Patent ID: 11944080
Assignee: nan
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC A  F | IPC A  F

Claim 16:
17. A solar powered watering system, comprising:
an external heat collector comprising one or more solar thermal collectors;
an open air water tank configured to receive water therein, wherein the water tank has sidewalls at least partially formed from low thermal conductivity materials selected from the group comprising: rubber, plastic, polymeric material, polyethylene, metallic materials, steel, copper, aluminum, concrete, cementitious materials, composite materials, fiber reinforced composite materials, and combinations of these materials;
a heat exchanger comprising a closed loop of tubing containing thermal transfer fluid;
wherein the closed loop of tubing is at least partially submerged in the water and is not integral with a bottom of the water tank; and,
wherein when one or more sensors detects that the temperature of the water is below a first threshold temperature, a pump in fluid communication with the heat exchanger starts circulation of the thermal transfer fluid through the closed loop tubing and the pump turns off when the water is at or above a second threshold temperature greater than the first threshold temperature.