Richard S Bruski

US Patent:

7608302, Oct 27, 2009

Filed:

Jul 13, 2007

Appl. No.:

11/827693

Inventors:

Todd F. Bischoff - Veradale WA, US
Richard S. Bruski - Spokane WA, US
Robert B. Wagstaff - Greenacres WA, US

Assignee:

Novelis Inc. - Toronto, Ontario

International Classification:

B05D 3/02

US Classification:

4273977

Abstract:

A method is described for improving resistance to chemical attack by aluminum or magnesium in refractory components. In one method, a slurry is formed comprising calcium silicate-containing refractory material and a barium-containing compound. This slurry is placed in a mold, then dewatered to form a component which is hydrothermally processed to form a final component. In a second procedure, a silica-containing porous refractory component is impregnated with an aqueous solution of an oxide or hydroxide of barium or strontium and thereafter dried in air.

US Patent:

20080163999, Jul 10, 2008

Filed:

Dec 18, 2007

Appl. No.:

12/002989

Inventors:

Jason D. Hymas - Spokane Valley WA, US
Eric W. Reeves - Hayden ID, US
Richard Scott Bruski - Spokane WA, US

International Classification:

B22D 35/06
F24D 5/02

US Classification:

164 1, 266200, 237 81

Abstract:

The invention relates to a method of and apparatus for providing heat to a molten metal flowing through metal-conveying apparatus. The apparatus includes a molten metal-conveying channel, an enclosure for receiving and circulating combustion gases while preventing entry of the gases into said channel, a heat-conductive body of material separating at least part of the channel from the enclosure; and a combustion device for generating combustion gases and delivering the gases to the enclosure. Heat from the combustion gases is used to heat molten metal held in the channel, while preventing contact between the combustion gases and the molten metal. The body of material may be a trough used to form the channel, a tube for conveying the molten metal, or a tube acting as the enclosure, or the like.

US Patent:

20110139797, Jun 16, 2011

Filed:

Dec 8, 2010

Appl. No.:

12/928356

Inventors:

Eric W. Reeves - Hayden Lake ID, US
James E. Boorman - Greenacres WA, US
Richard Scott Bruski - Spokane WA, US

International Classification:

B65D 8/04
C04B 28/24

US Classification:

220668, 264219

Abstract:

Exemplary embodiments of the invention provide a vessel for containing or conveying molten metal therein. At least part of the outer surface of the vessel incorporates a web of metal wires embedded in the surface, the wires being mutually overlaid with openings formed therebetween. The refractory material penetrates into the openings. The web may comprise woven metal wires or non-woven wires or both. The web imparts resistance to cracking (or containment of cracks, once formed) and/or resistance to molten metal leakage if cracks develop. The invention also provides metal containment structures containing such vessels, and methods of producing the same.

US Patent:

50763407, Dec 31, 1991

Filed:

Apr 30, 1990

Appl. No.:

7/516341

Inventors:

Richard S. Bruski - Encinitas CA
Larry G. Hudson - Carlsbad CA
Michael D. Skibo - Leucadia CA

Assignee:

Dural Aluminum Composites Corp. - San Diego CA

International Classification:

B22D 1914

US Classification:

164 97

Abstract:

A cast composite material is prepared from a modified aluminum-containing matrix and reinforcement particles mixed into the matrix. From about 15 to about 130, preferably from about 20 to about 50, parts per million of an element, preferably beryllium, that forms a more stable oxide than magnesium oxide is included in the matrix alloy. The stable-oxide-forming element reduces the amount and thickness of the aluminum oxide and other oxides formed at the surface of the melt, which otherwise may be mixed into the melt to cause microstructural irregularities in the matrix of the cast composite material.

US Patent:

62503634, Jun 26, 2001

Filed:

Aug 7, 1998

Appl. No.:

9/131139

Inventors:

Don Doutre - Kingston, CA
Gary Hay - Ontario, CA
Peter Wales - Kingston, CA
Richard S. Bruski - Northville MI

Assignee:

Alcan International Ltd. - Monreal

International Classification:

B22D 1914
B22D 2306
B22D 2702

US Classification:

164 97

Abstract:

A composite material is rapidly melted by furnishing a pre-wetted composite material in the form of granules, placing the granules into an induction coil, and powering the induction heater to melt the metal matrix portion of the granules to form a molten mixture. High power inputs to the induction coil may be used, so that the granules are rapidly heated to their melting point and to temperatures above the melting point, from which the molten mixture may be cast. Because of the rapid heating, otherwise-reactive composite materials may be prepared by melting in air.

US Patent:

55314252, Jul 2, 1996

Filed:

Feb 7, 1994

Appl. No.:

8/192950

Inventors:

Michael D. Skibo - Leucadia CA
David M. Schuster - LaJolla CA
Richard S. Bruski - Encinitas CA

Assignee:

Alcan Aluminum Corporation - Cleveland OH

International Classification:

B22B 1100

US Classification:

266208

Abstract:

A method and apparatus for preparing a continuous flow of castable composite materials of nonmetallic particles in a metallic matrix, wherein particles are mixed into a molten metallic alloy to wet the molten metal to the particles, and the particles and metal are sheared past each other to promote wetting of the particles by the metal. The mixing occurs while minimizing the introduction of gas into the mixture, and while minimizing the retention of gas at the particle-liquid interface. Mixing is done at or below a maximum temperature whereat the particles do not substantially chemically degrade in the molten metal during the time required for processing, and casting is done at a temperature sufficiently high that there is no solid metal present in the melt.

US Patent:

60155280, Jan 18, 2000

Filed:

Mar 4, 1996

Appl. No.:

8/610671

Inventors:

Richard S. Bruski - Encinitas CA
Larry G. Hudson - Pulaski NY
Iljoon Jin - Kingston, CA
David J. Lloyd - Kingston, CA
Michael D. Skibo - Leucadia CA

Assignee:

Alcan International Limited - Montreal

International Classification:

C22C 110
B22D 1100
B22D 1914

US Classification:

266207

Abstract:

A composite material mixture of free flowing reinforcement particles in a molten metal is solidified at a cooling rate greater than about 15. degree. C. per second between the liquidus and solidus temperatures of the matrix alloy. This high cooling rate imparts a homogeneous structure to the solid composite material. Care is taken to avoid the introduction of gas bubbles into the molten composite material while the mixture is stirred to prevent segregation of the particles. For viscous melts, an artificial surface layer such as a fiberglass blanket may be used to prevent entrapment of bubbles during pre-casting stirring. Additionally, gas bubbles are removed from the molten mixture by filtering and skimming.

US Patent:

49434900, Jul 24, 1990

Filed:

Aug 7, 1989

Appl. No.:

7/391087

Inventors:

Richard S. Bruski - Encinitas CA
Larry G. Hudson - Carlsbad CA
Michael D. Skibo - Leucadia CA

Assignee:

Dural Aluminum Composites Corp. - San Diego CA

International Classification:

C22C 2100

US Classification:

428614

Abstract:

A cast composite material is prepared from a modified aluminum-containing matrix and reinforcement particles mixed into the matrix. From about 15 to about 130, preferably from about 20 to about 50, parts per million of an element, preferably beryllium, that forms a more stable oxide than magnesium oxide is included in the matrix alloy. The stable-oxide-forming element reduces the amount and thickness of the aluminum oxide and other oxides formed at the surface of the melt, which otherwise may be mixed into the melt to cause microstructural irregularities in the matrix of the cast composite material.