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| Number | Title | Issue Date |
| 8057646 | Electrolyser and components therefor The present invention is directed to cell plates for an electrolyser module and to an electrolyser module incorporating the plates. The plates comprise an electrolysis chamber opening, at least one degassing chamber opening, and at least one gas-liquid conduit openi... | 11/15/2011 |
| 7425832 | System and method for measuring internal resistance of electrochemical devices A method and system are provided for measuring impedance and voltage characteristics of individual cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. The electrochemical system comprises a plurality of cells; a measuring device ... | 09/16/2008 |
| 7425379 | Passive electrode blanketing in a fuel cell A fuel cell module is provided having a fuel cell stack, a parasitic load connectable across the electrodes, and a reactant reservoir for storing an amount of a first reactant such as hydrogen. When the fuel cell module is shutdown, the stored amount of the first re... | 09/16/2008 |
| 7353085 | Electrolyzer cell stack system As an electrochemical cell stack gets older the internal resistances within the stack rise overtime as the materials that the stack is made of degrade. Consequently, an old and “worn” electrochemical cell stack draws less current at the same stack voltage and op... | 04/01/2008 |
| 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 |
| 7338727 | Method of operating a fuel cell to provide a heated and humidified oxidant A method and apparatus are provided for humidifying fuel, and optionally oxidant, supplied to a fuel cell system, which can be a single fuel cell or a multiplicity of fuel cells. A catalytic reactor is provided, which is supplied with a portion of the fuel and the o... | 03/04/2008 |
| 7338545 | Apparatus for separating liquid from a process gas stream of an electrochemical cell stack A liquid separator includes a housing, a separation chamber disposed within the housing, a drain, an inlet channel, a swirler disposed within the inlet channel, and an outlet channel. The drain has a drain passageway for draining liquid from the separation chamber. ... | 03/04/2008 |
| 7323263 | Fuel cell system and method of operation to reduce parasitic load of fuel cell peripherals A fuel cell system and a method of operating same are provided. The fuel cell system includes a fuel cell for driving a load, at least one fuel cell peripheral, a device for measuring at least one fuel cell operation characteristic, and at least one controller for c... | 01/29/2008 |
| 7323262 | Method of operating a fuel cell power system to deliver constant power The present invention relates to a fuel cell system and a method of operating same, The fuel cell has a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet. The invention involves (a) providing a first reactant incoming s... | 01/29/2008 |
| 7311765 | Energy and/or mass exchange apparatus having an integrated fluid separator A liquid separator configured to separate liquid from a fluid stream. The separator includes a housing, a separation chamber disposed within the housing, a drain having a drain passageway for draining liquid from the separation chamber, an inlet chamber configured t... | 12/25/2007 |
| 7261150 | Apparatus for humidification and temperature control of incoming fuel cell process gas A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a se... | 08/28/2007 |
| 7210220 | 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 ... | 05/01/2007 |
| 7148654 | Method and apparatus for monitoring fuel cell voltages A system and method for monitoring cell voltages for a plurality of electrochemical cells connected in series forming a cell stack. The method includes dividing the cells into at least two cell groups, measuring the voltage across each cell group and estimating the ... | 12/12/2006 |
| 7149641 | System and method for controlling a fuel cell testing device A system and method in a data processor for controlling a controllable condition of a fuel cell via a control device is provided. The system and method involve (a) providing a script language comprising a control command type having an operating level field for rece... | 12/12/2006 |
| 7141321 | System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehicles The present invention relates to a network communication system and method to enable the real time buying and selling of electricity generated by fuel cell powered vehicles between a fuel cell powered vehicle and a consumer. The method comprises: providing connectio... | 11/28/2006 |
| 7138202 | 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 ... | 11/21/2006 |
| 7117106 | System and method for alarm recovery for an electrolyzer cell module Some embodiments of the present invention provide a system and method suited for controlling the operation of an electrolyzer cell module. Specifically, some embodiments of the present invention provide a system and method that incorporates a call to an alarm recove... | 10/03/2006 |
| 7077187 | Apparatus for exchanging energy and/or mass A regenerative energy and/or mass exchange assembly has: an exchange media; a first flow path to pass a fluid stream through the exchange media; at least a second flow path to pass a further fluid stream through the exchange media; and at least one fluid stream dive... | 07/18/2006 |
| 7051801 | Method and apparatus for humidification and temperature control of incoming fuel cell process gas A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a se... | 05/30/2006 |
| 7052791 | Apparatus for humidification and temperature control of incoming fuel cell process gas An apparatus for humidifying and controlling the temperature of a process gas stream; has a first humidification unit for super-saturating and heating the process gas stream at a first pre-set temperature; and a first heat exchanger for cooling the process gas strea... | 05/30/2006 |
| 7045230 | Chemical hydride hydrogen generation system and fuel cell stack incorporating a common heat transfer circuit A chemical hydride hydrogen generation system and an energy system incorporating the same are provided. The hydrogen generation system has: a storage means for storing a chemical hydride solution; a reactor containing a catalyst; and a pump for supplying the chemica... | 05/16/2006 |
| 7018732 | System and method for management of gas and water in fuel cell system A fuel cell system has: a fuel cell having a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet, and optionally a coolant inlet and coolant outlet. A first reactant supply subsystem supplies a first reactant incoming str... | 03/28/2006 |
| 6978224 | Alarm recovery system and method for fuel cell testing systems Some embodiments of the present invention provide a system and method that incorporates a call to an alarm recovery sequence into a safety system for use within a fuel cell testing system. In other embodiments of the present invention there is provided a safety syst... | 12/20/2005 |
| 6946104 | Chemical hydride hydrogen generation system and an energy system incorporating the same A chemical hydride hydrogen generation system and an energy system incorporating the same are provided. The hydrogen generation system comprises: a storage tank for storing a chemical hydride solution; a reactor containing a catalyst; a pump for supplying the chemic... | 09/20/2005 |
| 6935363 | Pressure control system for low pressure operation A pressure control system for controlling the pressure of a process fluid stream at a certain location having a pressure regulator disposed in the process fluid stream, through which the process fluid stream flows. A first pilot controller senses the pressure of the... | 08/30/2005 |
| 6936081 | Chemical hydride hydrogen reactor and generation system A system and reactor stack for generating hydrogen from a hydride solution in presence of a catalyst. The reactor stack includes a number of reactor plates and separator plates alternate with one another, to define reaction chambers alternating with coolant chambers... | 08/30/2005 |
| 6916567 | Regenerative dryer device and method for water recovery, primarily in the cathode side, of a proton exchange membrane fuel cell Moisture recovery and humidification in a fuel cell system involving (i) intermittently switching each dryer in a plurality of dryers into and out of one of a first mode of operation for recovering moisture from an outgoing oxidant stream and a second mode of operat... | 07/12/2005 |
| 6889147 | System, computer program product and method for controlling a fuel cell testing device During testing, a controllable condition of the fuel cell is controlled based on a control value, and a measurable condition of the fuel cell is measured to provide a data value. A data processor receives a user-readable input value and provides a user-readable outp... | 05/03/2005 |
| 6878477 | Fuel cell flow field plate A fuel cell stack comprising a plurality of fuel cells, each having an anode flow field plate, a cathode flow field plate and a membrane electrode assembly disposed between the flow field plates. The anode and cathode flow field plates have primary channels and ribs... | 04/12/2005 |
| 6875535 | Manifold for a fuel cell system A manifold for a fuel cell system, has a manifold body and a plurality of first ports in the manifold body, for connecting to fuel cell peripherals. A plurality of second ports in the manifold body provide connections to a fuel cell. A plurality of first fluid passa... | 04/05/2005 |
| 6869717 | Manifold for a fuel cell system A manifold for a fuel cell system comprises a plurality of first ports for connecting to fuel cell peripherals; a plurality of ports for connecting to a fuel cell stack; and a plurality of fluid passages within the manifold in communication with the said plurality o... | 03/22/2005 |
| 6866061 | Back pressure valve with dynamic pressure control A back pressure valve, comprises: a first housing including a first chamber formed therein having an inlet and an outlet for a first fluid; a second housing including a second chamber formed; a flexible diaphragm having an outer peripheral edge portion abutting the ... | 03/15/2005 |
| 6852439 | Apparatus for and method of forming seals in fuel cells and fuel cell 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 ... | 02/08/2005 |
| 6833207 | Unitized regenerative fuel cell with bifunctional fuel cell humidifier and water electrolyzer A regenerative fuel cell system, comprising an electrolyzer portion and a fuel cell portion; the electrolyzer portion has a closeable hydrogen inlet and a hydrogen outlet in communication with the cathode of the electrolyzer portion for conducting hydrogen, a gas by... | 12/21/2004 |
| 6816797 | System and method for measuring fuel cell voltage and high frequency resistance A method and apparatus are provided for measuring impedance and voltage characteristics of cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. Voltages are measured across individual cells, or groups of cells. At the same time, a... | 11/09/2004 |
| 6790546 | Method of heating and humidifying at least one of a fuel stream and an oxidant stream for a fuel cell A method and apparatus are provided for humidifying fuel, and optionally oxidant, supplied to a fuel cell system, which can be a single fuel cell or a multiplicity of fuel cells. A catalytic reactor is provided, which is supplied with a portion of the fuel and the o... | 09/14/2004 |
| 6787254 | Method and apparatus for humidification and temperature control of incoming fuel cell process gas A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a se... | 09/07/2004 |
| 6758981 | Method and apparatus for by-product removal in a hydrogen generation system A system and method for removing a by-product from a chemical hydride solution is disclosed. The method includes the steps of: (a) withdrawing the chemical hydride solution at a first temperature from the reactor; (b) cooling the chemical hydride solution to a secon... | 07/06/2004 |
| 6746789 | Catalytic humidifier and heater for the fuel stream of a fuel cell A method and apparatus are provided for humidifying fuel, and optionally oxidant, supplied to a fuel cell system, which can be a single fuel cell or a multiplicity of fuel cells. A catalytic reactor is provided, which is supplied with a portion of the fuel and the o... | 06/08/2004 |
| 6737184 | Chemical hydride hydrogen generation system and an energy system incorporating the same A chemical hydride hydrogen generation system and an energy system incorporating the same are provided. The hydrogen generation system has: a storage means for storing a chemical hydride solutions; a reactor containing a catalyst; and a pump for supplying the chemic... | 05/18/2004 |
