Donald Cunningham

Person

Pittsburgh, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Integral heating and cooling unit
- Patent number 6,668,136
- Issue date Dec 23, 2003
- Chromalox, Inc.
- Sam W. Henry
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Metal sheath heating element and method of manufacturing same
- Patent number 6,191,400
- Issue date Feb 20, 2001
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Heating and sensing apparatus for range top
- Patent number 5,220,155
- Issue date Jun 15, 1993
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Sheathed electric heating element assembly
- Patent number 4,900,897
- Issue date Feb 13, 1990
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Self-regulating baseboard heater and system
- Patent number 4,879,453
- Issue date Nov 7, 1989
- Emerson Electric Co.
- Donald M. Cunningham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat transfer heating element and method
- Patent number 4,733,055
- Issue date Mar 22, 1988
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Self-regulating baseboard heater, system and method
- Patent number 4,689,470
- Issue date Aug 25, 1987
- Emerson Electric Co.
- Donald M. Cunningham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Electric immersion heating element assembly for use with a plastic...
- Patent number 4,687,905
- Issue date Aug 18, 1987
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Heating cable and method of making same
- Patent number 4,650,972
- Issue date Mar 17, 1987
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Grounding arrangement for metal sheathed heating element having a p...
- Patent number 4,543,469
- Issue date Sep 24, 1985
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric heating elements
- Patent number 4,468,556
- Issue date Aug 28, 1984
- Emerson Electric Co.
- Donald M. Cunningham
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Electric circulation heater for heating fluids such as oil
- Patent number 4,395,618
- Issue date Jul 26, 1983
- Emerson Electric Co.
- Donald M. Cunningham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Metal extrusion for an electric heating element
- Patent number D263734
- Issue date Apr 6, 1982
- Emerson Electric Co.
- Donald M. Cunningham
- D23 - Environmental heating and cooling
Information Patent Grant
Electric heating elements
- Patent number 4,319,127
- Issue date Mar 9, 1982
- Emerson Electric Co.
- John A. Lindstrom
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric heating elements
- Patent number 4,214,150
- Issue date Jul 22, 1980
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
End seals for electric immersion heating elements
- Patent number 4,178,497
- Issue date Dec 11, 1979
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric heating elements
- Patent number 4,010,350
- Issue date Mar 1, 1977
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric heating elements
- Patent number 3,943,328
- Issue date Mar 9, 1976
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric heater assemblies
- Patent number 3,934,116
- Issue date Jan 20, 1976
- Emerson Electric Co.
- Donald M. Cunningham
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Temperature conditioning means
- Patent number 3,933,200
- Issue date Jan 20, 1976
- Emerson Electric Co.
- Donald M. Cunningham
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Electric heating units
- Patent number 3,931,495
- Issue date Jan 6, 1976
- Emerson Electric Co.
- Walter J. Dzaack
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Intergral heating and cooling unit
- Publication number 20020186969
- Publication date Dec 12, 2002
- Sam W. Henry
- F24 - HEATING RANGES VENTILATING

Donald Cunningham

Person

Patents Grantslast 30 patents

Integral heating and cooling unit

Metal sheath heating element and method of manufacturing same

Heating and sensing apparatus for range top

Sheathed electric heating element assembly

Self-regulating baseboard heater and system

Heat transfer heating element and method

Self-regulating baseboard heater, system and method

Electric immersion heating element assembly for use with a plastic...

Heating cable and method of making same

Grounding arrangement for metal sheathed heating element having a p...

Electric heating elements

Electric circulation heater for heating fluids such as oil

Metal extrusion for an electric heating element

Electric heating elements

Electric heating elements

End seals for electric immersion heating elements

Electric heating elements

Electric heating elements

Electric heater assemblies

Temperature conditioning means

Electric heating units

Patents Applicationslast 30 patents

Intergral heating and cooling unit