MARIA MEDEIROS
Nursing at Creek Ln, Bristol, RI

6638369, Oct 28, 2003

May 7, 2002

10/143176

Wayne C. Tucker - Exeter RI
Maria G. Medeiros - Bristol RI
Richard Brown - Wakefield RI

The United States of America as represented by the Secretary of the Navy - Washington DC

C23C 2248

148247, 148243, 148273, 106 1411

A non-chromate conversion coating and method of applying same wherein the coating comprises a titanate, such as potassium titanate or sodium metatitanate, as a “drop-in replacement” for a chromate in an otherwise chromate-containing conversion coating.

6465124, Oct 15, 2002

Jul 28, 2000

09/632012

Maria G. Medeiros - Bristol RI
Eric G. Dow - Barrington RI
Russell R. Bessette - Mattapoisett MA

The United States of America as represented by the Secretary of the Navy - Washington DC

H01M 436

429105, 429101

The present invention relates to an improved magnesium semi-fuel cell which has a magnesium anode, a seawater/catholyte electrolyte, preferably containing acid to solubilize solid precipitates, and an electrocatalyst composed of palladium and iridium catalyzed onto carbon paper. The acid added to the electrolyte is preferably selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and mixtures thereof.

7513968, Apr 7, 2009

Jul 11, 2005

11/183310

Earl S. Nickerson - Little Compton RI, US
Maria G. Medeiros - Bristol RI, US
Wayne C. Tucker - Exeter RI, US
Russell R. Bessette - Mattapoisett MA, US

The United States of America as represented by the Secretary of the Navy - Washington DC

B29C 65/00, B44C 3/08, B32B 37/00, H01M 2/08

156152, 156219, 156290, 156291, 429 35

Using a ¼ inch end mill a grid pattern of one inch squares or lands separated by concave troughs or grooves 0. 025 inches deep is milled on to the surface of a one quarter inch thick magnesium plate. A conductive barrier such as a titanium foil is then laid over the magnesium plate, and is then pressed into the pattern with a one inch thick 80 durometer rubber sheet. Pressure of 250 pounds per square inch is then applied to the rubber to create indentations in the foil creating the same pattern as the one on the magnesium plate. The foil is then removed. An electrically conductive adhesive is then screen printed on the magnesium lands only, avoiding the grooves. The titanium foil is oriented to the pattern on the magnesium plate and mated to the magnesium plate by applying 200 pounds per square inch of pressure.

7195841, Mar 27, 2007

Jan 22, 2004

10/637081

Steven P. Tucker - Portsmouth RI, US
Maria G. Medeiros - Bristol RI, US
Eric G. Dow - Barrington RI, US

The United States of America represented by the Secretary of the Navy - Washington DC

H01M 4/36, H01M 4/48, H01M 6/20, H01M 6/30, H01M 6/34

429105, 429110, 429119, 429101

A system and a method of storage and dissolution of solid catholyte are provided. The system and the method employ a solid medium having a controlled surface from which solid catholyte particles suspended within a matrix of encapsulating species are dissolved and hydrolyzed producing hydrogen peroxide to be used in semi fuel cells of undersea vehicles. Encapsulating species are also dissolved and hydrolyzed rendering products completely usable in the semi fuel cell. Sodium peroxide is preferably used as the solid catholyte and potassium superoxide and/or sodium hydroxide are preferably used as encapsulating species.

6228527, May 8, 2001

Mar 2, 1999

9/267905

Maria G. Medeiros - Bristol RI
Steven P. Tucker - Portsmouth RI
James M. Cichon - Norwood MA
Russell R. Bessette - Mattapoisett MA
Dwayne W. Dischert - Newport RI

The United States of America as represented by the Secretary of the Navy - Washington DC

H01M 634, H01M 630

429119

In accordance with the present invention, an electrochemical system is provided which comprises a plurality of cells, the cells being formed by spaced apart bipolar electrodes. Each of the electrodes is formed by an anode portion formed from a magnesium containing material and an electrocatalytic material joined to a surface of the anode. The electrodes are spaced such that the anode portion of one electrode faces the electrocatalytic material of the adjacent electrode. The electrochemical system also comprises a manifold system for introducing a seawater-catholyte solution into the spaces between the electrodes. An electrical connection is provided across the cells so as to initiate the reduction of the seawater-catholyte solution at the electrodes and to create electrical power. In a preferred embodiment, the seawater-catholyte solution is a seawater-hydrogen peroxide or seawater-sodium hypochlorite solution. A process for generating electrical power using the electrochemical system of the present invention is also described.

5296429, Mar 22, 1994

Aug 21, 1992

7/931467

Catherine L. Marsh - Exeter RI
Gerald L. Seebach - Lexington KY
John W. Van Zee - Columbia SC
Russell R. Bessette - Mattapoissett MA
Hubert G. Meunier - Holden MA
Maria G. Medeiros - Bristol RI

The United States of America as represented by the Secretary of the Navy - Washington DC

H01M 488, B05D 512, B01J 2340

502101

An electrocatalytic cathode that will allow hydrogen peroxide, H. sub. 2 O. 2, to behave electrochemically within an Al-H. sub. 2 O. sub. 2 battery system is provided. The electrocatalytic cathode is comprised of nickel specially coated with one or a combination of the following six metals: platinum, ruthenium, rhodium, osmium, palladium, and iridium. The use of nickel coated with the appropriate combination of metals reduces the problems of excessive peroxide decomposition, thereby producing a battery that can operate efficiently by producing a high voltage at a high current density. The electrocatalytic cathode is produced by pretreating a nickel electrode with a hydrochloric acid bath and then by applying the metal coating by plating methods.

7101808, Sep 5, 2006

Oct 6, 2003

10/679683

Wayne C. Tucker - Exeter RI, US
Maria G. Medeiros - Bristol RI, US
Richard Brown - Wakefield RI, US

The United States of America as represented by the Secretary of the Navy - Washington DC

H01L 21/302, C09K 13/00, C09K 13/06

438745, 252 791, 252 794

Non-chromate solutions for treating and/or etching metals, particularly, aluminum, aluminum alloys, steel and titanium, and method of applying same wherein the solutions include either a titanate or titanium dioxide as a “drop-in replacement” for a chromium-containing compound in a metal surface etching solution that otherwise would contain chromium.

7052741, May 30, 2006

May 18, 2004

10/847765

Maria G. Medeiros - Bristol RI, US
Eric G. Dow - Barrington RI, US
Russell R. Bessette - Mattapoisett MA, US
Craig M. Deschenes - Somerset MA, US
Christopher N. Lafratta - Brighton MA, US
Armand F. Lewis - Mattapoisett MA, US
Yong K. Kim - Dartmouth MA, US

The United States of America as represented by the Secretary of the Navy - Washington DC

B05D 1/14, B05D 1/38

427464, 427462, 427470, 427115

A method is provided for the fabrication of a fibrous structure. Fibers are deposited in a hopper connected to an electrode. A mesh covers the hopper opening and the hopper is inverted and suspended over an adhesive coated substrate. An electric field is generated between the hopper and the substrate while the hopper is simultaneously shaken. As a result, fibers fall through the mesh, aligned along the electric field lines, travel through the electric field, and are coupled on one end thereof to the adhesive.

7022254, Apr 4, 2006

Oct 6, 2003

10/679682

Wayne C. Tucker - Exeter RI, US
Maria G. Medeiros - Bristol RI, US
Richard Brown - Wakefield RI, US

The United States of America as represented by the Secretary of the Navy - Washington DC

C09K 13/00

252 791, 252 792, 252 793, 438745, 216100, 216102, 216105, 216108, 216109

Non-chromate solutions for treating and/or etching metals, particularly, aluminum, aluminum alloys, steel and titanium, and method of applying same wherein the solutions include either a titanate or titanium dioxide as a “drop-in replacement” for a chromium-containing compound in a metal surface etching solution that otherwise would contain chromium.

2009026, Oct 29, 2009

Apr 10, 2009

12/386184

Charles J. Patrissi - Newport RI, US
Maria G. Medeiros - Bristol RI, US
Louis G. Carreiro - Westport MA, US
Steven P. Tucker - Portsmouth RI, US
Russell R. Bessette - Mattapoisett MA, US
Craig M. Deschenes - Somerset MA, US

C25D 5/34, C25D 5/48, C23C 28/00

205183

A bipolar electrode fabricated with a combination of materials that will physically separate the catholyte from the metal anode of the electrode while providing high electrical conductivity between the metal anode and the catalyst cathode. This is accomplished by layering the catalyst cathode over a composite of conductive adhesive and conductive foil that is then affixed to the metal anode.