1
Stewart C Jepson: Methods and apparatus for improved energy efficient control of an electric arc furnace fume extraction system. Air Liquide America, Linda K Russell, Christopher J Cronin, June 8, 2004: US06748004 (62 worldwide citation)

A fume extraction system includes a combustion zone coupled with an exhaust outlet of a furnace to receive an exhaust gas stream emerging from the furnace outlet during system operation, where the exhaust gas stream includes explosive gases that undergo combustion reactions within the combustion zon ...


2
G Robert Oslin, Stewart C Jepson: Gas combination oven. Delaware Capital Formation, Welsh & Katz, April 4, 1989: US04817582 (37 worldwide citation)

A gas-fired combination steam and dry oven has an oven cavity that is heated by heat exchange from one or more fire tubes and a boiler that is located outside the oven cavity and is heated by heat exchange from one or more other fire tubes. Both the oven and boiler fire tube heat exchangers employ n ...


3
Stewart C Jepson: Method and apparatus for efficient utilization of a cryogen for inert cover in metals melting furnaces. L&apos Air Liquide Societe&apos Anonyme a&apos Directoire et Conseil de Surveillance pour l&apos Etude et l&apos Exploitation des Procedes George Claude, Air Liquide America Corporation, Linda K Russell, December 10, 2002: US06491863 (4 worldwide citation)

Methods and apparatus for efficient utilization of a cryogen in inerting of solid and molten metals are presented. One method and apparatus of the invention includes providing a source of liquid cryogen; transporting the liquid cryogen through a conduit connected to the source of liquid cryogen to a ...


4
Stewart C Jepson: Methods and apparatus for improved energy efficient control of an electric arc furnace fume extraction system. Linda K Russell, Air Liquide, January 29, 2004: US20040017837-A1

A fume extraction system includes a combustion zone coupled with an exhaust outlet of a furnace to receive an exhaust gas stream emerging from the furnace outlet during system operation, where the exhaust gas stream includes explosive gases that undergo combustion reactions within the combustion zon ...


5
Stewart C Jepson: Method and appartus for efficient utilization of a cryogen for inert cover in metals melting furnaces. Air Liquide, June 13, 2002: US20020070488-A1

Methods and apparatus for efficient utilization of a cryogen in inerting of solid and molten metals are presented. One method and apparatus of the invention includes providing a source of liquid cryogen; transporting the liquid cryogen through a conduit connected to the source of liquid cryogen to a ...


6
Stewart C Jepson: Direct-Fired Furnace Utilizing an Inert Gas to Protect Products Being Thermally Treated in the Furnace. Air Liquide, Intellectual Property, March 20, 2008: US20080066834-A1

A heating system includes a furnace configured to receive a product to be thermally treated within the furnace, where the furnace includes at least one burner to generate combustion gases from a source of oxygen and a carbon-based fuel source provided to the burner, and the combustion gases provide ...


7
Terence D La Sorda, Stewart C Jepson: Vapor-Reinforced Expanding Volume of Gas to Minimize the Contamination of Products Treated in a Melting Furnace. Air Liquide Industrial US, Air Liquide, Intellectual Property, March 12, 2009: US20090064821-A1

Systems and corresponding methods are described herein that provide an effective inert blanket over a metal surface (hot solid (charge) metal or molten metal) in a container such as an induction furnace. The system includes a container of metal and a system configured to delivery biphasic inert cryo ...


8
Stewart C Jepson: Direct-Fired Furnace Utilizing An Inert Gas To Protect Products Being Thermally Treated In The Furnace. Air Liquide, Intellectual Property, May 28, 2009: US20090136884-A1

A heating system includes a furnace configured to receive a product to be thermally treated within the furnace, where the furnace includes at least one burner to generate combustion gases from a source of oxygen and a carbon-based fuel source provided to the burner, and the combustion gases provide ...