Nancy F Levoy

8003557, Aug 23, 2011

Jun 12, 2009

12/483788

Nancy P. Levoy - Acton MA, US
Edmund A. Cortellini - North Brookfield MA, US
Eric Jorge - Les Valayans, FR

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

C04B 35/567
C04B 35/597

501 92, 501 91, 501 961

A reaction sintered silicon carbide-based product, including a silicon carbide component, a bond component, wherein the bond component includes silicon oxynitride in excess of any silicon nitride of the bond component, and at least one boron component residual to an amount present prior to reaction sintering to cause increased resistance of the reaction sintered silicon carbide-based product to volume change under oxidative stress, and methods of making the same.

52737110, Dec 28, 1993

Oct 8, 1991

7/772848

William T. Nachtrab - Maynard MA
Nancy F. Levoy - Acton MA

Nuclear Metals, Inc. - Concord MA

C22C 4300

420 3

A high strength and ductile depleted uranium alloy including two or three alloying elements, two of which are molybdenum and titanium, in which the total weight percent of all of the alloying elements makes up no more than 2% of the alloy weight, in which there is from 0. 75 to 1. 50 weight % molybdenum, and 0. 30 to 0. 70 weight % titanium.

54177782, May 23, 1995

Jan 26, 1994

8/187684

William T. Nachtrab - Maynard MA
Nancy F. Levoy - Acton MA
Raymond L. White - Medford MA

Nuclear Metals, Inc. - Concord MA

C22C 2500

148400

A light weight, high strength quaternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, and from approximately 0. 2 to 5 weight % germanium and from 0. 2 to 4. 25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0. 1 to 5. 0 weight % of the alloy to increase the alloy strength.

54219167, Jun 6, 1995

Sep 3, 1993

8/117218

William T. Nachtrab - Maynard MA
Nancy F. Levoy - Acton MA
Kevin R. Raftery - Boxborough MA

Nuclear Metals, Inc. - Concord MA

C22C 2500

148400

A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0. 5 to 4 weight % silicon and from 0. 2 to 4. 25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0. 1 to 0. 75 weight % of the alloy to increase the alloy strength.

56037805, Feb 18, 1997

Mar 10, 1995

8/402515

William T. Nachtrab - Maynard MA
Nancy F. Levoy - Acton MA
Kevin R. Raftery - Boxborough MA

Nuclear Metals, Inc. - Concord MA

C22C 2500

148400

A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0. 5 to 4 weight % silicon and from 0. 2 to 4. 25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0. 1 to 2. 0 weight % of the alloy to increase the alloy strength.

20180105467, Apr 19, 2018

Jul 31, 2017

15/665002

- Worcester MA, US
Edmund A. Cortellini - North Brookfield MA, US
Hansong Huang - Ashland MA, US
Melanie Kuhn - Cambridge MA, US
Nancy F. Levoy - Concord MA, US
Wesley S. Towle - North Grosvenordale CT, US

C04B 35/106

A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.

20160347664, Dec 1, 2016

May 27, 2016

15/167634

- Worcester MA, US
Edmund A. CORTELLINI - North Brookfield MA, US
Hansong HUANG - Ashland MA, US
Melanie KUHN - Cambridge MA, US
Nancy F. LEVOY - Concord MA, US
Wesley S. TOWLE - North Grosvenordale CT, US

C04B 35/106

A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.