Gerald Dufrenne

Person

La Verne, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fast response weld head
- Patent number 5,386,092
- Issue date Jan 31, 1995
- Unitek Equipment Inc.
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Motorized weld head
- Patent number 5,225,647
- Issue date Jul 6, 1993
- Unitek Equipment Inc.
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for monitoring weld quality
- Patent number 5,081,338
- Issue date Jan 14, 1992
- Unitek Equipment Inc.
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Titiable electric thermode for multiple connection reflow soldering
- Patent number 4,871,899
- Issue date Oct 3, 1989
- Unitek Corporation
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld resistance measuring apparatus for a spot welder
- Patent number 4,639,569
- Issue date Jan 27, 1987
- Unitek Corporation
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Direct current pulse welder
- Patent number 4,564,735
- Issue date Jan 14, 1986
- Unitek Corporation
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Voltage regulated capacitive discharge welding power supply
- Patent number 4,228,340
- Issue date Oct 14, 1980
- Unitek Corporation
- Gerald Dufrenne
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Gerald Dufrenne

Person

Patents Grantslast 30 patents

Fast response weld head

Motorized weld head

Apparatus and method for monitoring weld quality

Titiable electric thermode for multiple connection reflow soldering

Weld resistance measuring apparatus for a spot welder

Direct current pulse welder

Voltage regulated capacitive discharge welding power supply