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US 8,893,707 B2Granted
Gas-fired heater with carbon dioxide detector
AssigneeEnerco Group, Inc.
InventorDonald R. Jamieson
Life of this patent
Estimating the term…
Abstract
A portable gas-fired heater comprising a housing, a burner assembly, and a carbon dioxide detector system. The housing is adapted to at least partially enclose a fuel source. The burner assembly is enclosed by the housing.
Claims20
A portable gas-fired radiant heater comprising:
- a housing;
- a fuel source;
- a fuel connection fitting;
- an air inlet;
- a burner assembly mounted within the housing, said burner assembly comprising
- a fuel valve adapted to control communication with said fuel source
- a radiant surface in the housing, said radiant surface adapted to function as a combustion site;
- and
- an automatic shutoff mechanism operatively associated with the burner assembly for shutting off the fuel valve in response to a detection of a predetermined level of carbon dioxide,
- said automatic shutoff mechanism comprising,
- a carbon dioxide detector,
- a standing pilot,
- a safety valve,
- a PC board, and
- a power supply.
12 more elements
A portable gas-fired infrared heater comprising:
- a housing, said housing comprising
- a handle adapted for transporting the heater, and
- an air inlet;
- a regulator;
- a burner assembly mounted within the housing, said burner assembly comprising
- a fuel valve adapted to control communication with a fuel source,
- a venturi for mixing air from the air inlet and fuel from the fuel valve into a fuel-air mixture;
- a radiant surface, said radiant surface
- recessed into the housing,
- disposed at an angle to vertical, and
- comprising a rear face;
- a plenum chamber adjacent to said radiant surface, said plenum chamber
- in communication with said radiant surface, and
- adapted to distribute said fuel-air mixture onto the rear face of the radiant surface;
- and
- a carbon dioxide detector system,
- said carbon dioxide detector system adapted to shut off the fuel valve in response to detection of a predetermined level of carbon dioxide, and
- said carbon dioxide detector system comprising,
- a standing pilot,
- a safety valve,
- a PC board, and
- a power supply.
19 more elements
Dependencies are inferred from the claim text.