US Patent No: 4,518,345

Number of patents in Portfolio can not be more than 2000

Direct ignition gas burner control system

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Importance

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Abstract

A direct ignition gas burner control system includes an igniter, two serially-arranged gas valves for controlling the flow of gas to the burner, and a microcomputer and related circuitry for controlling energizing of the igniter and valves. The microcomputer and its related circuitry provide for numerous options in system functions and for numerous checks on the integrity of the system components.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EMERSON ELECTRIC CO.ST LOUIS, MO1403

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haefner, John S St. Louis, MO 11 91
Mueller, Carl J St. Louis, MO 40 317

Cited Art

Patent Info (Count) # Cites Year
 
EMERSON ELECTRIC CO. (3)
4,188,181 Gas burner control system 16 1978
4,306,853 Direct ignition gas burner control system with diode steering circuitry 11 1980
4,444,551 Direct ignition gas burner control system 27 1981
 
RAM PRODUCTS, INC. (2)
4,265,612 Intermittent pulsing gas ignition system 9 1979
4,402,663 Automatic ignition and flame detection system for gas fired devices 18 1981
 
Honeywell Inc. (1)
4,211,526 Control system for redundant valves 2 1978

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
Honeywell Inc. (7)
4,866,363 Fail-safe potentiometer feedback system 5 1987
4,963,088 Safety-related parameter inputs for microprocessor ignition controller 2 1988
4,915,613 Method and apparatus for monitoring pressure sensors 11 1989
4,923,117 Microcomputer-controlled system with redundant checking of sensor outputs 19 1989
5,026,270 Microcontroller and system for controlling trial times in a furnace system 15 1990
5,076,780 Digital controller component failure detection for gas appliance ignition function 19 1990
5,074,780 Control system for forced combustion air heating appliance 19 1990
 
EMERSON ELECTRIC CO. (6)
4,615,282 Hot surface ignition system control module with accelerated igniter warm-up test program 10 1985
4,827,397 Microcomputer-based spark ignition gas burner control system 1 1987
4,925,386 Fuel burner control system with hot surface ignition 25 1989
5,725,368 System for providing rapid warm-up of electrical resistance igniter 11 1997
6,803,544 Ignitor distinguishing control system and method therefor 7 2000
6,521,869 System for powering an igniter to a level proven to ignite gas 8 2001
 
INTERNATIONAL COMFORT PRODUCTS CORPORATION (USA) (3)
5,186,386 Two stage furnace control 10 1990
5,027,789 Fan control arrangement for a two stage furnace 27 1990
4,976,459 Warmup method for a two stage furnace 13 1990
 
AOS HOLDING COMPANY (2)
8,068,727 Storage-type water heater having tank condition monitoring features 2 2008
8,162,232 Water storage device having a powered anode 0 2008
 
Hamilton Standard Controls, Inc. (2)
4,865,538 Fail safe gas valve drive circuit 8 1987
4,832,594 Control system with timer redundancy 2 1987
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (2)
5,051,936 Microprocessor-based controller with synchronous reset 10 1989
5,456,597 Intelligen transient eliminator for an ignition system 2 1993
 
BURNER SYSTEMS INTERNATIONAL, INC. (1)
5,655,900 Gas oven control system 6 1995
 
CARRIER CORPORATION (1)
4,850,852 Gas valve shut off method and apparatus 12 1988
 
ELECTROLUX HOME PRODUCTS, INC. (1)
5,241,463 Control system for gas burners 18 1989
 
Henny Penny Corporation (1)
5,244,379 Control system for a gas cooking device 7 1991
 
HONEYWELL INTERNATIONAL INC. (1)
6,728,600 Distributed appliance control system having fault isolation 8 2000
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (1)
5,408,573 Integrated motor controller 11 1992
 
LINCOLN BRASS WORDS, INC. (1)
5,468,145 Sealed gas burner assembly 28 1994
 
PALOMA INDUSTRIES, LIMITED (1)
5,571,007 System for monitoring a combustion apparatus 13 1994
 
SENSATA TECHNOLOGIES, INC. (1)
5,506,569 Self-diagnostic flame rectification sensing circuit and method therefor 27 1994
 
SHIMADZU CORPORATION (1)
5,990,798 Atomic absorption photometer with a safety monitor 0 1998
 
STEIN ENERGIE CHAUDIERES INDUSTRIELLES (1)
7,008,217 Safety device for boiler comprising a time delay protected by an electronic circuit 0 2002
 
WHIRLPOOL CORPORATION (1)
6,363,971 Integrated gas valve assembly 2 2000