Roger Chamberlin

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Sunapee, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
High power factor rectifier/filter for three phase input welder or...
- Patent number 9,550,249
- Issue date Jan 24, 2017
- Victory Equipment Company
- Stephen W. Norris
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc torch system with pilot re-attach circuit and method
- Patent number 6,794,601
- Issue date Sep 21, 2004
- Thermal Dynamics Corporation
- Stephen W. Norris
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
HIGH POWER FACTOR RECTIFIER/FILTER FOR THREE PHASE INPUT WELDER OR...
- Publication number 20140209588
- Publication date Jul 31, 2014
- Thermal Dynamics Corporation
- Stephen W. Norris
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SPLIT PHASE SYNCHRONIZATION OF WELDER/CUTTER INVERTER MODULES FOR R...
- Publication number 20140211512
- Publication date Jul 31, 2014
- Thermal Dynamics Corporation
- Steven W. Norris
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Plasma ARC torch system with pilot re-attach circuit and method
- Publication number 20040045942
- Publication date Mar 11, 2004
- Stephen W. Norris
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR