Randall J. DuVal

Person

Appleton, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Welder generator engine speed control
- Patent number 11,027,356
- Issue date Jun 8, 2021
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inductor and system for welding for maintaining welding arcs
- Patent number 10,919,103
- Issue date Feb 16, 2021
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welder generator engine speed control
- Patent number 10,144,082
- Issue date Dec 4, 2018
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inductor and system for welding for maintaining welding arcs
- Patent number 9,676,053
- Issue date Jun 13, 2017
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welder generator engine speed control
- Patent number 9,604,302
- Issue date Mar 28, 2017
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Engine driven welder-generator with chopper circuit
- Patent number 9,381,593
- Issue date Jul 5, 2016
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welder generator engine speed control
- Patent number 9,266,183
- Issue date Feb 23, 2016
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Engine driven welder-generator with chopper circuit
- Patent number 8,859,937
- Issue date Oct 14, 2014
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Engine driven welder-generator with chopper circuit
- Patent number 8,502,115
- Issue date Aug 6, 2013
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrical reactor assembly having center taps
- Patent number 7,315,231
- Issue date Jan 1, 2008
- Illinois Tool Works Inc.
- Randall J. DuVal
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical reactor assembly having center taps
- Patent number 6,954,131
- Issue date Oct 11, 2005
- Illinois Tool Works Inc.
- Randall J. DuVal
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
WELDER GENERATOR ENGINE SPEED CONTROL
- Publication number 20190105723
- Publication date Apr 11, 2019
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
INDUCTOR AND SYSTEM FOR WELDING FOR MAINTAINING WELDING ARCS
- Publication number 20170274469
- Publication date Sep 28, 2017
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDER GENERATOR ENGINE SPEED CONTROL
- Publication number 20170182579
- Publication date Jun 29, 2017
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDER GENERATOR ENGINE SPEED CONTROL
- Publication number 20160151851
- Publication date Jun 2, 2016
- Illinois Tool Works Inc.
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT
- Publication number 20150028013
- Publication date Jan 29, 2015
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ROTOR AND GENERATOR FOR REDUCING HARMONICS
- Publication number 20140028141
- Publication date Jan 30, 2014
- Randall J. DuVal
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
WELDER GENERATOR ENGINE SPEED CONTROL
- Publication number 20140027428
- Publication date Jan 30, 2014
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
INDUCTOR AND SYSTEM FOR WELDING FOR MAINTAINING WELDING ARCS
- Publication number 20140027442
- Publication date Jan 30, 2014
- Randall J. DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT
- Publication number 20130306611
- Publication date Nov 21, 2013
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT
- Publication number 20100314372
- Publication date Dec 16, 2010
- Illinois Tool Works Inc.
- Randall Joseph DuVal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRICAL REACTOR ASSEMBLY HAVING CENTER TAPS
- Publication number 20050156701
- Publication date Jul 21, 2005
- Randall J. DuVal
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL REACTOR ASSEMBLY HAVING CENTER TAPS
- Publication number 20040196128
- Publication date Oct 7, 2004
- Illinois Tool Works Inc.
- Randall J. DuVal
- H01 - BASIC ELECTRIC ELEMENTS

Randall J. DuVal

Person

Patents Grantslast 30 patents

Welder generator engine speed control

Inductor and system for welding for maintaining welding arcs

Welder generator engine speed control

Inductor and system for welding for maintaining welding arcs

Welder generator engine speed control

Engine driven welder-generator with chopper circuit

Welder generator engine speed control

Engine driven welder-generator with chopper circuit

Engine driven welder-generator with chopper circuit

Electrical reactor assembly having center taps

Electrical reactor assembly having center taps

Patents Applicationslast 30 patents

WELDER GENERATOR ENGINE SPEED CONTROL

INDUCTOR AND SYSTEM FOR WELDING FOR MAINTAINING WELDING ARCS

WELDER GENERATOR ENGINE SPEED CONTROL

WELDER GENERATOR ENGINE SPEED CONTROL

ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT

ROTOR AND GENERATOR FOR REDUCING HARMONICS

WELDER GENERATOR ENGINE SPEED CONTROL

INDUCTOR AND SYSTEM FOR WELDING FOR MAINTAINING WELDING ARCS

ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT

ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT

ELECTRICAL REACTOR ASSEMBLY HAVING CENTER TAPS

ELECTRICAL REACTOR ASSEMBLY HAVING CENTER TAPS