger, to activate the thermo-electric element to transfer heat from the chamber across the insulated base of the lid into the exhaust channel, and to activate the second fan to drive air through the exhaust channel across the hot-side heat exchanger and out of the lid through the exhaust port.
US18/436,839 2023-02-08 2024-02-08 Refrigerated container having a thermo-electric cooler pump Pending US20240263865A1 (en)

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US202363444218P 2023-02-08 2023-02-08
US18/436,839 US20240263865A1 (en) 2023-02-08 2024-02-08 Refrigerated container having a thermo-electric cooler pump

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726193A (en) * 1987-02-13 1988-02-23 Burke Edward J Temperature controlled picnic box
JP2553022Y2 (en) * 1993-12-28 1997-11-05 ツインバード工業株式会社 Cold storage
KR20000014340A (en) * 1998-08-20 2000-03-06 곽춘근 Kimchi refrigerator
KR200353322Y1 (en) * 2004-03-18 2004-06-14 엄준식 Cooling and heating cabinet used solar battery
CN207350602U (en) * 2017-05-02 2018-05-11 惠州市杰德电器有限公司 A kind of novel kitchen refrigeration system
WO2021186441A1 (en) * 2020-03-19 2021-09-23 Steiner Isaac Respirator device and method
WO2021242816A1 (en) * 2020-05-27 2021-12-02 Igloo Products Corp. Modular thermoelectric apparatus for use in multiple portable containers

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726193A (en) * 1987-02-13 1988-02-23 Burke Edward J Temperature controlled picnic box
US4726193B1 (en) * 1987-02-13 1996-07-02 Marlow Ind Inc Temperature controlled picnic box
US4726193C2 (en) * 1987-02-13 2001-03-27 Marlow Ind Inc Temperature controlled picnic box
JP2553022Y2 (en) * 1993-12-28 1997-11-05 ツインバード工業株式会社 Cold storage
KR20000014340A (en) * 1998-08-20 2000-03-06 곽춘근 Kimchi refrigerator
KR200353322Y1 (en) * 2004-03-18 2004-06-14 엄준식 Cooling and heating cabinet used solar battery
CN207350602U (en) * 2017-05-02 2018-05-11 惠州市杰德电器有限公司 A kind of novel kitchen refrigeration system
WO2021186441A1 (en) * 2020-03-19 2021-09-23 Steiner Isaac Respirator device and method
WO2021242816A1 (en) * 2020-05-27 2021-12-02 Igloo Products Corp. Modular thermoelectric apparatus for use in multiple portable containers

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