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William T. Harrigill
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Montgomery, AL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Burner flashback detection and system shutdown apparatus
Patent number
7,849,821
Issue date
Dec 14, 2010
Rheem Manufacturing Company
Jacob A. Peart
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Water heater monitor/diagnostic display apparatus
Patent number
7,818,095
Issue date
Oct 19, 2010
Rheem Manufacturing Company
Bruce A. Hotton
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Pumpless combination instantaneous/storage water heater system
Patent number
7,298,968
Issue date
Nov 20, 2007
Rheem Manufacturing Company
Jozef Boros
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Control techniques for shut-off sensors in fuel-fired heating appli...
Patent number
7,242,310
Issue date
Jul 10, 2007
Rheem Manufacturing Company
Bruce A. Hotton
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Power vented, fuel fired water heater with soft ignition system
Patent number
6,418,882
Issue date
Jul 16, 2002
The Water Heater Industry Joint Research and Development Consortium
Troy E. Trant
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Fuel-fired water heater with flammable vapor sensor and associated...
Patent number
6,412,447
Issue date
Jul 2, 2002
The Water Heater Industry Joint Research and Development Consortium
Troy E. Trant
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Combustion air shutoff system for a fuel-fired heating appliance
Patent number
6,035,812
Issue date
Mar 14, 2000
The Water Heater Industry Joint Research and Development Consortium
William T. Harrigill
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Induced draft, fuel-fired furnace apparatus having an improved, hig...
Patent number
4,974,579
Issue date
Dec 4, 1990
Rheem Manufacturing Company
Timothy J. Shellenberger
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Pilot gas bypass system for fuel-fired furnaces
Patent number
4,926,840
Issue date
May 22, 1990
Rheem Manufacturing Company
Timothy J. Shellenberger
F24 - HEATING RANGES VENTILATING
Patents Applications
last 30 patents
Information
Patent Application
Burner Flashback Detection and System Shutdown Apparatus
Publication number
20100192873
Publication date
Aug 5, 2010
RHEEM MANUFACTURING COMPANY
Jacob A. Peart
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Application
Burner Flashback Detection and System Shutdown Apparatus
Publication number
20080251035
Publication date
Oct 16, 2008
RHEEM MANUFACTURING COMPANY
Jacob A. Peart
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Application
WATER HEATER MONITOR/DIAGNOSTIC DISPLAY APPARATUS
Publication number
20080188995
Publication date
Aug 7, 2008
RHEEM MANUFACTURING COMPANY
Bruce A. Hotton
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Control techniques for shut-off sensors in fuel-fired heating appli...
Publication number
20060244618
Publication date
Nov 2, 2006
Bruce A. Hotton
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES