US 12,109,170 B2
Backup methods and systems for spa system thermal management
York Sikora, Ottawa (CA)
Filed by York Sikora, Ottawa (CA)
Filed on Jun. 8, 2023, as Appl. No. 18/331,367.
Application 18/331,367 is a continuation of application No. 17/815,048, filed on Jul. 26, 2022, granted, now 11,723,837.
Application 17/815,048 is a continuation of application No. 16/498,113, granted, now 11,446,204, issued on Sep. 20, 2022, previously published as PCT/CA2018/000152, filed on Aug. 16, 2018.
Claims priority of provisional application 62/546,088, filed on Aug. 16, 2017.
Prior Publication US 2023/0310266 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61H 33/00 (2006.01); F24D 19/00 (2006.01)
CPC A61H 33/6005 (2013.01) [A61H 33/0091 (2013.01); A61H 33/6068 (2013.01); F24D 19/0095 (2013.01); A61H 2201/0207 (2013.01); A61H 2201/0242 (2013.01); A61H 2201/5082 (2013.01); A61H 2201/5097 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for freeze protection of a fluidic system comprising a fluidic circuit, a controller coupled to powered components of the fluidic system, the powered components of the fluidic system and a mains power interface powering at least one of the powered components of the fluidic system and the controller, the system comprising:
a control unit coupled to a temperature sensor for enabling a heater not forming part of the powered components of the fluidic circuit when a reading from the temperature sensor received by the control unit indicates that one of a temperature of air within a cavity within which part of the fluidic circuit is disposed, a temperature of a pipe forming part of the fluidic circuit, and a temperature of a fluid within the fluidic circuit has dropped below a predetermined threshold independent of a state of the fluidic circuit.