Carleton Life Support Systems Inc.

Litton Systems, Inc.

Northrop Grumman Systems Corporation

Scott R Sehlin

Russell F Hart

Victor P Crome

Zhonglin Wu

Courtney Joseph Monzyk

Vincent L Sprenkle

Tuan Q Cao

Gary Neal Byrd

Timothy Raleigh

Lyle Berkenbosch

Timothy C Phillis

Craig L Schledewitz

Deno Georgaras

Mike E Friestad

Deno K Georgaras

A mixed conducting ceramic element comprises a plurality of tubes each having interior and exterior surfaces, a closed end and an open end. A tube support member receives the open ends of the tubes. The ceramic element has a general composition of AA'A&#x2033;BB&#x2032;B&#x2033;O, where A, A&#x2032; and A&#x2033; are selected from Group II elements or the Lanthanoids, and B, B&#x2032; and B&#x2033; are selected from the d-block transition metals, and wherein 0&#x3c;x&#x2266;1, 0&#x3c;x&#x2032;&#x2266;1, 0&#x3c;x&#x2033;&#x2266;1, 0&#x3c;y&#x2266;1, 0&#x3c;y&#x2032;&#x2266;1, 0&#x3c;y&#x2033;&#x2266;1, x+x&#x2032;+x&#x2033;&#x2248;1, y+y&#x2032;+y&#x2033;&#x2248;1, and z is selected so that the resultant composition is charge neutral. The ceramic element can be a composite consisting of two or more component materials, wherein one component is predominantly an electronic conductor and another is predominantly an ionic conductor. The ceramic element may also be a composite material containing at least one component material having a chemical composition of AA&#x2032;A&#x2033;BB&#x2032;B&#x2033;O.

Pressure driven ceramic oxygen generation system with integrated manifold and tubes

An electronic controller () controls the operation of an electrochemical oxygen generating system () producing a desired gas. The product gas is fed to a storage unit () or a regulator () and pulsing valve () controlling the gas flow to a user. A two-stage system () combines a low pressureand a high pressure () gas generating subsystems. The low pressure subsystem () uses IMAT's () to pump oxygen from ambient air to generate a low-pressure. The high pressure subsystem () uses IMAT's () to pump oxygen to high-pressure oxygen storage devices ().

Oxygen generator with storage and conservation modes

Particle migration, such as silver electro-migration, on a flat ceramic surface is effectively eliminated by an upward vertical barrier formed on the surface or a groove formed in the surface between two silver conductors.

Buffer zone for the prevention of metal migration

A method of manufacturing a thin film electrochemical apparatus is disclosed. A near net shape ceramic element is molded including a planar base region and a plurality of tubular regions. The planar base region is infiltrated with a non-conductive material. Each of the tubular regions is infiltrated with a porous conductive material. A porous catalytic electrode material is applied onto the infiltrated regions to form one of a cathodic and anodic surface. A ceramic electrolyte coating is deposited onto the porous catalytic electrode material. A porous catalytic electrode material is applied onto the deposited ceramic electrolyte coating. A porous conductive material is deposited onto the porous catalytic electrode to form the other of the cathodic and anodic surface.

Thin film modular electrochemical product and method of manufacture thereof

An electrochemical device () for generating a desired gas of the type includes an ionically conductive electrolyte layer (), a porous electrode layer (), and a current collector layer () that has a high electrical conductivity and is porous to a desired gas () generated by the electrochemical device (). The current collector layer () is substantially formed as a film comprised of a layer of spherical refractory material objects () having a conductive coating () of a precious metal. The coated spherical objects () have a desired diameter () making them suitable for forming into the film.

Oxygen permeable electrode system

A porous ceramic substrate structure () having an interior portion () formed with an outer surface () is porous to at least one selected gas (). A first ceramic coating layer () is applied to the outer surface () of the ceramic substrate structure () in a suspension state. The first ceramic coating suspension () has a desired level of viscosity for application to the substrate and is formed with a ceramic electrolyte powder and at least one organic additive. A second ceramic coating layer () is applied to the outer surface () following application of the first coating (). The second coating () is initially applied after the first coating () and in a suspension state. The ceramic layers (and) substantially prevent gas leakage through the outer surface ().

Leakage free ceramic films for porous surfaces

An oven insert ( ) for a gas generating system of the type that includes heating elements, heat exchanger, a gas generating module ( ), an air inlet, and a product gas outlet, includes a furnace enclosure member formed with a plurality of interior chambers. The interior chambers ( ) are adapted for holding at least one gas generating module ( ). The interior chambers ( ) each have an opening ( ) formed an exterior face ( ) of the furnace enclosure member ( ). The openings are spaced along a central axis ( ) of the face ( ) of the furnace enclosure member ( ).

Modular ceramic oxygen system

Thin film modular electrochemical apparatus and method of manufacture therefor

This invention relates to devices for separating oxygen from more complex gasses such as air which contains oxygen, and delivering the separated-oxygen at an elevated pressure for use immediately, or for storage and use later. More particularly, the invention relates to solid state electrochemical devices for separating oxygen from more complex gasses to produce the desired oxygen and delivering the oxygen at elevated pressures up to and exceeding 2000 psig.

Electrochemical oxygen generating system

A ceramic element is provided which can be injection molded from an electrolyte and a binder. The ceramic element includes a tube support portion and a plurality of tubes extending from the tube support portion. The plurality of tubes are arranged in rows and columns. A plurality of vias extend from one surface of the tube support portion to an opposite surface of the tube support portion. The ceramic element is coated with an electrically conductive coating and a current collector coating. The vias are coated with the electrically conductive coating and plugged. After the coatings are removed in selected areas of the ceramic element, the tubes of the ceramic element form a series-parallel array because tubes in the same column are connected in parallel electrically and tubes in adjacent rows are connected in series electrically. Two ceramic elements are sealed together to form a modular electrochemical device. The electrochemical device can be either an oxygen generator or a fuel cell. Oxygen generating capacity can be increased by manifolding together two or more modular oxygen generators.

Growing community of inventors

Bettendorf, IA, United States of America

Scott R Sehlin