William F Korzeniowski

6202885, Mar 20, 2001

May 28, 1999

9/322667

Alan D. Zdunek - Chicago IL
Eugene A. Kernerman - Mt. Prospect IL
William Korzeniowski - Dayton NJ

American Air Liquide Inc. - Countryside IL
Air Liquide Americas America Corporation - Houston TX
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes
Georges Claude - Paris

C23C 1836

220586

A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0. 1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer. Metal contamination levels of less than about 55 ppb of iron, 10 ppb of chromium, and 5 ppb of nickel by weight can be maintained in liquefied corrosive gasses stored for an extended period of time in the electroless nickel-phosphorus plated gas cylinder.

6365227, Apr 2, 2002

Mar 22, 2001

09/815023

Alan D. Zdunek - Chicago IL
Eugene A. Kernerman - Mt. Prospect IL
William Korzeniowski - Dayton NJ

LAir Liquide, Societe Anonyme pour lEtude et, l Exploitation des Procedes Claude of France
American Air Liquide Inc. - Countryside IL

B05D 722

427239, 427377, 427380, 427437, 427438

A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0. 1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer. Metal contamination levels of less than about 55 ppb of iron, 10 ppb of chromium, and 5 ppb of nickel by weight can be maintained in liquefied corrosive gasses stored for an extended period of time in the electroless nickel-phosphorus plated gas cylinder.

20060272717, Dec 7, 2006

Apr 27, 2006

11/412117

Rajat Agrawal - Naperville IL, US
Gregory Jursich - Clarendon Hills IL, US
John Borzio - Robbinsville NJ, US
William Korzeniowski - Dayton NJ, US
Donald Mitchell - Riegelsville PA, US

F16K 17/04

137881000

A valve device that is securable to a cylinder includes a housing with a central passage in fluid communication with a first connection port that connects with a cylinder, and a second connection port including a passage that is in fluid communication with the central passage. The second connection port is configured to connect with a fluid flow line. A valve member is disposed within the second connection port and includes a movable member that engages with a seat to provide a fluid tight seal for the valve member in a closed position. The movable member is configured to be moved away from the seat so as to open the valve member and permit fluid to flow from the central passage of the valve housing around the movable member and through the second connection port while substantially preventing a backflow of fluids from a location external to the valve housing into the central passage.

62900889, Sep 18, 2001

May 28, 1999

9/322667

Alan D. Zdunek - Chicago IL
Eugene A. Kernerman - Mt. Prospect IL
William Korzeniowski - Dayton NJ

American Air Liquide Inc. - Countryside IL
Air Liquide Americas America Corporation - Houston TX
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes
Georges Claude - Paris

C23C 1836

220586

A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0. 1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer. Metal contamination levels of less than about 55 ppb of iron, 10 ppb of chromium, and 5 ppb of nickel by weight can be maintained in liquefied corrosive gasses stored for an extended period of time in the electroless nickel-phosphorus plated gas cylinder.

62639048, Jul 24, 2001

Oct 4, 2000

9/679090

Alan D. Zdunek - Chicago IL
Eugene A. Kernerman - Mt. Prospect IL
William Korzeniowski - Dayton NJ

Air Liquide America Corporation - Countryside IL
American Air Liquide Inc. - Houston TX
L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes
Georges Claude - Paris

F16K 1110

137375

A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0. 1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer. Metal contamination levels of less than about 55 ppb of iron, 10 ppb of chromium, and 5 ppb of nickel by weight can be maintained in liquefied corrosive gasses stored for an extended period of time in the electroless nickel-phosphorus plated gas cylinder.