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US 6,053,130 AGranted
Power vent water heater with electronic control system
AssigneeAmerican Water Heater Company
InventorTimothy J. Shellenberger
Life of this patent
Estimating the term…
Abstract
A water heater of the invention includes a water container; a combustion chamber adjacent the water container; a burner associated with the combustion chamber; a flue connected to the combustion chamber; a blower assembly positioned to receive combustion products from the flue and convey the combustion products to a remote location; and a pressure switch positioned to detect blockage of combustion products away from the blower assembly and flow of air from the flue prior to initiation of combustion in the combustion chamber.
Claims35
A water heater comprising:
- a water container;
- a combustion chamber adjacent said water container;
- a burner associated with said combustion chamber;
- a flue connected to said combustion chamber;
- a blower assembly positioned to receive combustion products from said flue and including a blower and an air pressure sensitive switch positioned adjacent to said blower to detect flow of air and combustion products through said blower assembly;
- and
- a controller connected to said blower and said pressure sensitive switch, said controller being capable of checking the status of said switch prior to energizing said blower.
4 more elements
A water heater comprising:
- a water container;
- a combustion chamber adjacent said water container;
- a burner associated with said combustion chamber;
- a flue connected to said combustion chamber;
- a blower assembly having a blower and positioned to receive combustion products from said flue;
- an exhaust line connected to said blower assembly to convey said combustion products away from said blower assembly;
- and
- an air pressure switch positioned at said blower assembly adjacent to said blower to detect flow of air and combustion products through the blower assembly prior to initiation of combustion at said burner.
5 more elements
Dependencies are inferred from the claim text.