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| Number | Title | Issue Date |
| 4441997 | Liquid filtration system An improved liquid filtration system is provided which comprises, in combination, a tank or other vessel having a central cavity and a liquid inlet tube and liquid outlet tube spaced apart. A porous self-supporting filter is arched over the liquid outlet ... | 04/10/1984 |
| 4368167 | Method of making an electrode An improved method of making a silver chloride and copper chloride-containing electrode comprises forming a minimum melting point mixture of about 47% by weight of silver chloride and about 53% by weight of cuprous chloride and melting this mixture e.g. a... | 01/11/1983 |
| 4328297 | Electrode An improved electrode useful in electrochemical cells utilizes as the electrochemically active material zinc, zinc oxide, cadmium, cadmium oxide or a mixture of two or more of these materials. This electrochemically active material is preferably in the fo... | 05/04/1982 |
| 4319607 | Valve assembly and valve sealing element The improved valve assembly comprises, in combination, a housing having an elongated central passageway and a plurality of spaced ports in the sidewall thereof along the length thereof in communication with the passageway, an elongated drive shaft dispose... | 03/16/1982 |
| 4292143 | Method of making sintered plaque nickel electrodes The improved method of the invention comprises electrochemically depositing nickel hydroxide into the pores of a clean sintered nickel plaque cathode from heated aqueous electrolyte at acid pH in a treating zone containing an anode, while minimizing corro... | 09/29/1981 |
| 4276110 | Method of forming a separator integral with an electrode The method of the present invention comprises coating the surface of particles, such as glass beads, with a first coating, placing the coated particles in spaced relationship within a die so as to expose a portion of that coating, contacting that exposed ... | 06/30/1981 |
| 4262698 | Valve An improvement is provided in a valve having a valve housing defining first and second valve openings and a valve sealing element in the housing. The improvement comprises a three-piece valve sealing element. That valve sealing element comprises a first h... | 04/21/1981 |
| 4235748 | Method of making improved hydrogenation catalyst The present invention provides a method of making an improved catalyst useful for hydrogenation of organic compounds and in other reactions. The method comprises mixing a porous particulate refractory support material with a hydrophobic polymeric binder t... | 11/25/1980 |
| 4198594 | Method of charging a vented alkaline electrolyte-containing electrochemical cell The improved method of the present invention comprises charging a vented alkaline electrolyte-containing electrochemical cell employing an electrode pair selected from the group consisting of nickel-zinc, nickel-cadmium, silver-zinc and silver-cadmium and... | 04/15/1980 |
| 4197635 | Method of making a zinc electrode The improved method of the present invention comprises mixing zinc particles comprising zinc metal and/or zinc oxide with a concentration of bonding agent sufficient to bond the particles together when subject to mechanical roller pressure so as to form a... | 04/15/1980 |
| 4159367 | Hydrogen electrochemical cell and rechargeable metal-hydrogen battery An improved hydrogen electrode comprising a porous sheet of carbon particles catalyzed by platinum or palladium and bonded together with a hydrophobic binder, preferably Teflon, so that the sheet is wetproofed. A conductive metallic screen coated on one s... | 06/26/1979 |
| 4158085 | Electrode with separator beads embedded therein The method of the present invention comprises coating the surface of particles, such as glass beads, with a first coating, placing the coated particles in spaced relationship within a die so as to expose a portion of that coating, contacting that exposed ... | 06/12/1979 |
| 4130696 | Conductive diluent for pressed nickel electrodes The conductive diluent is a combination of powdered carbon (preferably graphite) and nickel flakes. It is admixed with the active electrode material and a binder in the pressed nickel electrode so that the diluent is substantially homogeneously mixed with... | 12/19/1978 |
| 4124743 | Mercury-free secondary alkaline battery and improved negative interseparator therefor Hydrogen gas evolution in secondary alkaline batteries which utilize zinc electrodes is reduced by incorporating mercury-free additives in the negative interseparators of such batteries. The additives disclosed herein are certain electrolyte-soluble compo... | 11/07/1978 |
| 4120757 | Method of making sintered plaque cadmium electrodes The improved method of the invention comprises electrochemically depositing cadmium hydroxide into the pores of a sintered nickel plaque cathode from a heated electrolyte at acid pH and at controlled density in a treating zone containing an anode, at leas... | 10/17/1978 |
| 4118552 | Self-supporting electrode and method of making same The improved self-supporting electrode of the present invention comprises a uniform mixture of cuprous chloride, preferably in major proportion and silver chloride, preferably in minor proportion. The electrode may also include a minor proportion of coppe... | 10/03/1978 |
| 4118551 | Mercury-free zinc electrode A mercury-free negative zinc electrode is described for use in secondary alkaline electrochemical cells. It contains an active zinc material and lead acetate or cadmium acetate substantially homogeneously dispersed in a non-ionic binder which is an hydrox... | 10/03/1978 |
| 4098962 | Metal-hydrogen secondary battery system The improved system of the present invention comprises a plurality of electrically interconnected power modules, each module comprising a sealed pressure vessel containing a volume of hydrogen and a plurality of batteries connected in parallel and dispose... | 07/04/1978 |
| 4091185 | Titanium/silver-containing cellulosic separator for electrochemical cells Semi-permeable silver-impregnated cellulosic materials for use as electrochemical cell separators are provided with a titanium-silver complex content by subjecting a cell in which the silver-impregnated cellulosic material is employed as a separator and w... | 05/23/1978 |
| 4063576 | Heat treatment of NiOx utilized in pressed nickel electrodes An improvement in the discharge capacity of pressed nickel electrodes which comprise a NiOx /Co/binder admixture pressed into a current collector is obtained by heating the NiOx to a temperature on the order of 125° C. to 175° C. e... | 12/20/1977 |
| 4049027 | Active material for pressed nickel electrodes An improved active electrode material for use in pressed nickel electrodes is made by first chemically co-oxidizing nickel and cobalt salts in an aqueous alkaline medium to form the respective NiOx and CoOx compounds and thereafter c... | 09/20/1977 |
| 4041221 | Zinc electrodes and methods of making same Improvements in cell capacity maintenance and reductions in electrode shape change are obtained in rechargeable zinc (-) cells by the inclusion of limited amounts of a titanate compound in the negative zinc electrode.... | 08/09/1977 |
| 4034144 | Separator for secondary alkaline batteries A negative interseparator for use as a component in a separator system for alkaline rechargeable batteries comprises about 50% to 95% by weight of a titanate material such as potassium titanate, a matrix-forming fibrous material, and a thickening agent fo... | 07/05/1977 |
| 4005246 | Reserve-type cell An improved reserve-type cell is provided which comprises, in combination, a pair of spaced electrodes, a separator between said electrodes, electrolyte storage means comprising bibulous material such as cotton wadding in a cavity disposed in contact with... | 01/25/1977 |
| 3985581 | Cell with circulating electrolyte To prevent the formation of internal short circuits between electrodes of a rechargeable electrochemical cell, the electrolyte is maintained in continuous motion at least during charging when, in the case of an air-depolarized cell with a positive oxygen ... | 10/12/1976 |
