Dennis R. Hughes

Person

Germantown, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Heating device having a secondary safety circuit for a fuel line an...
- Patent number 9,228,746
- Issue date Jan 5, 2016
- AOS Holding Company
- Dennis R. Hughes
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Anti-stacking pump assembly for a water heater and method of operat...
- Patent number 8,596,225
- Issue date Dec 3, 2013
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Removable heat exchanger for a gas fired water heater
- Patent number 8,047,164
- Issue date Nov 1, 2011
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heating device having a thermal cut-off circuit for a fuel line and...
- Patent number 7,438,023
- Issue date Oct 21, 2008
- AOS Holding Company
- Hyungsik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Blower and method of conveying fluids
- Patent number 7,354,244
- Issue date Apr 8, 2008
- AOS Holding Company
- Michael Robert Hasbargen
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Rooftop water heater
- Patent number 7,277,627
- Issue date Oct 2, 2007
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Airflow apparatus
- Patent number 6,948,454
- Issue date Sep 27, 2005
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater having flue damper with airflow apparatus
- Patent number 6,745,724
- Issue date Jun 8, 2004
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Rooftop water heater
- Patent number 6,679,014
- Issue date Jan 20, 2004
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Rooftop water heater
- Patent number 6,591,788
- Issue date Jul 15, 2003
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Water heater having flue damper with airflow apparatus
- Patent number 6,557,501
- Issue date May 6, 2003
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater flue system
- Patent number 6,422,179
- Issue date Jul 23, 2002
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater flue system
- Patent number 6,286,465
- Issue date Sep 11, 2001
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater heat trap
- Patent number 6,269,780
- Issue date Aug 7, 2001
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Gold-plated water heater element and method of making same
- Patent number 6,262,401
- Issue date Jul 17, 2001
- AOS Holding Company
- Ray O. Knoeppel
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Combined potable water heater and hydronic heating system
- Patent number 6,202,935
- Issue date Mar 20, 2001
- AOS Holding Company
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Scale-inhibiting heating element and method of making same
- Patent number 6,205,291
- Issue date Mar 20, 2001
- A. O. Smith Corporation
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Combustion burner for a water heater
- Patent number 6,036,480
- Issue date Mar 14, 2000
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater with integral mixing valve
- Patent number 5,347,956
- Issue date Sep 20, 1994
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater construction
- Patent number 4,951,614
- Issue date Aug 28, 1990
- A. O. Smith Corp.
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater construction
- Patent number 4,911,108
- Issue date Mar 27, 1990
- A. O. Smith Corporation
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Turbulator construction for a heat exchanger
- Patent number 4,823,865
- Issue date Apr 25, 1989
- A. O. Smith Corporation
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water heater construction
- Patent number 4,817,564
- Issue date Apr 4, 1989
- A. O. Smith Corporation
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat exchanger having a turbulator construction
- Patent number 4,577,681
- Issue date Mar 25, 1986
- A. O. Smith Corporation
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WATER HEATER HAVING CONDENSING RECUPERATOR AND DUAL PURPOSE PUMP
- Publication number 20130319348
- Publication date Dec 5, 2013
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Application
PULSE COMBUSTION SYSTEM FOR A WATER HEATER
- Publication number 20100192874
- Publication date Aug 5, 2010
- Dennis R. Hughes
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
ANTI-STACKING PUMP ASSEMBLY FOR A WATER HEATER AND METHOD OF OPERAT...
- Publication number 20100122669
- Publication date May 20, 2010
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
REMOVABLE HEAT EXCHANGER FOR A GAS FIRED WATER HEATER
- Publication number 20090308333
- Publication date Dec 17, 2009
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Application
HEATING DEVICE HAVING A THERMAL CUT-OFF CIRCUIT FOR A FUEL LINE AND...
- Publication number 20070284000
- Publication date Dec 13, 2007
- AOS Holding Company
- Hyungsik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
HEATING DEVICE HAVING A SECONDARY SAFETY CIRCUIT FOR A FUEL LINE AN...
- Publication number 20070281257
- Publication date Dec 6, 2007
- AOS Holding Company
- Dennis R. Hughes
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Blower and method of conveying fluids
- Publication number 20060065211
- Publication date Mar 30, 2006
- AOS Holding Company
- Michael Robert Hasbargen
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Airflow apparatus
- Publication number 20040206311
- Publication date Oct 21, 2004
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Water heater having flue damper with airflow apparatus
- Publication number 20030196610
- Publication date Oct 23, 2003
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Rooftop water heater
- Publication number 20030123863
- Publication date Jul 3, 2003
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Rooftop water heater
- Publication number 20030041554
- Publication date Mar 6, 2003
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Water heater having flue damper with airflow apparatus
- Publication number 20030024487
- Publication date Feb 6, 2003
- AOS Holding Company
- Dennis R. Hughes
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Rooftop water heater
- Publication number 20020069868
- Publication date Jun 13, 2002
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Water heater flue system
- Publication number 20010035135
- Publication date Nov 1, 2001
- AOS Holding Company
- Dennis R. Hughes
- F28 - HEAT EXCHANGE IN GENERAL

Dennis R. Hughes

Person

Patents Grantslast 30 patents

Heating device having a secondary safety circuit for a fuel line an...

Anti-stacking pump assembly for a water heater and method of operat...

Removable heat exchanger for a gas fired water heater

Heating device having a thermal cut-off circuit for a fuel line and...

Blower and method of conveying fluids

Rooftop water heater

Airflow apparatus

Water heater having flue damper with airflow apparatus

Rooftop water heater

Rooftop water heater

Water heater having flue damper with airflow apparatus

Water heater flue system

Water heater flue system

Water heater heat trap

Gold-plated water heater element and method of making same

Combined potable water heater and hydronic heating system

Scale-inhibiting heating element and method of making same

Combustion burner for a water heater

Water heater with integral mixing valve

Water heater construction

Water heater construction

Turbulator construction for a heat exchanger

Water heater construction

Heat exchanger having a turbulator construction

Patents Applicationslast 30 patents

WATER HEATER HAVING CONDENSING RECUPERATOR AND DUAL PURPOSE PUMP

PULSE COMBUSTION SYSTEM FOR A WATER HEATER

ANTI-STACKING PUMP ASSEMBLY FOR A WATER HEATER AND METHOD OF OPERAT...

REMOVABLE HEAT EXCHANGER FOR A GAS FIRED WATER HEATER

HEATING DEVICE HAVING A THERMAL CUT-OFF CIRCUIT FOR A FUEL LINE AND...

HEATING DEVICE HAVING A SECONDARY SAFETY CIRCUIT FOR A FUEL LINE AN...

Blower and method of conveying fluids

Airflow apparatus

Water heater having flue damper with airflow apparatus

Rooftop water heater

Rooftop water heater

Water heater having flue damper with airflow apparatus

Rooftop water heater

Water heater flue system