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US 8,428,445 B2Granted
Gas heating apparatus and methods
AssigneeThermoceramix Inc.
InventorRichard C. Abbott
Life of this patent
Estimating the term…
Abstract
A thermally sprayed gas heater comprises a gas flow apparatus that propels a gas through a housing; and a thermally sprayed heater bonded to a surface of the apparatus, the heater positioned to heat the gas flow in the housing. In other aspects, a heater system for a turbulent flow gas duct comprises a duct having a gas flow channel, the channel having a shaped surface providing turbulent gas flow in the channel, and a thermally sprayed heater positioned to heat the gas flow in the channel.
Claims20
A drying appliance, comprising:
- a housing;
- a cavity within the housing;
- a gas flow device for providing a flow of gas to the cavity to dry a material within the cavity;
- a thermally-sprayed heater for heating the flow of gas to be provided to the cavity, the thermally-sprayed heater including a resistive heating layer having substantially lamellar structure comprised of substantially flattened circular platelets of an electrically conductive material and an electrically insulating material, the electrically conductive material including a metallic component, the electrically insulating material including a reaction product of the metallic component the reaction product being at least one of an oxide nitride carbide and boride of the metallic component, the thermally-sprayed heater generating heat when electricity is passed through the substantially lamellar structure.
1 more element
The drying appliance of 1, wherein the drying appliance is a clothes dryer.
A drying appliance, comprising:
- a first housing;
- a cavity within the first housing;
- a gas flow device for providing a flow of gas to the cavity to dry a material within the cavity;
- a thermally-sprayed heater for heating the flow of gas to be provided to the cavity, the thermally-sprayed heater including a resistive heating layer having substantially lamellar structure comprised of substantially flatted circular platelets of an electrically conductive material and an electrically insulating material, the electrically conductive material including a metallic component, the electrically insulating material including a reaction product of the metallic component the reaction product being at least one of an oxide nitride carbide and boride of the metallic component, the thermally-sprayed heater generating heat when electricity is passed through the substantially lamellar structure;
- wherein the gas flow device comprises a blower, the blower enclosed within a second housing;
- and
- wherein the thermally-sprayed heater is sprayed on a surface of the second housing.
4 more elements
A drying appliance, comprising:
- a housing;
- a cavity within the housing;
- a gas flow device for providing a flow of gas to the cavity to dry a material within the cavity;
- a thermally-sprayed heater for heating the flow of gas to be provided to the cavity, the thermally-sprayed heater including a resistive heating layer having substantially lamellar structure comprised of substantially flatted circular platelets of an electrically conductive material and an electrically insulating material, the electrically conductive material including a metallic component, the electrically insulating material including a reaction product of the metallic component the reaction product being at least one of an oxide nitride carbide and boride of the metallic component, the thermally-sprayed heater generating heat when electricity is passed through the substantially lamellar structure;
- a gas flow duct, through which the flow of gas is provided to the cavity;
- wherein the thermally-sprayed heater is sprayed on a panel adjacent to the gas flow duct.
3 more elements
A drying appliance, comprising:
- a first housing;
- a cavity within the first housing;
- a gas flow device for providing a flow of gas to the cavity to dry a material within the cavity;
- a thermally-sprayed heater for heating the flow of gas to be provided to the cavity, the thermally-sprayed heater including a resistive heating layer having substantially lamellar structure comprised of substantially flatted circular platelets of an electrically conductive material and an electrically insulating material, the electrically conductive material including a metallic component, the electrically insulating material including a reaction product of the metallic component, the reaction product being at least one of an oxide nitride carbide and boride of the metallic component, the thermally-sprayed heater heat when electricity is passed through the substantially lamellar structure;
- wherein the gas flow device comprises a blower and a second housing, the blower enclosed within the second housing;
- and
- wherein the thermally-sprayed heater is sprayed on a panel adjacent to the second housing.
4 more elements
Dependencies are inferred from the claim text.