US20080168955A1 - Gas water heater having carbon dioxide detector - Google Patents

Gas water heater having carbon dioxide detector Download PDF

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Publication number
US20080168955A1
US20080168955A1 US11/654,733 US65473307A US2008168955A1 US 20080168955 A1 US20080168955 A1 US 20080168955A1 US 65473307 A US65473307 A US 65473307A US 2008168955 A1 US2008168955 A1 US 2008168955A1
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Prior art keywords
carbon dioxide
gas burner
gaseous fuel
housing
supplying
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Abandoned
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US11/654,733
Inventor
Hsin Ming Huang
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Grand Mate Co Ltd
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Grand Mate Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Grand Mate Co Ltd filed Critical Grand Mate Co Ltd
Priority to US11/654,733 priority Critical patent/US20080168955A1/en
Assigned to GRAND MATE CO., LTD. reassignment GRAND MATE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HUANG, HSIN MING
Publication of US20080168955A1 publication Critical patent/US20080168955A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0084—Combustion air preheating
    • F24H9/0089—Combustion air preheating by double wall boiler mantle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2900/00—Special features of, or arrangements for controlling combustion
    • F23N2900/05002—Measuring CO2 content in flue gas

Definitions

  • the present invention relates to a gas water heater, and more particularly to a gas water heater including a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.
  • Typical gas water heaters comprise a gas burner and a gaseous fuel supplying pipe coupled to the gas burner for suitably supplying the gaseous fuel to the gas burner and for allowing the gaseous fuel to be burned or combusted by the gas burner to generate heat and to heat the water or the fluid or the like and thus for suitably supplying the heated or hot water to the users.
  • U.S. Pat. No. 1,474,931 to Gordon discloses one of the typical gas water heaters which also comprising a cold water pipe connected with the lower portion of the water heater, a hot water pipe connected with the upper portion of the water heater for supplying the hot water out of the water heater, and a gas burner for generating the heat and for suitably supplying the heated or hot water to the users.
  • the gas burner may generate a carbon dioxide when burning or combusting the gaseous fuel, and the carbon dioxide may be filled within the house building and may even kill people when the air circulation arrangement of the house building is not good enough.
  • the gaseous fuel has been over supplied to the gas burner and the gaseous fuel may not be suitably or completely burned or combusted by the gas burner such that much of the gaseous fuel will be wasted and such that the typical gas water heater is not economical.
  • U.S. Pat. No. 2,100,766 to Papoutsis discloses another typical gas water heater comprising a gas burner, a gas plate or a griddle for suitably burning or combusting the gaseous fuel, and for generating heat to heat the water or the fluid or the like and for suitably supplying the heated or hot water to a hot water tank, and thus for suitably supplying the heated or hot water to the users.
  • the gas burner may generate a carbon dioxide and the carbon dioxide may also have a good chance to kill the people within the house building.
  • the gaseous fuel may not be suitably or completely burned or combusted by the gas burner and may thus generate too much carbon dioxide such that the gaseous fuel may have been over supplied to the gas burner and such that much of the gaseous fuel will be wasted and such that the typical gas water heater is not economical.
  • U.S. Pat. No. 4,311,664 to Zaremba et al. discloses a further typical flame-photometric detector burner of a gas chromatograph employing a system of two nozzles arranged in relation to each other, one of the nozzles is designed to supply carrier gas, and the other nozzle is arranged within a hydrogen system in a cavity of a combustion chamber of a detector block.
  • an additional detector block is required to be provided for detecting the flame, and the burner also may generate a carbon dioxide and the carbon dioxide may also have a good chance to kill the people within the house building.
  • the present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional gas water heaters.
  • the primary objective of the present invention is to provide a gas water heater including a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.
  • a gas water heater comprising a housing including a chamber formed therein, and including at least one opening formed therein and communicating with the chamber of the housing for allowing an air to flow into the chamber of the housing, and including an outlet port for allowing a combusted air or gas to flow out of the housing, a piping disposed in the chamber of the housing for receiving a fluid to be heated by the gas water heater, the piping including an entrance for supplying the fluid into the piping and an exit for supplying a heated fluid out of the piping, a gas burner disposed in the chamber of the housing, a gaseous fuel supplying pipe coupled to the gas burner for supplying a gaseous fuel to the gas burner and for allowing the gaseous fuel to be burned with the gas burner in order to generate a heat and to heat the fluid flowing through the piping, a regulating device coupled to the gas burner for adjusting a supplying of the gaseous fuel to the gas burner, a carbon dioxide detector disposed in the chamber
  • the regulating device may be a solenoid valve or the like.
  • the carbon dioxide detector is preferably disposed in the outlet port of the housing for detecting the quantity of the carbon dioxide flowing out through the outlet port of the housing or contained within the housing.
  • An electric power source may further be provided and coupled to the control device for supplying an electric energy to energize the control device, the carbon dioxide detector, the regulating device and/or the other electric parts or elements of the gas water heater.
  • the carbon dioxide detector may also be used to the generation or the quantity of the carbon monoxide for controlling the supplying of the gaseous fuel to the gas burner and for allowing the gaseous fuel to be completely burned.
  • FIG. 1 is a front plan schematic view of a gas water heater in accordance with the present invention in which an outer or front cover has been removed for showing an inner structure of the gas water heater;
  • FIG. 2 is a partial cross sectional view of the gas water heater illustrating the inner structure of the gas water heater
  • FIG. 3 is a block diagram illustrating the arrangement of the parts or elements of the gas water heater.
  • the piping 14 includes an entrance 15 for supplying the water or the fluid or the like into the piping 14 , and an exit 16 for supplying the heated or hot water out of the piping 14 .
  • a gas burner 20 is also disposed in the chamber 11 of the housing 10 and preferably disposed or arranged within the water coil or piping 14 for receiving the gaseous fuel from a gaseous fuel supplying pipe 21 for suitably burning or combusting the gaseous fuel in order to generate heat and to heat the water or the fluid or the like flowing through the piping 14 .
  • An adjusting or regulating device 30 such as a regulating solenoid valve 30 is further provided and coupled to the gaseous fuel supplying pipe 21 or directly coupled to the gas burner 20 for adjusting or regulating the gaseous fuel supplied to the gas burner 20 and thus for adjusting or regulating the flame generated by the gas burner 20 .
  • the gas water heater 1 in accordance with the present invention further includes a carbon dioxide detector 40 for detecting the quantity of the carbon dioxide generated by the gas burner 20 .
  • the carbon dioxide detector 40 may be disposed in the chamber 11 of the housing 10 and preferably disposed in the outlet port 13 of the housing 10 , or located close to the outlet port 13 of the housing 10 , for detecting the quantity of the carbon dioxide flowing out through the outlet port 13 of the housing 10 or contained within the housing 10 .
  • a processing or control device 50 may further be provided and coupled to the carbon dioxide detector 40 for receiving the detected data or information or pulse signals from the carbon dioxide detector 40 and for treating or processing or calculating the detected data or information.
  • the control device 50 is also coupled to the regulating device 30 for controlling or operating the regulating device 30 and for adjusting or regulating the gaseous fuel supplied to the gas burner 20 and thus for adjusting or regulating the burning or the flaming of the gaseous fuel by the gas burner 20 and for suitably reducing the combusting quantity or rate of the carbon dioxide.
  • an electric power source 60 such as one or more batteries, an electric power circuit or other electric power suppliers 60 may further be provided and coupled to the control device 50 for suitably supplying the electric power or energy to energize the control device 50 , the carbon dioxide detector 40 , the regulating device 30 and/or the other electric parts or elements of the gas water heater 1 in accordance with the present invention.
  • the control device 50 may thus be suitably energized by the electric power source 60 to control or to operate the regulating device 30 and to adjust or to regulate the gaseous fuel supplied from the regulating device 30 to the gas burner 20 and thus to adjust or regulate the burning or the flaming of the gaseous fuel by the gas burner 20 .
  • the control device 50 may treat or process or calculate or compare the detected data or information or signals with such as a predetermined table or data or information to determine whether the detected data or information or signals are above or below the predetermined table or data or information. For example, when the detected data or information or signals is above the predetermined table or data or information, i.e., the detected carbon dioxide is too much which means that the gaseous fuel has been suitably or completely burned or combusted by the gas burner 20 , the control device 50 may control or actuate the regulating device 30 to selectively, but not necessarily supply less or much more gaseous fuel to the gas burner 20 .
  • the control device 50 may thus control or actuate the regulating device 30 to supply much more or less gaseous fuel to the gas burner 20 to allow the gaseous fuel to be suitably or completely burned or combusted by the gas burner 20 in order to suitably reduce the quantity of the carbon dioxide.
  • the carbon dioxide detector 40 may also be used to the generation or the quantity of the carbon monoxide.
  • the gas water heater in accordance with the present invention includes a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

A gas water heater includes a piping disposed in a housing for receiving a fluid to be heated, a gas burner for receiving a gaseous fuel and for generating a heat to heat the fluid flowing through the piping, and a regulating device coupled to the gas burner for adjusting the supplying of the gaseous fuel to the gas burner. A carbon dioxide detector is disposed in the housing for detecting the carbon dioxide or carbon monoxide generated by the gas burner, and a control device is coupled to the carbon dioxide detector for receiving the detected signal from the carbon dioxide detector and for operating the regulating device to adjust the supplying of the gaseous fuel to the gas burner and for allowing the gaseous fuel to be completely burned.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a gas water heater, and more particularly to a gas water heater including a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.
  • 2. Description of the Prior Art
  • Typical gas water heaters comprise a gas burner and a gaseous fuel supplying pipe coupled to the gas burner for suitably supplying the gaseous fuel to the gas burner and for allowing the gaseous fuel to be burned or combusted by the gas burner to generate heat and to heat the water or the fluid or the like and thus for suitably supplying the heated or hot water to the users.
  • For example, U.S. Pat. No. 1,474,931 to Gordon discloses one of the typical gas water heaters which also comprising a cold water pipe connected with the lower portion of the water heater, a hot water pipe connected with the upper portion of the water heater for supplying the hot water out of the water heater, and a gas burner for generating the heat and for suitably supplying the heated or hot water to the users.
  • However, the gas burner may generate a carbon dioxide when burning or combusting the gaseous fuel, and the carbon dioxide may be filled within the house building and may even kill people when the air circulation arrangement of the house building is not good enough. In addition, when too much carbon dioxide is generated, it means that the gaseous fuel has been over supplied to the gas burner and the gaseous fuel may not be suitably or completely burned or combusted by the gas burner such that much of the gaseous fuel will be wasted and such that the typical gas water heater is not economical.
  • U.S. Pat. No. 2,100,766 to Papoutsis discloses another typical gas water heater comprising a gas burner, a gas plate or a griddle for suitably burning or combusting the gaseous fuel, and for generating heat to heat the water or the fluid or the like and for suitably supplying the heated or hot water to a hot water tank, and thus for suitably supplying the heated or hot water to the users.
  • However, similarly, when burning or combusting the gaseous fuel, the gas burner may generate a carbon dioxide and the carbon dioxide may also have a good chance to kill the people within the house building. In addition, in some circumstances, the gaseous fuel may not be suitably or completely burned or combusted by the gas burner and may thus generate too much carbon dioxide such that the gaseous fuel may have been over supplied to the gas burner and such that much of the gaseous fuel will be wasted and such that the typical gas water heater is not economical.
  • U.S. Pat. No. 4,311,664 to Zaremba et al. discloses a further typical flame-photometric detector burner of a gas chromatograph employing a system of two nozzles arranged in relation to each other, one of the nozzles is designed to supply carrier gas, and the other nozzle is arranged within a hydrogen system in a cavity of a combustion chamber of a detector block.
  • However, an additional detector block is required to be provided for detecting the flame, and the burner also may generate a carbon dioxide and the carbon dioxide may also have a good chance to kill the people within the house building.
  • The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional gas water heaters.
    • SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to provide a gas water heater including a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.
  • In accordance with one aspect of the invention, there is provided a gas water heater comprising a housing including a chamber formed therein, and including at least one opening formed therein and communicating with the chamber of the housing for allowing an air to flow into the chamber of the housing, and including an outlet port for allowing a combusted air or gas to flow out of the housing, a piping disposed in the chamber of the housing for receiving a fluid to be heated by the gas water heater, the piping including an entrance for supplying the fluid into the piping and an exit for supplying a heated fluid out of the piping, a gas burner disposed in the chamber of the housing, a gaseous fuel supplying pipe coupled to the gas burner for supplying a gaseous fuel to the gas burner and for allowing the gaseous fuel to be burned with the gas burner in order to generate a heat and to heat the fluid flowing through the piping, a regulating device coupled to the gas burner for adjusting a supplying of the gaseous fuel to the gas burner, a carbon dioxide detector disposed in the chamber of the housing for detecting a carbon dioxide generated by the gas burner and a control device coupled to the carbon dioxide detector for receiving a detected signal from the carbon dioxide detector and for processing the detected signal, the control device being coupled to the regulating device for operating the regulating device to adjust the supplying of the gaseous fuel to the gas burner and for allowing the gaseous fuel to be completely burned.
  • The regulating device may be a solenoid valve or the like. The carbon dioxide detector is preferably disposed in the outlet port of the housing for detecting the quantity of the carbon dioxide flowing out through the outlet port of the housing or contained within the housing.
  • An electric power source may further be provided and coupled to the control device for supplying an electric energy to energize the control device, the carbon dioxide detector, the regulating device and/or the other electric parts or elements of the gas water heater.
  • It is preferable that the carbon dioxide detector may also be used to the generation or the quantity of the carbon monoxide for controlling the supplying of the gaseous fuel to the gas burner and for allowing the gaseous fuel to be completely burned.
  • Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front plan schematic view of a gas water heater in accordance with the present invention in which an outer or front cover has been removed for showing an inner structure of the gas water heater;
  • FIG. 2 is a partial cross sectional view of the gas water heater illustrating the inner structure of the gas water heater; and
  • FIG. 3 is a block diagram illustrating the arrangement of the parts or elements of the gas water heater.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to the drawings, and initially to FIGS. 1 and 2, a gas water heater 1 in accordance with the present invention comprises a container or housing 10 including a chamber 11 formed therein, and including a number of orifices or openings 12 formed therein and communicating with the chamber 11 of the housing 10 for allowing the fresh air to flow into the chamber 11 of the housing 10, and including an outlet port 13 for allowing the burned or combusted air or gas to flow out of the housing 10, and including a coil or piping 14 disposed in the chamber 11 of the housing 10 for receiving the water or the fluid or the like to be burned or heated by the gas water heater 1. The piping 14 includes an entrance 15 for supplying the water or the fluid or the like into the piping 14, and an exit 16 for supplying the heated or hot water out of the piping 14.
  • A gas burner 20 is also disposed in the chamber 11 of the housing 10 and preferably disposed or arranged within the water coil or piping 14 for receiving the gaseous fuel from a gaseous fuel supplying pipe 21 for suitably burning or combusting the gaseous fuel in order to generate heat and to heat the water or the fluid or the like flowing through the piping 14. An adjusting or regulating device 30, such as a regulating solenoid valve 30 is further provided and coupled to the gaseous fuel supplying pipe 21 or directly coupled to the gas burner 20 for adjusting or regulating the gaseous fuel supplied to the gas burner 20 and thus for adjusting or regulating the flame generated by the gas burner 20. The gas water heater 1 in accordance with the present invention further includes a carbon dioxide detector 40 for detecting the quantity of the carbon dioxide generated by the gas burner 20.
  • For example, the carbon dioxide detector 40 may be disposed in the chamber 11 of the housing 10 and preferably disposed in the outlet port 13 of the housing 10, or located close to the outlet port 13 of the housing 10, for detecting the quantity of the carbon dioxide flowing out through the outlet port 13 of the housing 10 or contained within the housing 10. As shown in FIG. 3, a processing or control device 50 may further be provided and coupled to the carbon dioxide detector 40 for receiving the detected data or information or pulse signals from the carbon dioxide detector 40 and for treating or processing or calculating the detected data or information. The control device 50 is also coupled to the regulating device 30 for controlling or operating the regulating device 30 and for adjusting or regulating the gaseous fuel supplied to the gas burner 20 and thus for adjusting or regulating the burning or the flaming of the gaseous fuel by the gas burner 20 and for suitably reducing the combusting quantity or rate of the carbon dioxide.
  • As also shown in FIG. 3, an electric power source 60, such as one or more batteries, an electric power circuit or other electric power suppliers 60 may further be provided and coupled to the control device 50 for suitably supplying the electric power or energy to energize the control device 50, the carbon dioxide detector 40, the regulating device 30 and/or the other electric parts or elements of the gas water heater 1 in accordance with the present invention. The control device 50 may thus be suitably energized by the electric power source 60 to control or to operate the regulating device 30 and to adjust or to regulate the gaseous fuel supplied from the regulating device 30 to the gas burner 20 and thus to adjust or regulate the burning or the flaming of the gaseous fuel by the gas burner 20.
  • When or after the control device 50 receives the detected data or information or pulse signals from the carbon dioxide detector 40, the control device 50 may treat or process or calculate or compare the detected data or information or signals with such as a predetermined table or data or information to determine whether the detected data or information or signals are above or below the predetermined table or data or information. For example, when the detected data or information or signals is above the predetermined table or data or information, i.e., the detected carbon dioxide is too much which means that the gaseous fuel has been suitably or completely burned or combusted by the gas burner 20, the control device 50 may control or actuate the regulating device 30 to selectively, but not necessarily supply less or much more gaseous fuel to the gas burner 20.
  • On the contrary, when the detected data or information or signals is below the predetermined table or data or information, the detected carbon dioxide may be less than the required quantity or the detected carbon monoxide may be too much or much more than the predetermined table or data or information, which means that the gaseous fuel has not been suitably or completely burned or combusted by the gas burner 20, the control device 50 may thus control or actuate the regulating device 30 to supply much more or less gaseous fuel to the gas burner 20 to allow the gaseous fuel to be suitably or completely burned or combusted by the gas burner 20 in order to suitably reduce the quantity of the carbon dioxide. It is preferable that the carbon dioxide detector 40 may also be used to the generation or the quantity of the carbon monoxide.
  • Accordingly, the gas water heater in accordance with the present invention includes a carbon dioxide detector for detecting the quantity of the carbon dioxide generated by the gas burner and for adjusting or regulating the supplying of the gaseous fuel to the gas burner and for adjusting or regulating the burning of the gaseous fuel and for suitably reducing the quantity of the carbon dioxide.
  • Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.

Claims (4)

1. A gas water heater comprising:
a housing including a chamber formed therein, and including at least one opening formed therein and communicating with said chamber of said housing for allowing an air to flow into said chamber of said housing, and including an outlet port for allowing a combusted air or gas to flow out of said housing,
a piping disposed in said chamber of said housing for receiving a fluid to be heated by said gas water heater, said piping including an entrance for supplying the fluid into said piping and an exit for supplying a heated fluid out of said piping,
a gas burner disposed in said chamber of said housing,
a gaseous fuel supplying pipe coupled to said gas burner for supplying a gaseous fuel to said gas burner and for allowing the gaseous fuel to be burned with said gas burner in order to generate a heat and to heat the fluid flowing through said piping,
a regulating device coupled to said gas burner for adjusting a supplying of the gaseous fuel to said gas burner,
a carbon dioxide detector disposed in said chamber of said housing for detecting a carbon dioxide generated by said gas burner and
a control device coupled to said carbon dioxide detector for receiving a detected signal from said carbon dioxide detector and for processing the detected signal, said control device being coupled to said regulating device for operating said regulating device to adjust the supplying of the gaseous fuel to said gas burner and for allowing the gaseous fuel to be completely burned.
2. The gas water heater as claimed in claim 1, wherein said regulating device is a solenoid valve.
3. The gas water heater as claimed in claim 1, wherein said carbon dioxide detector is disposed in said outlet port of said housing.
4. The gas water heater as claimed in claim 1 further comprising an electric power source coupled to said control device for supplying an electric energy to energize said control device.
US11/654,733 2007-01-17 2007-01-17 Gas water heater having carbon dioxide detector Abandoned US20080168955A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645027A (en) * 2012-04-26 2012-08-22 苏州市金翔钛设备有限公司 Heater with human body induction module
US20150050607A1 (en) * 2008-12-12 2015-02-19 Enerco Group, Inc. Gas-fired heater with carbon dioxide detector

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1474931A (en) * 1922-08-21 1923-11-20 Gordon Isaac Gas water heater
US2100766A (en) * 1936-10-01 1937-11-30 Konstantinos S Papoutsis Heater
US4311664A (en) * 1976-12-08 1982-01-19 Wojskowy Instytut Chemii I Radiometrii Flame-photometric detector burner of gas chromatograph
US4550689A (en) * 1983-10-31 1985-11-05 Gerry Wolter Gas instantaneous water heater
US5797358A (en) * 1996-07-08 1998-08-25 Aos Holding Company Control system for a water heater
US6334411B1 (en) * 1998-10-21 2002-01-01 Giant Factories Inc. High efficiency, glass-lined, combination space and hot water heater
US6606968B2 (en) * 2002-01-11 2003-08-19 Takagi Industrial Co., Ltd. Water heater unit
US6964248B2 (en) * 2001-03-08 2005-11-15 The Water Heater Industry Joint Research And Development Consortium Fuel-fired heating appliance with temperature-based fuel shutoff system
US7051683B1 (en) * 2005-08-17 2006-05-30 Aos Holding Company Gas heating device control

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1474931A (en) * 1922-08-21 1923-11-20 Gordon Isaac Gas water heater
US2100766A (en) * 1936-10-01 1937-11-30 Konstantinos S Papoutsis Heater
US4311664A (en) * 1976-12-08 1982-01-19 Wojskowy Instytut Chemii I Radiometrii Flame-photometric detector burner of gas chromatograph
US4550689A (en) * 1983-10-31 1985-11-05 Gerry Wolter Gas instantaneous water heater
US5797358A (en) * 1996-07-08 1998-08-25 Aos Holding Company Control system for a water heater
US6334411B1 (en) * 1998-10-21 2002-01-01 Giant Factories Inc. High efficiency, glass-lined, combination space and hot water heater
US6964248B2 (en) * 2001-03-08 2005-11-15 The Water Heater Industry Joint Research And Development Consortium Fuel-fired heating appliance with temperature-based fuel shutoff system
US6606968B2 (en) * 2002-01-11 2003-08-19 Takagi Industrial Co., Ltd. Water heater unit
US7051683B1 (en) * 2005-08-17 2006-05-30 Aos Holding Company Gas heating device control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150050607A1 (en) * 2008-12-12 2015-02-19 Enerco Group, Inc. Gas-fired heater with carbon dioxide detector
US9267708B2 (en) * 2008-12-12 2016-02-23 Enerco Group, Inc. Gas-fired heater with carbon dioxide detector
CN102645027A (en) * 2012-04-26 2012-08-22 苏州市金翔钛设备有限公司 Heater with human body induction module

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AS Assignment

Owner name: GRAND MATE CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HUANG, HSIN MING;REEL/FRAME:018830/0879

Effective date: 20061220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION