John L. Erdman

Person

Eden Prairie, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of incorporating wide tolerance set point potentiometers int...
- Patent number 5,542,279
- Issue date Aug 6, 1996
- Honeywell Inc.
- John L. Erdman
- G01 - MEASURING TESTING
Information Patent Grant
Microprocessor watchdog circuit
- Patent number 5,426,776
- Issue date Jun 20, 1995
- Honeywell Inc.
- John L. Erdman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital controller component failure detection for gas appliance ig...
- Patent number 5,076,780
- Issue date Dec 31, 1991
- Honeywell Inc.
- John L. Erdman
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Control system for forced combustion air heating appliance
- Patent number 5,074,780
- Issue date Dec 24, 1991
- Honeywell, Inc.
- John L. Erdman
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Safety-related parameter inputs for microprocessor ignition controller
- Patent number 4,963,088
- Issue date Oct 16, 1990
- Honeywell Inc.
- John L. Erdman
- G05 - CONTROLLING REGULATING
Information Patent Grant
Thermostatically operated fuel valve control circuit
- Patent number 4,789,329
- Issue date Dec 6, 1988
- Honeywell Inc.
- John E. Bohan
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Dual firing rate flame sensing system
- Patent number 4,457,692
- Issue date Jul 3, 1984
- Honeywell Inc.
- John L. Erdman
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

John L. Erdman

Person

Patents Grantslast 30 patents

Method of incorporating wide tolerance set point potentiometers int...

Microprocessor watchdog circuit

Digital controller component failure detection for gas appliance ig...

Control system for forced combustion air heating appliance

Safety-related parameter inputs for microprocessor ignition controller

Thermostatically operated fuel valve control circuit

Dual firing rate flame sensing system