Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4312927 | Energy conversion and storage process An energy conversion process for converting thermal energy into stored electrochemical energy and then into electrical energy comprising heating a first FeCl2 -containing electrolyte melt to produce gaseous FeCl3 and a reductant prod... | 01/26/1982 |
| 4310404 | Electrolytic bath vessel elements The invention resides in an electrolytic cell element representing a frame structure defining partially an anode chamber and a cathode chamber. The frame is composed of a carbon fiber-high polymer composite material.... | 01/12/1982 |
| 4305793 | Method of concentrating alkali metal hydroxide in hybrid cells having cation selective membranes Alkali metal hydroxide solutions are purified and concentrated by electrolysis of such solutions in the anode compartment of a hybrid cell comprising an anode compartment and a cathode compartment separated by a cation permeable diffusion barrier. To enab... | 12/15/1981 |
| 4301222 | Separator plate for electrochemical cells A thin electrochemical cell separator plate with greatly improved properties is made by molding and then graphitizing a mixture of preferably 50 percent high purity graphite powder and 50 percent carbonizable thermosetting phenolic resin, the graphite mol... | 11/17/1981 |
| 4296184 | Electrochemical cell An electrochemical cell and the method to operate same are described. The cell comprises at least two compartments, first and second, separated by a semipermeable membrane, said compartments containing first and second solvent, electrolyte and electrode. ... | 10/20/1981 |
| 4292379 | Variable area fuel cell process channels A fuel cell arrangement having a non-uniform distribution of fuel and oxidant flow paths, on opposite sides of an electrolyte matrix, sized and positioned to provide approximately uniform fuel and oxidant utilization rates, and cell conditions, across the... | 09/29/1981 |
| 4246324 | Consumable replaceable anodes for batteries A battery comprising an inert container housing a plurality of corrosion resistant gas depolarized metal cathode elements in hollow box-like form and consumable anode elements in spaced relationship with said cathode elements. At least one wall of each ca... | 01/20/1981 |
| 4243731 | Method and device for feeding a fuel cell with fluid reactants A method for feeding with the same fluid different chambers of a fuel cell block, each of these chambers being connected to a fluid feed pipe and to a fluid discharge pipe, the fluid flow rate admitted into each chamber being limited by flow rate control ... | 01/06/1981 |
| 4235690 | Trace gas sensor This invention directly converts some foreign trace gases that may be present in the air into an electrical current. Such gases include hydrogen sulphide, ammonia and chlorine. A rotating cylinder of glass, ceramic or plastic is coated on the outer surfac... | 11/25/1980 |
| 4225654 | Fuel cell By utilizing in a multi-layered fuel cell, plastic separators with the inter-cell connectors supported in resilient but vaportight fashion within the separators, a lighweight fuel cell may be realized which does not suffer from fuel-oxidizer leakage despi... | 09/30/1980 |
| 4207382 | Fluidized air-depolarized electrodes and related apparatus and methods Improved oxygen-consuming electrochemical cells are provided with a fluidized-bed oxygen absorber (1), wherein electrolyte-wetted carrier particles (3), especially electronically conductive catalyst particles, are oxygen-enriched, and a substantially bubb... | 06/10/1980 |
| 4190703 | Fluidized-bed electrodes and related apparatus and methods The current-carrying capacity of a fluidized-bed electrode is enhanced by imparting increased velocities to the particles suspended therein while maintaining a relatively low degree of bed expansion or voidage. This is accomplished in one embodiment of th... | 02/26/1980 |
| 4185145 | Fuel cell electrolyte reservoir layer and method for making A porous graphite reservoir layer for retaining electrolyte within a fuel cell is improved by coating the pore surfaces of the reservoir layer with wettable, particulate amorphous carbon. Preferably the amorphous carbon particles are colloidal and have a ... | 01/22/1980 |
| 4176213 | Battery unit, containing one or more fuel-cell blocks Fuel-cell battery unit containing a number of fuel-cell blocks. The fuel-cell blocks are attached to a beam having an I-shaped cross-section, on both sides against the thin intermediate section thereof. Primary ducts for supplying air, fuel and electrolyt... | 11/27/1979 |
| 4169917 | Electrochemical cell and separator plate thereof A fuel cell includes a separator plate having first and second flow channels extending therethrough contiguously with an electrode and respectively in flow communication with the cell electrolyte and in flow isolation with respect to such electrolyte. In ... | 10/02/1979 |
| 4166154 | Process permitting the introduction of particles into the liquid of a chemical and/or electrochemical reactor In a process consisting of introducing particles into a reactor liquid, a compact feed mass comprising primary particles and a compacting liquid is eroded so as to dissociate said compact feed mass into secondary particles, which are entrained into the re... | 08/28/1979 |
| 4160856 | Novel fuel cell containing novel means for removal of carbonates This invention provides a multi-compartment fuel cell wherein each cell has an anode and a cathode separated by a membrane partly immersed in the electrolyte and contains means for the progressive removal of carbonates formed during operation of the fuel ... | 07/10/1979 |
| 4117204 | Sulfite anolyte and persulfate catholyte fuel cell Fuel cell liquid-liquid system comprising aqueous anolyte solution containing sulfite or bisulfite ion in high concentration recirculating through the anolyte compartment of a two electrolyte fuel cell. After converting its chemical energy to electrical e... | 09/26/1978 |
| 4085255 | Water separation cell for removing the reaction water from the electrolyte of fuel cells and fuel cell batteries A water separation cell for removing the reaction water from the electrolyte of fuel cells and fuel cell batteries which comprise a liquid chamber bounded on at least one side by a porous diaphragm, and a gas chamber bounded by the diaphragm and a condens... | 04/18/1978 |
| 4074020 | Cross-feed fuel cell battery with filter press type structure of polygonal cross-section The component plates stacked in a filter press type structure in a repeated cathode, separator, anode and conductive plate sequence are of hexagonal or duodecagonal shape with an outer frame carrying the channels for supplying and withdrawing the reagents... | 02/14/1978 |
| 4064321 | Fuel cell with electrodes separated by intermediate elements In the compartments of the fuel cell are located intermediate elements leaving two free spaces of minimum volume in the vicinity of the two electrodes respectively, which delimit each compartment. These two free spaces extend substantially over the whole ... | 12/20/1977 |
| 4048385 | Cross-feed fuel cell battery with filter press type structure of cylindrical cross-section The component plates stacked in a filter press type structure in a repeated sequence of cathode, separator, anode and conductive plate are of cylindrical shape with an outer frame carrying the channels for supplying and withdrawing the reagents. Hollowed-... | 09/13/1977 |
| 4038461 | Electrochemical cell having balanced distribution of oxygen and electrolyte An improved electrochemical cell having circular anodes, cathodes, and electrolyte reservoirs; semicircular separators and gas flow spaces, is constructed such that approximately one-half of each of the two major faces of each cathode is adjacent to separ... | 07/26/1977 |
| 4007058 | Matrix construction for fuel cells This invention pertains to a fuel cell which comprises a case, positive and negative electrodes inserted therein and electrolyte filling the inner space between the electrodes. Means for introducing an oxidizing gas into the space behind one electrode and... | 02/08/1977 |
| 4007059 | Electrochemical cell electrode separator and method of making it and fuel cell containing same An ion permeable material particularly useful for electrode separators. The material is a uniform mixture of 30 to 70% by weight colloidal size asbestos fibers and 20 to 40% by weight unsintered fine polytetrafluoroethylene fibers, bonded together with un... | 02/08/1977 |
| 4002493 | Fuel cell structure and system, more particularly for a carbon fuel and atmospheric air This structure is constituted by several cells each comprising, more partlarly, an anode and a cathode separated by a corrugated membrane partly immersed in the electrolyte, as well as a condensor-exchanger device for the water drawn off by the combustiv... | 01/11/1977 |
| 4001040 | Fuel cell A fuel cell is constructed in such a manner that a porous film which is electrolyte-resistant and inactive to fuel is allowed to adhere to one surface of a fuel electrode and an electrolyte containing hydrazine fuel supplied to the cell and passing throug... | 01/04/1977 |
| 3996064 | Electrically rechargeable REDOX flow cell There is disclosed a bulk energy storage system including an electrically rechargeable reduction-oxidation (REDOX) cell divided into two compartments by a membrane, each compartment containing an electrode. An anode fluid is directed through the first com... | 12/07/1976 |
| 3994748 | Method for feeding reactant gas to fuel cells in a stack and apparatus therefor A flow scheme for feeding a reactant gas to the cells of a fuel cell stack wherein the cells are connected electrically in series. For example, the fuel gas is passed in parallel over a portion of each fuel electrode and thereupon into a mixing manifold w... | 11/30/1976 |
| 3990912 | Electrolyte regeneration in a fuel cell stack In a fuel cell stack utilizing an alkali metal electrolyte, the electrolyte is distributed in parallel between the electrodes of a plurality of fuel cells and is then fed to regenerator cell which converts carbonate ions to molecular CO2 gas wh... | 11/09/1976 |
| 3982959 | Sodium-sulphur battery cells In a sodium-sulphur battery cell of tubular form, the sulphur compartment provided inside a tubular solid electrolyte. The sodium compartment is provided by the annular space between the solid electrolyte and a metal casing. A carbon current collector ex... | 09/28/1976 |
| 3982957 | Sodium sulphur cells In a sodium sulphur cell, the cathode current collector in the sulphur/polysulphide cathodic reactant comprises a carbon or graphite tube containing a solid metal, e.g. aluminium, core and a liquid metal, e.g. tin or a tin-lead alloy, as a conducting inte... | 09/28/1976 |
| 3982961 | Fuel cell stack with an integral ejector for reactant gas recirculation A stack of fuel cells operating on gaseous reactants includes an ejector in integral heat exchange relationship with the stack for recirculating one of the reactant gases through the cells of the stack. The recirculating reactant is continuously heated by... | 09/28/1976 |
| 3981745 | Regenerative fuel cell A regenerative fuel cell assembly is provided in which a fuel cell is integrated with an electrolysis cell. In a preferred embodiment the fuel cell assembly and electrolysis cell assembly are spaced apart and have their hydrogen electrodes in facing relat... | 09/21/1976 |
| 3977902 | Fuel cell system An assembly of fuel cells, enclosed in a container, is immersed in a tank holding the electrolyte. Operating gas is used to produce electrolyte circulation through the cells.... | 08/31/1976 |
| 3977903 | Forced-flow electrochemical battery The invention comprises the grouping of a battery into modules fed in series with a potassium hydroxide solution containing zinc in suspension. It further comprises the grouping of the modules into an even number of assemblies in which the modules are con... | 08/31/1976 |
| 3963519 | Metal/air cell Primary and secondary lightweight "AA," "C," "D," and the like metal/air cells comprising an anode, a cathode, and an electrolyte are described in which the anode comprises a consumable porous metal and the cathode comprises a hydrophobic member in contac... | 06/15/1976 |
| 3951689 | Alkali metal/sulfur cell with gas fuel cell electrode An improved alkali metal/sulfur cell of the type including: (A) at least one anodic reaction zone containing a molten alkali metal reactant-anode in electrical contact with an external circuit; (B) at least one cathodic reaction zone including an electrod... | 04/20/1976 |
