Keith G Pierce

US Patent:

20220306954, Sep 29, 2022

Filed:

Nov 6, 2018

Appl. No.:

16/762966

Inventors:

Clayton ORIVAM DE MORAIS - Amherst NY, US
Keith G. PIERCE - East Amherst NY, US
Marcos Müller LOBATO - Rio de Janeiro, BR

International Classification:

C10L 3/02
C10L 3/06

Abstract:

Fuel gas compositions for use in metal fabrication are provided comprising fuel gases comprising a base fuel gas mixed with from about 1% to less than 30% hydrogen.

US Patent:

20220241895, Aug 4, 2022

Filed:

Jan 29, 2021

Appl. No.:

17/162214

Inventors:

Junjie Ma - Getzville NY, US
Keith G. Pierce - East Amherst NY, US

International Classification:

B23K 26/14
B23K 26/21
B23K 26/32

Abstract:

A shielding gas, apparatus, and method are provided for laser welding workpieces comprising aluminum or aluminum alloy. The shielding gas includes argon (Ar); and active gas components in a range of 0.5% to 3% by volume of the shielding gas. The active gas components include a combination of oxygen (O) and at least one of nitrous oxide (NO) and nitrogen (N).

US Patent:

20210268611, Sep 2, 2021

Filed:

May 12, 2021

Appl. No.:

17/318557

Inventors:

Philip L. Miller - Corfu NY, US
Kevin A. Lyttle - Williamsville NY, US
Jeremy B. Neff - Boston NY, US
Douglas A. Steyer - Orchard Park NY, US
Keith G. Pierce - East Amherst NY, US

International Classification:

B23K 35/38
B23K 9/23
B23K 9/173
B23K 9/167

Abstract:

The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.

US Patent:

20150165565, Jun 18, 2015

Filed:

Dec 16, 2013

Appl. No.:

14/107275

Inventors:

PHILIP L. MILLER - Corfu NY, US
Kevin A. Lyttle - Williamsville NY, US
Jeremy B. Neff - Boston NY, US
Douglas A. Steyer - Orchard Park NY, US
Keith G. Pierce - East Amherst NY, US

International Classification:

B23K 35/38
B23K 9/23

Abstract:

The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.