David C Fedor

US Patent:

20070163676, Jul 19, 2007

Filed:

Jan 13, 2006

Appl. No.:

11/331733

Inventors:

Kevin Butler - Broadview Heights OH, US
David Fedor - Cleveland Heights OH, US

International Classification:

C23C 8/00
C23C 22/00

US Classification:

148209000

Abstract:

Methods are presented for reducing reactivity of ferroalloys used in the manufacture of stick welding electrodes with ferroalloy coatings, in which surface metal silicon of ferroalloy powder is stabilized by dissolving or prereacting the surface silicon or silicon dioxide to provide stabilized ferroalloy powder with decreased surface reactivity to caustic silicate solutions that can be mixed with silicate solution to form a slurry for coating precut welding rods.

US Patent:

20150360325, Dec 17, 2015

Filed:

May 18, 2015

Appl. No.:

14/714984

Inventors:

Joseph Kenneth Zalokar - Willoughby OH, US
Matthew Jay James - Brunswick OH, US
David Christopher Fedor - North Royalton OH, US
Janet Michelle Morse - Painesville OH, US

Assignee:

LINCOLN GLOBAL, INC. - City of Industry CA

International Classification:

B23K 35/02
B23K 9/00
B23K 35/26
B23K 35/32
B23K 35/28
B23K 35/30

Abstract:

The exposed metal tip of the strike end of an SMAW welding electrode is covered with a protective coating formed from a binder and metal particles. Because metal particles rather than graphite particles are used to provide electrical conductivity to this protective coating, flare-up of the arc when initially struck is eliminated substantially completely. In addition, the potential for weld porosity problems is also eliminated, because the metal particles of the inventive electrode do not produce COas a reaction by-product which can ultimately lead to improper welding technique.

US Patent:

20060201118, Sep 14, 2006

Filed:

Mar 14, 2005

Appl. No.:

11/079712

Inventors:

Gerald Dudash - Willoughby OH, US
David Fedor - Cleveland Hts. OH, US
Mitchell Shellenberger - Mount Joy PA, US

International Classification:

B01D 50/00

US Classification:

055385100

Abstract:

A system for measuring fume generation rates and total fume emissions of welding and allied processes includes a fume collection chamber and an automated welding assembly. The fume collection chamber includes a fume chamber housing, a door attached to the housing, a filter support connected to the housing, a hood connected to the housing and a connector attached to the housing and/or the hood. The automated welding assembly includes a rail, a carriage moveably mounted on the rail, a gun arm connected to the carriage and a welding gun mounted to the gun arm.