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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7794864 | Fuel cell module, fuel cell, and method of manufacturing fuel cell module For the purpose of providing a fuel cell module having a small number of molding processes and favorable productivity, the edge of a polymer electrolyte membrane (44) exposed at the outer periphery of an electrode section, which is formed by providing an anod... | 09/14/2010 |
| 7749636 | Fuel cell arrangement and method of manufacturing a fuel cell arrangement The present invention relates to a fuel cell arrangement, containing at least one bipolar plate layer (1) and an bonding partner—preferably an membrane electrode assembly (MEA) (5), wherein the bonding partner is bonded onto the bipolar plate layer (... | 07/06/2010 |
| 7749635 | Gasket with sheet-shaped member and a gasket mainbody mounted to a mounting member In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an hard disc drive, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separato... | 07/06/2010 |
| 7732083 | Gas diffusion layer incorporating a gasket A gas diffusion layer incorporating a gasket (GIG) is described along with assemblies incorporating the GIG subassembly. Processes for making the GIG and membrane electrode assemblies (MEAs) incorporating the GIG are also described. A GIG subassembly includes a gas ... | 06/08/2010 |
| 7732082 | Fuel cell module A fuel cell module, wherein slopes of a same angle θ relative to a bottom face are formed on both side faces to form a recessed groove in a tapered shape. Since the angle θ is provided to the side faces of the recessed groove, the exhaustion of gases from the accu... | 06/08/2010 |
| 7727658 | Method for joining laser transmitting resin member and porous member, method for joining thermoplastic resin, and fuel cell A method for joining a resin member and a porous member can prevent peeling in a specified direction. When a thermoplastic laser transmitting resin member and a porous member are joined, the laser transmitting resin layer and the porous member are laminated, and a l... | 06/01/2010 |
| 7713646 | Fuel cell unit and composite block of fuel cells In order to provide a fuel cell unit, comprising a housing which limits at least one gas chamber and has a gas opening in a first housing wall and a gas opening in a second housing wall located opposite the first housing wall, the housing of which has an adequate de... | 05/11/2010 |
| 7713647 | Seal and fuel cell comprising same affixed on the bipolar plates The invention mainly concerns a fuel cell seal (52) designed to be affixed on a bipolar plate (22) in the form of a membrane whereof the profile corresponds approximately to the peripheral frame (50) of the bipolar plate (22) and comprisi... | 05/11/2010 |
| 7695846 | Membrane based electrochemical cell stacks The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more composite membrane electrode assemblies which... | 04/13/2010 |
| 7687181 | Channel-based electrochemical cassettes The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more bipolar plates which have one or two reactant... | 03/30/2010 |
| 7678489 | Process for producing a fuel cell separator The present invention provides a separator for fuel cell, which is a molded article including a resin and a conductive filler, wherein a contact angle of water on a surface of the separator for fuel cell is from 20 to 85°, and a process for producing the separator ... | 03/16/2010 |
| 7615307 | Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the i... | 11/10/2009 |
| 7579102 | Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the i... | 08/25/2009 |
| 7553578 | Fuel cell membrane electrode assembly with sealing surfaces The present invention provides a method of making a gasketed fuel cell membrane electrode assembly by simultaneously binding together the parts of the MEA, impregnating uncured elastomeric gasket material into the outer edge portions of each fluid transport layer, a... | 06/30/2009 |
| 7531265 | Fuel cell A fuel cell includes a membrane electrode assembly and first and second metal separators. The first metal separator has first outer protrusions provided outside an oxygen-containing gas flow field. The second metal separator has second outer protrusions provided out... | 05/12/2009 |
| 7504173 | Constituent part for fuel cell In order to provide a constituting part for a fuel battery in which a number of steps of assembling the constituting parts for the fuel battery can be reduced, and in which the replacing property and the maintenance property of fuel battery cell parts can be improve... | 03/17/2009 |
| 7504174 | Unitized membrane electrode assembly and process for its preparation The invention provides a unitized membrane electrode assembly having a first gas diffusion backing having sealing edges; a polymer membrane; a second gas diffusion backing having sealing edges; a first electrocatalyst coating composition present at the interface of ... | 03/17/2009 |
| 7498096 | Seal arrangement for fuel cells A seal arrangement for a fuel cell structure is provided which includes a seal portion in the form of a gasket between adjacent fuel cells in a stack of fuel cells. In the seal arrangement, a portion of the fuel cell structure that overlaps the gasket as viewed in a... | 03/03/2009 |
| 7482086 | Electrochemical polymer electrolyte membrane cell stacks and manufacturing methods thereof An improved electrochemical polymer electrolyte membrane cell stack is provided that includes one or more individual fuel cell cassettes, each fuel cell cassette having at least one membrane electrode assembly, fuel flow field and oxidant flow field. Within each fue... | 01/27/2009 |
| 7459230 | Membrane electrode assembly for fuel cell A membrane electrode assembly for a fuel cell includes an electrolyte membrane having ionic conductivity and a pair of gas diffusion electrodes having gas diffusivity and electric conductivity. Each of the pair of gas diffusion electrodes is bonded to one side or th... | 12/02/2008 |
| 7452623 | Electrochemical cell bipolar plate with sealing feature A bipolar plate for an electrochemical cell having a first side, a second side, and a sealing region is disclosed. The first side has a first fluid flow region bordered by a first sealing region, and the second side has a second fluid flow region bordered by a secon... | 11/18/2008 |
| 7445865 | Fuel cell A fuel cell includes a membrane electrode assembly, and first and second separators. A first insulating bushing is attached to a first positioning hole of a first separator, and a second insulating bushing is attached to a second positioning hole of the second separ... | 11/04/2008 |
| 7432007 | Molded fuel cell plates with seals A fuel cell unit incorporates a pair of plates; one plate an anode, the other a cathode. Respective anode and cathode plates are physically bonded together to form such pairs; wherein pluralities of the pairs are secured together to form commercially available fuel ... | 10/07/2008 |
| 7419738 | Module for a fuel cell arrangement comprising plates joined by a seal A module for a fuel cell arrangement having several stacked plates. At least two of the plates have a common seal element of polymer material which is injected onto the plates and by which the plates are at least partially joined to one another. The plates can be pr... | 09/02/2008 |
| 7416807 | Polymer electrolyte fuel cell A polymer electrolyte fuel cell comprises an electrolyte membrane-electrode assembly, a pair of conductive separator plates sandwiching the electrolyte membrane of the electrolyte membrane-electrode assembly, and a pair of sealing means sealing between the electrode... | 08/26/2008 |
| 7402357 | Gas-filled gasket for a solid-oxide fuel cell assembly In a solid-oxide fuel cell assembly, a sealing gasket is disposed between spaced, parallel components and includes a gas-filled pillow structure formed in the general shape of the manifold opening to be sealed. The gasket acts as a passive gas spring that responds w... | 07/22/2008 |
| 7396609 | Fuel cell and metal separator for fuel cell A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the fi... | 07/08/2008 |
| 7393607 | Fuel cell and fuel cell stack A fuel cell includes a membrane electrode assembly, and a first and second separators for sandwiching the membrane electrode assembly. The first separator has an oxygen-containing gas flow passage for allowing an oxygen-containing gas in a serpentine pattern to flow... | 07/01/2008 |
| 7393389 | Apparatus for seperation or synthesis of process substances An apparatus for separation or synthesis of process substances is configured with at least two cell stacks, within each of which there is arranged at least one large-area layer for the separation or synthesis and passages are formed for feeding and discharging at le... | 07/01/2008 |
| 7384703 | Fuel cell system First and second fuel cell stacks having a simple and compact structure are connected in parallel to each other to enable ensuring a desired electric power generating performance. The first and second fuel cell stacks have the same structure and are arranged in para... | 06/10/2008 |
| 7378177 | Electrochemical cell bipolar plate A bipolar plate for an electrochemical cell having a first layer, a second layer, and a third layer is disclosed. The first layer has a first plurality of through channels oriented in a first direction. The second layer has a second plurality of through channels ori... | 05/27/2008 |
| 7374837 | Liquid electrochemical cell stacks and manufacturing methods for same The present invention provides liquid electrolyte electrochemical cassettes and stacks thereof which are suitable for a use in a variety of electrochemical, ion exchange, and battery applications. The present invention also provides methods of manufacturing the liqu... | 05/20/2008 |
| 7354675 | Apparatus and method for maintaining compression of the active area in an electrochemical cell An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is an ... | 04/08/2008 |
| 7348092 | Apparatus for and method of forming seals in fuel cells and fuel stacks A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various ... | 03/25/2008 |
| 7326485 | Fuel cell with a seal tightly in contact with an electrode for preventing leakage of a reactant gas A fuel cell includes a membrane electrode assembly and first and second separators for sandwiching the membrane electrode assembly. A serpentine oxygen-containing gas flow field is formed on a surface of the first separator. A seal member is provided around the oxyg... | 02/05/2008 |
| 7316855 | Fuel cell assembly for portable electronic device and interface, control, and regulator circuit for fuel cell powered electronic device A fuel cell assembly including a membrane electrode assembly, an anode plate, a cathode plate, a removable fuel cartridge, and a fuel delivery system. The assembly includes an anode, a cathode, and a polymer electrolyte membrane having a fuel side and an oxygen side... | 01/08/2008 |
| 7311990 | Form-in-place fastening for fuel cell assemblies A fuel cell sub-assembly includes first and second flow field plates each comprising several fastener apertures defined at a number of fastening locations. A membrane electrode assembly is situated between the first and second flow field plates and includes several ... | 12/25/2007 |
| 7306875 | Bipolar plate for a fuel cell The invention relates to a bipolar plate for a fuel cell, the plate being made up of two half-plates assembled one against the other via their inside faces, each half-plate including in its inside face at least a first groove and a second groove that are spaced apar... | 12/11/2007 |
| 7306864 | One-shot fabrication of membrane-based electrochemical cell stacks The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical and ion exchange applications. The present invention also provides methods of manufacturing the membrane cassettes and stacks of the inv... | 12/11/2007 |
| 7306872 | Modular fuel cell cassette for forming a solid-oxide fuel cell stack A modular fuel cell cassette for use in assembling a fuel cell stack comprising a metal separator plate and a metal cell-mounting plate joined at their edges to form a hollow cassette. A fuel cell subassembly is attached to the mounting plate and extends through an ... | 12/11/2007 |
