...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8091354 | Exhaust assembly with universal multi-position water trap An exhaust assembly includes a water trap blocking upstream water flow at a plurality of angular positions enabling universal application and flexibility of orientation. ... | 01/10/2012 |
| 7886531 | Exhaust system having outlet-located moisture entrainment device An exhaust system associated with a power source is disclosed. The exhaust system may have an exhaust stack extending from the power source to an exterior of the exhaust system and a moisture collection device disposed within the exhaust stack to collect moisture fr... | 02/15/2011 |
| 7587894 | Exhaust structure for engine An exhaust structure for an engine is disclosed. The exhaust structure includes an exhaust line, through which the exhaust gas discharged from the engine passes. The exhaust line has a double pipe structure capable of preventing the condensed water formed in the exh... | 09/15/2009 |
| 7430858 | System to generate inert gas from exhaust gas An inert gas production and compression system for extracting and compressing an inert gas from an exhaust gas of an engine includes a power and inert gas generator, an inert gas processing system, and an inert gas compressor. The inert gas processing system include... | 10/07/2008 |
| 7389639 | Water recovery and purification A system for recovering and purifying water from a gas stream may include, a gas stream purification unit for purifying the gas stream, a water separation unit for separating water from the purified gas stream, and a water purification unit for purifying the water s... | 06/24/2008 |
| 7347044 | Exhaust water trap A vertical exhaust water trap assembly has an outer housing and an internal housing or exhaust tube defining an annular water collection spaced therebetween bypassing a central exhaust flow area. ... | 03/25/2008 |
| 7340889 | Method and apparatus for treating exhaust gases from combustion sources A method and apparatus for removing contaminant emissions from the exhaust stream of a combustion device, comprising increasing the dew point of the exhaust gases; reducing the velocity of the exhaust stream; reducing the temperature of the exhaust stream such that ... | 03/11/2008 |
| 7328572 | Exhaust aftertreatment device with star-plugged turbulator An exhaust aftertreatment device has a turbulator provided by a tube having a perforated star-plugged downstream end. ... | 02/12/2008 |
| 7302795 | Internal combustion engine/water source system An internal combustion engine system for automotive vehicle wherein liquid water is produced by cooling a portion of exhaust gases at elevated pressure to induce condensation. The use of elevated pressure allows condensation to occur at a higher dew point which is e... | 12/04/2007 |
| 7240483 | Pre-combustors for internal combustion engines and systems and methods therefor Described here are systems and methods for treating fuel injected exhaust streams. In general, the systems comprise a fuel injector, a pre-combustor, and a fuel combustor. The methods described herein include methods for regenerating a NOx trap or a DPF, ... | 07/10/2007 |
| 7162864 | Method for control of NOx emission from combustors using fuel dilution A method of controlling NOx emission from combustors. The method involves the controlled addition of a diluent such as nitrogen or water vapor, to a base fuel to reduce the flame temperature, thereby reducing NOx production. At the same time, a gas capable of enhanc... | 01/16/2007 |
| 7121087 | Exhaust emission control device of internal combustion engine In an exhaust path, a HC trapping material which traps HC contained in exhaust gas temporarily, a H2O trap which traps H2O contained in exhaust gas and a CO oxidation catalyst are arranged in this order from the upstream side, wherein the H | 10/17/2006 |
| 7114330 | Vertical exhaust water trap assembly An exhaust water trap assembly has separated and spaced exhaust tubes, and a dome cap blocking entry of water to protect an upstream catalytic converter or soot filter. A first tube extends axially upwardly into a housing, and a second tube is spaced vertically ther... | 10/03/2006 |
| 7104042 | Supercharged four-stroke internal-combustion engine with variable-volume exhaust gas exhaust device and method of operation of such an engine A four-stroke supercharged internal-combustion engine includes at least two cylinders with a combustion chamber (14), an air intake (16) including a pipe (20) associated with a shutoff (21), an exhaust (18) including a pipe (22 | 09/12/2006 |
| 7065961 | Exhaust system with an integral moisture trap A moisture trap is formed as an integral part of the wall of an exhaust conduit. Tapered surfaces can be provided to direct condensate downwardly and into a reservoir of the moisture trap where the moisture is retained until the temperature of the exhaust system rea... | 06/27/2006 |
| 7059118 | Mixing device for an exhaust gas purification system A mixing device for mixing the exhaust gas of an internal combustion engine flowing in an exhaust pipe with a reducing agent as well as an exhaust gas purification system having such a mixing device, in which a mixing body is positionable in the exhaust pipe and whi... | 06/13/2006 |
| 7055314 | System having open particulate filter and heating element, for cleaning exhaust gases from mobile internal combustion engines A system for cleaning exhaust gases of mobile internal combustion engines, particularly diesel engines, includes at least one open particulate filter having a freedom of flow of at least 20% and at least one heating element. The aim is to ensure, even at a position ... | 06/06/2006 |
| 7028663 | Fluid swirling device The device includes a pair of flat planar vanes securely mounted within a cylindrical housing. The vanes have a medial slit extending from the center to a longitudinal end of the vane. The vanes are interconnected at the slits so that they are in criss-cross positio... | 04/18/2006 |
| 7007459 | Exhaust gas control device for internal combustion engines Disclosed herein is an exhaust gas control device for internal combustion engines. The exhaust gas control device has a main exhaust pipe (3) communicating with an exhaust manifold (2) used for guiding exhaust gas discharged from a combustion chamber (... | 03/07/2006 |
| 7003946 | Process for the catalytic exhaust gas aftertreatment of engine combustion emissions For the regeneration of an NOx storage catalyst by means of hydrogen in a secondary hydrogen process, the hydrogen required for the regeneration is taken from a primary hydrogen process. ... | 02/28/2006 |
| 7000409 | Use of flow through capacitor in the recovery and purification of water from exhaust gases of internal combustion engines A process for recovering potable water from the exhaust gases of an internal combustion engine is disclosed. In this process the exhaust gases are cooled causing water to condense out, and the water formed is passed through particulate filters, activated carbon filt... | 02/21/2006 |
| 6978598 | Deteriorated state evaluation device for exhaust emission control equipment A humidity sensor 4 is disposed downstream of an exhaust gas purifier comprising a hydrocarbon adsorbing catalyst 2, and an air-fuel ratio sensor 5 is disposed at least downstream of the exhaust gas purifier. The hydrocarbon adsorbing ability of... | 12/27/2005 |
| 6942027 | Exhaust-gas heat recovery appliance An exhaust-gas heat recovery appliance having a heat-exchanger line and a bypass line and a heat exchanger being arranged in the region of the heat-exchanger line. At least one valve device, for the purpose of influencing the mass flow of exhaust gas, is provided in... | 09/13/2005 |
| 6935099 | Deteriorated state evaluation device of exhaust emission control equipment After an engine 1 has started to operate, a state in which a humidity represented by an output of a humidity sensor 19 downstream of a hydrocarbon adsorbent 7 takes a minimum value is sequentially searched for, and a timing at which the humidity... | 08/30/2005 |
| 6931841 | Process for the catalytic exhaust gas aftertreatment of engine combustion emissions For the regeneration of an NOx storage catalyst by means of hydrogen in a secondary hydrogen process, the hydrogen required for the regeneration is taken from a primary hydrogen process. ... | 08/23/2005 |
| 6928805 | Hydrocarbon adsorbent state monitoring device A characteristic change of a humidity sensor 19 is detected based on the transitional characteristics of output data of the humidity sensor 19 with respect to integrated moisture quantity data representative of an integrated amount of moisture that is ... | 08/16/2005 |
| 6922987 | System and method for enhancing internal combustion engine aftertreatment applications by superheated fuel injection The present invention provides for a system and process for enhancing internal combustion engine aftertreatment applications by superheated fuel injection. The system includes a fuel supply upstream of a fuel injector of an aftertreatment application. The system als... | 08/02/2005 |
| 6912840 | Diagnosis of a water adsorber in the exhaust of an internal combustion engine A method for checking the functionality of a water adsorber in the exhaust of an internal combustion engine is provided. A sensor measures the temperature of the exhaust gases downstream in the flow direction from the water adsorber, and the functionality of the wat... | 07/05/2005 |
| 6901743 | Exhaust gas purifying method, exhaust gas purifying apparatus, and exhaust gas collecting apparatus of internal combustion engine An exhaust gas collecting apparatus, of an internal combustion engine including a collection vessel that can hold exhaust gas, an exhaust gas taking-out passage through which exhaust gas is introduced from an exhaust passage to the collection vessel, an exhaust gas ... | 06/07/2005 |
| 6895746 | Reducing oxides of nitrogen using hydrogen generated from engine fuel and exhaust Either (a) the exhaust (20) of an engine (9) and/or (b) inlet air (11) is sent to a hydrogen generator (22) along with diesel fuel (18) to produce hydrogen and carbon monoxide (26) for either (c) mixing with the mainstream o... | 05/24/2005 |
| 6868670 | Compact, reduced backpressure, vertical exhaust water trap assembly An exhaust water trap assembly has separated and spaced exhaust tubes, and a dome cap blocking entry of water to protect an upstream catalytic converter or soot filter. A first tube extends axially upwardly into a housing, and a second tube is spaced vertically ther... | 03/22/2005 |
| 6823659 | Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device A moisture removal device for an internal combustion engine use exhaust gas purifying device with a trapped moisture amount estimation means which estimates amount of moisture exhausted from an internal combustion engine and trapped in the catalyst, a judgement mean... | 11/30/2004 |
| 6804949 | Water sources for automotive devices The present invention provides a self-replenishing liquid water source onboard an automobile for supplying liquid water to an electrolyzer, such as an on-board hydrogen generator useful for the suppression of unwanted emissions. While automobiles typically have wate... | 10/19/2004 |
| 6745562 | Diverter for catalytic converter A diverter (60) is provided, which is of low cost and which is effective in more evenly distributing exhaust gasses passing from a small diameter upstream exhaust gas pipe section (42) into a much larger diameter catalytic converter assembly (20... | 06/08/2004 |
| 6581375 | Apparatus and method for the recovery and purification of water from the exhaust gases of internal combustion engines A method for the recovery and purification of water from the exhaust gases of an internal combustion engine is disclosed. An apparatus for carrying out that method is also disclosed. In this method, the water is condensed out from the vehicle's exhaust (f... | 06/24/2003 |
| 6539977 | Self draining orifice for pneumatic lines Drainage is enhanced in an orifice formed inside the internal passage of a pneumatic line by providing the orifice with first and second portions. The first portion defines a diameter that is smaller than the diameter of the internal passage, and the seco... | 04/01/2003 |
| 6532735 | Exhaust gases purification device and method for internal combustion engines An exhaust gases purification device for internal combustion engines, of the kind that includes a duct which channels gases from the engine exhaust manifold, and injects them into the device. The device includes a quiet chamber, wherein gases expand, a fi... | 03/18/2003 |
| 6430921 | System moisture absorber An exhaust system for an internal combustion engine has special accommodations for preventing the pooling of water in the passageways of the exhaust system. One or more of the components of the exhaust system such as mufflers and or sections of exhaust tu... | 08/13/2002 |
| 6401449 | Expanded grid static mixer A static mixer in the exhaust emission control system of an excess-air-operated combustion engine is formed of an expanded grid with a plurality of openings formed between crossbars. Using an expanded grid achieves both good mixing of the exhaust gas with... | 06/11/2002 |
| 6357227 | System and method for reducing pollutants in the exhaust gas of an internal combustion engine An exhaust system for an internal combustion with a catalytic converter connected to the exhaust pipe for cleaning the engine exhaust gas in the presence of a reducing agent also includes a condensation water collector into which the exhaust gases are div... | 03/19/2002 |