HOWARD GERBER, RPH
Pharmacy at Sheridan Rd, Chicago, IL

6037011, Mar 14, 2000

Nov 4, 1997

8/964428

James J. Deegan - Flossmoor IL
William A. Carter - Munster IN
Howard L. Gerber - Lincolnwood IL
Philip G. Martin - Gary IN
Ismael G. Saucedo - Valparaiso IN
Joseph W. Sliwa - Hammond IN
Anatoly F. Kolesnichenko - Merrillville IN

Inland Steel Company - Chicago IL

B05D 118, B05D 310

427433

A hot dip coating system comprises a bath of molten coating metal contained in a vessel having a strip passage opening located below the top surface of the bath. A metal strip is directed along a path extending through the strip passage opening and through the bath of molten coating metal, to coat the strip. A plug composed of solidified coating metal surrounds the strip downstream of the strip passage opening and is substantially stationary relative to the moving strip. The plug prevents escape of molten coating metal from the bath through the strip passage opening while permitting the strip to move along its path. Expedients are provided to chill the coating metal downstream of the strip passage opening to form and maintain the plug and to heat that part of the molten metal coating bath which is immediately downstream of the plug.

5487421, Jan 30, 1996

Jun 22, 1994

8/263874

Howard L. Gerber - Chicago IL

Inland Steel Company - Chicago IL

B22D 1106, B22D 2702

164467

A strip casting apparatus comprises a pair of counter-rotating casting rolls having a vertically extending, arcuately tapering gap therebetween for containing a pool of molten metal. The gap has an open end near which is an electromagnetic dam for preventing the escape of molten metal through that open end. Various expedients are provided for improving the operation and efficiency of the dam. In one embodiment, projections of magnetic material extend from the dam in mutually overlapping relation with peripheral lips on the casting rolls. In another embodiment, the dam has a confining coil with a front surface (a) facing the open end of the gap and (b) having an arcuately tapering contour conforming to the contour of the gap. The electric current flowing through (i) the wide upper part of the confining coil's tapered front surface, facing the wide upper part of the molten metal pool, is greater than the current flowing through (ii) the narrow lowermost part of the confining coil's front surface, facing the narrow lower part of the molten metal pool.

5513692, May 7, 1996

Mar 31, 1994

8/220789

Howard L. Gerber - Chicago IL

Inland Steel Company - Chicago IL

B22D 1106, B22D 2702

164467

An electromagnetic confining apparatus prevents the escape of molten metal through the open end of a vertically extending gap between two horizontally extending members, such as two counter-rotating rolls of a continuous strip caster. The molten metal is located between the two members. The apparatus includes a vertically disposed coil through which flows a time-varying electric current to generate a first horizontal magnetic field adjacent the open end of the gap. A time-varying conduction current is directed through the pool of molten metal adjacent the open end of the gap, in a vertical direction opposite that of the current flow in the adjacent portion of the coil. The flow of conduction current through the molten metal pool generates a second horizontal magnetic field adjacent the open end of the gap and which augments the first horizontal magnetic field to provide a repulsive body pressure which urges the pool of molten metal inwardly away from the open end of the gap.

5562152, Oct 8, 1996

Aug 9, 1995

8/513076

Howard L. Gerber - Chicago IL
Ismael G. Saucedo - Valparaiso IN

Inland Steel Company - Chicago IL

B22D 1106, B22D 2702

164503

A strip casting apparatus comprises a pair of counter-rotating casting rolls having a vertically extending, arcuately tapering gap therebetween for containing a pool of molten metal. The gap has an open end near which is an electromagnetic dam for preventing the escape of molten metal through that open end. Various expedients are provided for improving the operation and efficiency of the dam. In one embodiment, projections of magnetic material extend from the dam in mutually overlapping relation with peripheral lips on the casting rolls. In another embodiment, the dam has a confining coil with a front surface (a) facing the open end of the gap and (b) having an arcuately tapering contour conforming to the contour of the gap. The electric current flowing through (i) the wide upper part of the confining coil's tapered front surface, facing the wide upper part of the molten metal pool, is greater than the current flowing through (ii) the narrow lowermost part of the confining coil's front surface, facing the narrow lower part of the molten metal pool.

5827576, Oct 27, 1998

Mar 21, 1997

8/822782

William A. Carter - Munster IN
John A. Tanski - Los Alamos NM
Ismael G. Saucedo - Valparaiso IN
Howard L. Gerber - Chicago IL

Inland Steel Company - Chicago IL

B05D 118

427436

A hot dip coating apparatus and method for coating a continuous steel strip, wire, or like continuous member with zinc, aluminum, tin, lead, or alloys of each. A molten coating bath is contained in a vessel having a bottom opening upwardly through which the steel member is directed. Magnetic containment devices located below the vessel's bottom opening prevent the escape of molten metal from the vessel through the opening. There are no guide rolls, or other rolls that act on the continuous steel member, in the bath.