John Anthony Paille

US Patent:

7789286, Sep 7, 2010

Filed:

Jun 4, 2003

Appl. No.:

10/454350

Inventors:

Roman Gr. Maev - Windsor, CA
Frank J Ewasyshyn - Rochester MI, US
Serguei A Titov - Moscow, RU
John M Paille - Addison Township MI, US
Elena Yu Maeva - Windsor, CA
Alexey A Denisov - Windsor, CA
Fedar M Seviaryn - Windsor, CA

Assignee:

Chrysler Group LLC - Auburn Hills MI

International Classification:

B23K 31/12

US Classification:

228104, 228102, 228103, 228 8, 228 9, 228 565, 219 911, 73588, 73632, 73641, 73644

Abstract:

A method and apparatus for evaluating the size and/or quality of a spot weld. The apparatus includes a two-dimensional array of ultrasonic transducers arranged with a delay line for positioning adjacent a surface of a weld. A layer of gel is placed between the delay line and the weld surface. The array of transducers emit ultrasonic waves that pass into the weld. The reflected waves are received by the transducers and relayed to a central processing unit that analyzes the time delay, amplitude, and amplitude attenuation to calculate the border of the weld nugget, the thickness of the welded material, the thickness of the gel layer, and other factors contributing to weld quality.

US Patent:

20050230360, Oct 20, 2005

Filed:

Jun 14, 2005

Appl. No.:

11/151974

Inventors:

Roman Maev - Windsor, CA
Frank Ewasyshyn - Rochester MI, US
Serguei Titov - Moscow, RU
John Paille - Addison Township MI, US
Elena Maeva - Windsor, CA
Alexey Denisov - Windsor, CA
Fedar Seviaryn - Windsor, CA

International Classification:

B23K011/24

US Classification:

219109000

Abstract:

A method and apparatus for evaluating the size and/or quality of a spot weld. The apparatus includes a two-dimensional array of ultrasonic transducers arranged with a delay line for positioning adjacent a surface of a weld. A layer of gel is placed between the delay line and the weld surface. The array of transducers emit ultrasonic waves that pass into the weld. The reflected waves are received by the transducers and relayed to a central processing unit that analyzes the time delay, amplitude, and amplitude attenuation to calculate the border of the weld nugget, the thickness of the welded material, the thickness of the gel layer, and other factors contributing to weld quality.

US Patent:

20060076321, Apr 13, 2006

Filed:

Sep 8, 2005

Appl. No.:

11/221545

Inventors:

Roman Maev - Windsor, CA
Andriy Chertov - Windsor, CA
John Paille - Rochester Hills MI, US
Frank Ewasyshyn - Rochester MI, US

International Classification:

B23K 11/24

US Classification:

219109000

Abstract:

A method and apparatus for ultrasonic in-process monitoring and feedback of resistance spot weld quality uses at least one transducer located in the electrode assembly transmitting through a weld tip into an underway weld. Analysis of the spectrum of ultrasonic waves provides the operator with an indication of the size, thickness, location, dynamics of formation and quality of the spot weld. The method presents a fundamentally new physical approach to the characterization of the spot weld quality. Together with transmission mode it includes new modes of operation of ultrasonic probes such as a reflection mode and simultaneous use of transmission and reflection modes, and a new physical interpretation of the signal analysis results.

US Patent:

20070114304, May 24, 2007

Filed:

Nov 18, 2005

Appl. No.:

11/282968

Inventors:

Lawrence Guc - Harrison Township MI, US
Roman Maev - Windsor, CA
John Paille - Rochester Hills MI, US
Emil Strumban - Oak Park MI, US

International Classification:

B05B 1/00

US Classification:

239597000, 239601000

Abstract:

A nozzle extension for use with a nozzle of a particulate spray machine features a first substantially linear section terminating in a curvilinearly angled output section having a passageway with a diameter larger than a passageway in the linear section. The larger volume of the output section induces peripheral turbulence in the particulate flow to minimize clogging of the output passageway.

US Patent:

20130186868, Jul 25, 2013

Filed:

Nov 8, 2012

Appl. No.:

13/671633

Inventors:

Manohar Das - Rochester Hills MI, US
Vernon Fernandez - Rochester Hills MI, US
John Paille - Rochester Hills MI, US
Douglas P. Gouin - Lakeshore, CA

International Classification:

B23K 11/24
B23K 11/25

US Classification:

219 911

Abstract:

A probeless energy delivery controller for a resistance spot welding system includes a power supply module that generates a first current and a power delivery module configured to generate a second current from the first current. The current is delivered to a first electrode and a second electrode that have at least two weld pieces interposed there-between. As the current flows through the weld pieces, the resistance and temperature of the weld pieces increase such that the weld pieces weld together. The system further includes a voltage control module that receives a current reading indicating a value of the second current, estimates a resistance of the weld pieces based on the value of the second current, and determines a phase angle for setting a voltage outputted by the power supply module based on the estimated resistance and a power profile. The power supply module generates the first current based on the phase angle.

US Patent:

20130269439, Oct 17, 2013

Filed:

Jun 10, 2013

Appl. No.:

13/913772

Inventors:

Roman Gr. Maev - Windsor, CA
Andriy M. Chertov - Windsor, CA
John M. Paille - Rochester Hills MI, US
Frank J. Ewasyshyn - Rochester MI, US

International Classification:

B23K 11/25

US Classification:

73588

Abstract:

A method and apparatus for ultrasonic in-process monitoring and feedback of resistance spot weld quality uses at least one transducer located in the electrode assembly transmitting through a weld tip into an underway weld. Analysis of the spectrum of ultrasonic waves provides the operator with an indication of the size, thickness, location, dynamics of formation and quality of the spot weld. The method presents a fundamentally new physical approach to the characterization of the spot weld quality. Together with transmission mode it includes new modes of operation of ultrasonic probes such as a reflection mode and simultaneous use of transmission and reflection modes, and a new physical interpretation of the signal analysis results.

US Patent:

20170021446, Jan 26, 2017

Filed:

Feb 15, 2016

Appl. No.:

15/043904

Inventors:

- Birmingham MI, US
Andriy M. Chertov - Windsor, CA
John M. Paille - Rochester Hills MI, US
Frank J. Ewasyshyn - Rochester MI, US

International Classification:

B23K 11/25
G01N 29/06

Abstract:

A method and apparatus for ultrasonic in-process monitoring and feedback of resistance spot weld quality uses at least one transducer located in the electrode assembly transmitting through a weld tip into an underway weld. Analysis of the spectrum of ultrasonic waves provides the operator with an indication of the size, thickness, location, dynamics of formation and quality of the spot weld. The method presents a fundamentally new physical approach to the characterization of the spot weld quality. Together with transmission mode it includes new modes of operation of ultrasonic probes such as a reflection mode and simultaneous use of transmission and reflection modes, and a new physical interpretation of the signal analysis results.