	US 12,072,108 B2
	Portable dehumidifier and method of operation
Jared Michael Brill, Madison, WI (US); Steven S. Dingle, Madison, WI (US); and Scott E. Sloan, Sun Prairie, WI (US)
Assigned to THERMA-STOR LLC, Madison, WI (US)
Filed by Therma-Stor LLC, Madison, WI (US)
Filed on Jul. 12, 2021, as Appl. No. 17/372,862.
Application 17/372,862 is a continuation in part of application No. 17/197,639, filed on Mar. 10, 2021, granted, now 11,573,015.
Application 17/197,639 is a continuation in part of application No. 16/234,052, filed on Dec. 27, 2018, granted, now 10,955,148, issued on Mar. 23, 2021.
Application 16/234,052 is a continuation in part of application No. 15/460,772, filed on Mar. 16, 2017, granted, now 10,168,058, issued on Jan. 1, 2019.
Prior Publication US 2021/0341155 A1, Nov. 4, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F24F 1/0083 (2019.01); F24F 1/005 (2019.01); F24F 1/0063 (2019.01); F24F 13/22 (2006.01); F25B 5/04 (2006.01); F25B 6/04 (2006.01); F25B 39/02 (2006.01); F25B 40/02 (2006.01); F25B 41/39 (2021.01); F25B 41/42 (2021.01)

CPC F24F 1/0083 (2019.02) [F24F 1/005 (2019.02); F24F 13/222 (2013.01); F25B 5/04 (2013.01); F25B 6/04 (2013.01); F25B 41/39 (2021.01); F25B 41/42 (2021.01); F24F 1/0063 (2019.02); F24F 2013/227 (2013.01); F25B 39/02 (2013.01); F25B 40/02 (2013.01)]

20 Claims

1. A dehumidification system comprising:

a primary metering device;

a secondary metering device;

a secondary evaporator operable to:

receive a flow of refrigerant from the primary metering device; and

receive an inlet airflow and output a first airflow, the first airflow comprising cooler air than the inlet airflow, the first airflow generated by transferring heat from the inlet airflow to the flow of refrigerant as the inlet airflow passes through the secondary evaporator;

a primary evaporator operable to:

receive the flow of refrigerant from the secondary metering device; and

receive the first airflow and output a second airflow, the second airflow comprising cooler air than the first airflow, the second airflow generated by transferring heat from the first airflow to the flow of refrigerant as the first airflow passes through the primary evaporator;

a drain pan disposed below the primary evaporator and operable to:

capture water removed from the first airflow by the primary evaporator, wherein the drain pan comprises a primary drain port and an overflow drain port, wherein the overflow drain port is located at a greater height than the primary drain port;

a secondary condenser operable to:

receive the flow of refrigerant from the secondary evaporator; and

receive the second airflow and output a third airflow, the third airflow comprising warmer air with a lower relative humidity than the second airflow, the third airflow generated by transferring heat from the flow of refrigerant to the third airflow as the second airflow passes through the secondary condenser;

a compressor operable to:

receive the flow of refrigerant from the primary evaporator and provide the flow of refrigerant to a primary condenser, the flow of refrigerant provided to the primary condenser comprising a higher pressure than the flow of refrigerant received at the compressor; and

the primary condenser operable to:

receive the flow of refrigerant from the compressor; and

transfer heat from the flow of refrigerant to a fourth airflow as the fourth airflow contacts the primary condenser.