Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 5382416 | Method for purifying exhaust gas A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons, comprising (i) a zeolite having an SiO2 /Al2 | 01/17/1995 |
| 5378142 | Combustion process using catalysts containing binary oxides A catalyst composition containing one or more binary oxides of palladium and rare earth metal such as Ce, La, Nd, Pr and/or Sm. The catalyst composition is used for the catalytic combustion of gaseous combustion mixtures of oxygen and carbonaceous fuels s... | 01/03/1995 |
| 5376345 | Catalytic method and apparatus A catalytic reaction system for rapid light-off of hydrocarbon conversion reactions, said reaction system comprising at least one catalyst element of sufficiently low thermal mass to be electrically heatable at the rate of at least 100 degrees Kelvin per ... | 12/27/1994 |
| 5376344 | Three-way catalyst for automotive emission control A three-way catalyst for automotive emission control having a mechanical carrier having a support comprised substantially of alumina, a catalytic compound supported on said carrier having a major constituent of palladium, and a discontinuous phase of tita... | 12/27/1994 |
| 5374409 | Purifying gases with an alkali metal and transition metal containing zeolite A method for purifying an exhaust gas using a transition metal-containing zeolite having a high hydrothermal stability having the formula, in terms of a molar composition of oxides: aA2 O.bM2/n O.Al2 O3.cSiO.sub.2.dH.sub.2... | 12/20/1994 |
| 5351482 | Method of maintaining catalytic converter activity in gasoline vehicles The invention includes a method of reducing hydrocarbon emissions from electronic port fuel injected engines by feeding to the catalytic converter an amount effective to reduce hydrocarbon emissions from the engines of chlorine or a chlorine compound.... | 10/04/1994 |
| 5338715 | Catalyst for exhaust gas purification A catalyst for exhaust gas purification having a crystalline silicate including an oxide of an alkali metal and/or hydrogen ion, aluminum oxide, an oxide of an alkaline earth metal, Ca, Mg, Sn, or Ba, an X-ray diffraction pattern described in Table 1 in t... | 08/16/1994 |
| 5330732 | Method for purifying exhaust gases A method for the catalytic purification of an oxygen-rich exhaust gas, wherein the catalyst comprises: a catalyst support, a zeolyte layer formed on the catalyst support and noble metals such as platinum, palladium and rhodium loaded on the catalyst. The ... | 07/19/1994 |
| 5326735 | Iridium catalysts for purifying exhaust gas A catalyst comprising an iridium supported on at least one carrier selected from the group consisting of metal carbides and metal nitrides for eliminating nitrogen oxides in exhaust gas in the presence of oxygen in excess of the stoichiometric quantity of... | 07/05/1994 |
| 5326736 | Amorphous alloy catalysts for conversion of exhaust gases to harmless gases This invention relates to a catalyst for cleaning exhaust gas, which is prepared by dipping in hydrofluoric acid an amorphous alloy composed of 20 to 80 atom % of one or more elements selected from the group consisting of Nb, Ta, Ti and Zr (the sum of Nb ... | 07/05/1994 |
| 5312608 | Exhaust gas purifying catalyst and an exhaust gas purifying method using the catalyst The catalyst for purifying an exhaust gas has at least gallium and a zeolite and an exhaust gas purifying method using the catalyst. Nitrogen oxides in the exhaust gas are reduced and eliminated by the catalyst in an oxidative atmosphere at a reaction tem... | 05/17/1994 |
| 5294421 | Method for catalytically purifying exhaust gas A method for purifying an oxygen excess exhaust gas by catalytically reducing nitrogen oxides contained in the exhaust gas, which comprises bringing a catalyst comprising at least one noble metal supported on a carrier composed mainly of an oxide or a com... | 03/15/1994 |
| 5292991 | Process for removal of hydrocarbons carbon manoxide, and oxides of nitrogen from oxygen-containing waste gas using molecular sieve-palladium-platinum catalyst on a substrate A process of using a catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system tha... | 03/08/1994 |
| 5271913 | Denitration catalyst for high-temperature exhaust gas A denitration catalyst for a high-temperature exhaust gas which is used to catalytically reduce and remove nitrogen oxides in the reaction temperature range of from 500° to 700° C. in the process of adding an ammonia gas to the exhaust gas containing th... | 12/21/1993 |
| 5270024 | Process for reducing nitrogen oxides from exhaust gas A catalyst for reducing nitrogen oxides from an exhaust gas containing the same in an oxygen rich atmosphere comprising (i) a zeolite having a molar ratio of SiO2 /Al2 O3 of at least 10, (ii) copper, and (iii) a rare earth... | 12/14/1993 |
| 5266548 | Catalyst carrier Porous carrier materials comprising at least 90% by weight of at least 95% pure alpha alumina are very effective as supports for catalysts treating engine exhausts and are significantly better able to withstand extreme conditions than conventional support... | 11/30/1993 |
| 5260249 | Catalyst for purifying automotive exhaust gas An exhaust gas purifying catalyst for simultaneous removal of carbon monoxide, hydrocarbons and nitrogen oxides from an exhaust gas from an internal-combustion engine, having carried on a monolithic carrier a mixture comprising a catalytically active comp... | 11/09/1993 |
| 5254519 | Catalyst composition containing platinum and rhodium components A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases includes a catalytic material disposed in on a carrier. The catalytic material contains a co-formed (e.g., co-precipita... | 10/19/1993 |
| 5250489 | Catalyst structure having integral heat exchange This invention is a catalyst structure having integral heat exchange surfaces and a method for using the structure in highly exothermic processes, such as a combustion process, while maintaining the catalyst and the structure wall at a temperature below t... | 10/05/1993 |
| 5248650 | Catalysts for the purification of exhaust gas A catalyst for the purification of exhaust gas comprises a combination of palladium carried on cerium oxide and palladium carried on alumina, or further rhodium carried on alumina, in which a weight ratio of palladium carried on cerium oxide to palladium ... | 09/28/1993 |
| 5244852 | Molecular sieve-palladium-platinum catalyst on a substrate A catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system that partially or enti... | 09/14/1993 |
| 5234881 | Binary LA-PA oxide catalyst and method of making the catalyst A catalyst having high temperature (800°-1050° C.) stability and improved three-way automotive exhaust gas catalyst activity at high temperatures, comprising an outer catalytic coating of binary La-Pd oxide (La2 Pd2 O5 o... | 08/10/1993 |
| 5223236 | Method for exhaust gas cleaning A method for cleaning an exhaust gas, entailing bringing the exhaust gas into contact with a crystalline aluminosilicate having a primary particle size of not less than 0.5 micron, containing one or more kinds of metal ions selected from the group of meta... | 06/29/1993 |
| 5216875 | Catalytic combustion process using supported palladium oxide catalysts A process for operating a palladium oxide-containing catalytic combustor is useful, e.g., for powering a gas turbine. The palladium oxide is supported on a metal oxide such as alumina, lanthanide metal oxide-modified alumina, ceria, titania or tantalum ox... | 06/08/1993 |
| 5212130 | High surface area washcoated substrate and method for producing same A washcoated substrate and method for producing the washcoat on the substrate are disclosed which comprises forming a slurry comprising at least one ionizable compound of A, where A is selected from barium, strontium, and combinations thereof, and A is in... | 05/18/1993 |
| 5212142 | High performance thermally stable catalyst A catalyst composition includes a carrier on which is disposed a catalytic material which may optionally be provided in discrete first and second coats. The catalyst material contains, e.g., in the first coat, a refractory inorganic oxide first support ha... | 05/18/1993 |
| 5208204 | Three-way catalyst for treating emissions from compressed natural gas fueled engines A three-way catalyst system for treating the exhaust stream of a compressed natural gas (CNG) fueled engine operating slightly rich of stoichiometry, the said catalyst system providing high conversions and low light-off temperature for the removal of HC, ... | 05/04/1993 |
| 5208206 | Method of manufacturing an exhaust gas purifying catalyst In a method of manufacturing an exhaust gas purifying catalyst, a carrier of heat-resistant alloy steel containing aluminum is initially prepared as a metallic carrier. A first alumina slurry containing fine particles of hydrated alumina and water is then... | 05/04/1993 |
| 5208205 | Catalyst system for converting emissions of a lean-burn engine A catalyst system for attaining high conversions of NO, HC, and CO in a fuel-lean emission flow (i.e., containing SO2, H2 O, H2, and considerable excess oxygen), the system comprising: (a) a first stage reducing catalyst f... | 05/04/1993 |
| 5202300 | Catalyst for purification of exhaust gas A catalyst composition comprising a refractory support having deposited thereon an active layer containing a platinum group metal component comprising an alumina component having the platinum group metals rhodium and palladium dispersed thereon, a cerium ... | 04/13/1993 |
| 5200384 | Exhaust gas-purifying catalyst excellent in heat resistance and process for preparation thereof This invention relates to a purifying-catalyst for exhaust gas emitted from internal combustion engines such as automobiles, and the object is to provide a catalyst which exhibits excellent exhaust gas purification performance at lower temperature compare... | 04/06/1993 |
| 5196390 | Hydrogen sulfide-suppressing catalyst system H2 S formation by three-way catalyst is suppressed by incorporating nickel, manganese or iron oxides into an undercoat layer disposed on a substrate, such as a monolith substrate. A topcoat overlying the undercoat is comprised of a three-way ca... | 03/23/1993 |
| 5196175 | Dispersion enhanced PT group metal catalysts A method of making a three-way catalyst based on platinum group metals, comprising: (a) impregnating an alumina substrate with a platinum group metal ion by contacting such substrate with an aqueous solution containing the platinum group metal in an amoun... | 03/23/1993 |
| 5196389 | Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system The invention relates to a catalytic system and to a method of producing such a system. The catalytic system consists of a support on which the catalytically active product is deposited. The support has mechanical or physical properties which are of inter... | 03/23/1993 |
| 5190907 | Granulated inorganic sorbent and method of its manufacture A granulated inorganic sorbent having the formula: Tix Zry Sn1-x-y O2.nH.sub.2 O where 0 | 03/02/1993 |
| 5185311 | Catalytic composite for purifying exhaust gases and a method for preparing the same For the preparation of a catalytic composite for purifying exhaust gases, first, at least one perov-skite-type compound oxide of the formula RMO3, where R is La or a combination of La and Ce, and M is Co, Mn or a combination thereof, is support... | 02/09/1993 |
| 5185305 | Catalyst system for treating the exhaust from a lean-burn gasoline-fueled engine A catalyst system for converting NOx, CO, and HC contained in the exhaust gas from a gasoline-fueled engine controlled to operate under lean-burn conditions (R=0.03-0.9) such that the a ratio of NOx to HC in the exhaust gas in in the... | 02/09/1993 |
| 5182249 | Non-precious metal three way catalyst A non-precious metal three-way catalyst which reduces hydrocarbon, carbon monoxide, and nitrogen oxide from internal combustion engine exhaust and industrial emissions, with a conversion capability comparable to the conversion efficiencies of current prec... | 01/26/1993 |
| 5179059 | Catalyst for purifying the exhaust gases of internal combustion engines and method for making the catalyst A catalyst for purifying the exhaust gases of internal combustion engines with improved light-off behavior and improved durability with reduced specific noble-metal content is disclosed which uses active aluminum oxide provided with customary promoters as... | 01/12/1993 |
| 5179053 | Treating exchaust from a compressed natural gas-fueled engine A catalyst system that converts the exhaust gas of a compressed natural gas (CNG) fueled automotive engine when operated at stoichiometry or slightly lean thereof, at highly enhanced rates, and having: (a) a first stage catalyst comprising a transition me... | 01/12/1993 |
