John C Paddock

US Patent:

60174862, Jan 25, 2000

Filed:

Apr 23, 1998

Appl. No.:

9/065298

Inventors:

David J. Diederich - Avon Lake OH
John C. Paddock - Avon Lake OH
Ralph Dybiec - North Royalton OH
Donald E. Kocka - Broadview Heights OH
Thomas F. Bearding - North Ridgeville OH

Assignee:

USS/Kobe Steel Company - Loraine OH

International Classification:

C21B 700
C21B 722

US Classification:

266142

Abstract:

A comprehensive fume collection system, particularly adapted for the collection of lead-containing fumes or gases typically emitted during the manufacture of leaded steel, is disclosed. The preferred fume collection system comprises four sections, each serving a particular portion of the steelmaking process--(i) a casting floor fume collection system, (ii) a ladle slag dumping fume collection system, (iii) a tundish cooling fume collection system, and (iv) a torch cutting fume collection system.

US Patent:

60714670, Jun 6, 2000

Filed:

Mar 13, 1998

Appl. No.:

9/039034

Inventors:

John Paddock - Avon Lake OH
Fred H. Vandersluis - Vermilion OH
David J. Diederich - Avon Lake OH

Assignee:

USS/Kobe Steel Company - Lorain OH

International Classification:

C21C 540

US Classification:

266158

Abstract:

An apparatus and technique for collecting fumes from a metallurgical vessel such as a ladle are disclosed. The apparatus and technique are particularly well suited for collecting fumes during a cleanout operation of one or more discharge ports along the bottom of the vessel when the vessel is inverted on its side.

US Patent:

60774738, Jun 20, 2000

Filed:

May 7, 1998

Appl. No.:

9/074140

Inventors:

David J. Diederich - Avon Lake OH
John C. Paddock - Avon Lake OH
Earl A. Burkey - Lorain OH
Ralph J. Dybiec - North Royalton OH

Assignee:

USS/Kobe Steel Company - Lorain OH

International Classification:

B23K 700
C21C 540

US Classification:

266 48

Abstract:

A torch cutting and fume collecting enclosure is disclosed that is particularly adapted for the collection of lead-containing fumes and gases emitted during cutting of steel strands. The enclosure comprises a plurality of walls and two flexible barriers disposed on opposite ends of the enclosure, one at a receiving end, and the other at an output end of the enclosure. The enclosure further comprises a unique air handling system comprising one or more collector hoods, ducts and plenums for collecting and moving air and other gas flows from the enclosure for subsequent treatment and/or discharge. The air handling system utilizes a unique tapered configuration for one or more plenums that reduces the tendency for particulates to separate from an air or gas flow.

US Patent:

47114290, Dec 8, 1987

Filed:

Aug 29, 1986

Appl. No.:

6/901843

Inventors:

David J. Diederich - Lorain OH
John C. Paddock - Lorain OH

Assignee:

USX Corporation - Pittsburgh PA

International Classification:

B22D 4108

US Classification:

266 44

Abstract:

A tundish is provided with a mixing zone below an entry station where a stream of molten metal from a ladle enters the tundish. The mixing zone utilizes the force from the ladle stream to create sufficient turbulence for mixing alloying elements, particularly alloying elements such as lead having density greater than that of the molten metal with the metal in the tundish. The invention also includes a process for uniformly mixing alloying element with molten metal in the tundish. The process is particularly suited to making lead-bearing free machining steels on a continuous caster.

US Patent:

59937270, Nov 30, 1999

Filed:

Apr 23, 1998

Appl. No.:

9/065804

Inventors:

David J. Diederich - Avon Lake OH
John C. Paddock - Avon Lake OH
Kenneth K. Krol - Lorain OH
Ralph Dybiec - North Royalton OH

Assignee:

USS/KOBE Steel Company - Lorain OH

International Classification:

C21B 1300

US Classification:

266 44

Abstract:

A metallurgical vessel cover having integral fume collection provisions is disclosed. The cover features a plurality of inlet openings defined about the perimeter of the cover that direct fumes or other gases residing around the exterior of the cover, through the interior of the cover, and to a single collection region. There, the fumes or gases are discharged through a shroud, which preferably is connected to an attachable venting duct. The cover also features an internal configuration for reducing heat transfer through the cover.

US Patent:

60369140, Mar 14, 2000

Filed:

May 8, 1998

Appl. No.:

9/074797

Inventors:

David J. Diederich - Avon Lake OH
John C. Paddock - Avon Lake OH
Thomas F. Bernarding - North Ridgeville OH
Donald M. Watkins - Beloit OH

Assignee:

USS/KOBE Steel Company - Lorain OH

International Classification:

C21B 700

US Classification:

266142

Abstract:

An improved dumping bay particularly adapted for preventing the escape of hazardous fumes into other areas of a facility is disclosed. The dumping bay is fully enclosed and utilizes a unique air flow routing technique for collecting fumes, such as from a ladle during a slag dumping operation.

US Patent:

60834536, Jul 4, 2000

Filed:

Mar 2, 1998

Appl. No.:

9/033127

Inventors:

David J. Diederich - Avon Lake OH
John C. Paddock - Avon Lake OH
George R. Petrilla - Avon Lake OH
Donald K. Mounsey - Amherst OH

Assignee:

USS/KOBE Steel Company - Lorain OH

International Classification:

C21B 722

US Classification:

266158

Abstract:

Disclosed is a tundish assembly having fume collection provisions. The tundish assembly includes a tundish, a tundish cover, and a tundish hood. The hood has provisions for connecting the assembly to a vacuum source or other air moving means to thereby draw fumes or gases from the interior of the tundish out through the hood.