Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8152907 | Gas purification apparatus and method A gas purification apparatus capable of removing fine particles of substantially any size without lowering the efficiency of gas supply. A loader module of a substrate processing apparatus includes a fan filter unit for producing a downward flow of atmospheric air i... | 04/10/2012 |
| 7981198 | Overlap zoned electrically heated particulate filter A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of th... | 07/19/2011 |
| 7410529 | Filter service system and method According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device of a work machine includes a gas pressurization assembly. An element of the gas pressurization assembly is removably attachable to a first orifice of... | 08/12/2008 |
| 7384455 | Filter service system and method According to an exemplary embodiment of the present disclosure, a method of detecting matter within a filtering device includes measuring a metric indicative of a first quantity of matter within the filtering device and removing a portion of the matter from the filt... | 06/10/2008 |
| 7371266 | Apparatus for cleaning a diesel particulate filter with multiple filtration stages The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device includes a source of high pressure fluid and a mechanism transport the fluid to a nozzle or nozzles; an actuator for moving the no... | 05/13/2008 |
| 7328831 | Method of making a brazed metal article and the article formed thereby A method of making an article that is comprised of a metal foam in contact with a base metal by an intermediate braze composition, in particular, a method of brazing a metal foam to a base metal via a braze composition. In one preferred method, a polymeric foam is c... | 02/12/2008 |
| 7260930 | Radio frequency-based particulate loading monitoring system A particulate trap regeneration system is provided, which may include a particulate trap having a filter medium configured to remove one or more types of particulate matter from an exhaust flow of an engine and a regeneration device configured to reduce an amount of... | 08/28/2007 |
| 7247190 | Engine exhaust gas cleaning apparatus An engine exhaust gas cleaning apparatus is provided to minimize torque shock as during regeneration of an exhaust gas cleaning device. The engine exhaust gas cleaning apparatus comprises a fuel delivery device that delivers fuel to an engine at a lean excess air ra... | 07/24/2007 |
| 7185489 | Particulate trap A particulate trap has a housing and a plurality of filters disposed within the housing. The particulate trap also has a plurality of dividers fluidly isolating one or more of the plurality of filters into filter divisions. The particulate trap has at least one inle... | 03/06/2007 |
| 7160355 | Method and system for regenerating diesel particle filters A method of regenerating at least one diesel particle filter, in which exhaust gas is introduced through a supply line into the at least one diesel particle filter and is discharged from it through a discharge line, while heating of the exhaust gas flowing through t... | 01/09/2007 |
| 7147694 | Fibrous media utilizing temperature gradient and methods of use thereof A method for removing a liquid from a gas, comprises passing the gas and the liquid through a network of fibers containing at least one fiber in which a temperature gradient has been induced along at least a portion of the length of the fiber, thereby permitting dro... | 12/12/2006 |
| 7144448 | Autoselective regenerating particulate filter An apparatus for removing particulates from a gas stream is described comprising a filter through which gas may be caused to flow, at least one first electrode for producing an atmospheric glow discharge located near to but spaced apart from the filter, and at least... | 12/05/2006 |
| 7108739 | Efficiently regenerated particle trap for an internal combustion engine and method of operating same Particle traps are often used to reduce particulate emissions from internal combustion engines to acceptable levels. In order to maintain the particulate traps, they must be periodically regenerated in order to burn off the trapped particles. Strategies for efficien... | 09/19/2006 |
| 7083663 | Active filtration of airborne contaminants employing heated porous resistance-heated filters Filter devices, suitable for rendering pathogenic microorganisms non-viable and capable of regeneration to serve as filter devices for applications such as diesel engines where combustible particulates are trapped, include at least one porous filter element which is... | 08/01/2006 |
| 7077888 | Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be ... | 07/18/2006 |
| 7025811 | Apparatus for cleaning a diesel particulate filter with multiple filtration stages The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device comprises a source of high pressure fluid and means to transport the fluid to a nozzle or nozzles; an actuator for moving the nozz... | 04/11/2006 |
| 6938409 | Method for reducing particle emissions containing carbon of diesel motors and corresponding system Exhaust gas amitted from a diesel engine flows through a ceramic soot filter in which particles contained in the exhaust are deposited and oxidized to regenerate the filter. The filter is regenerated by non-thermal, electric surface creeping discharge on filter surf... | 09/06/2005 |
| 6911062 | Filter assembly utilizing dual filter elements and a pressure responsive member to provide differential pressure actuated switchover Method and apparatus for filtering contaminants from a pressurized fluid. First and second filter elements are arranged within a housing to receive a flow of pressurized fluid. Respective first and second portions of the flow are directed through the filter elements... | 06/28/2005 |
| 6854261 | Self-mode-stirred microwave heating for a particulate trap A method and apparatus for initiating regeneration in a particulate trap including the steps of locating self-mode-stirring microwave-absorbing material in the particulate trap in areas that particulates build up, generating microwaves, absorbing microwaves with the... | 02/15/2005 |
| 6770116 | Regeneration device of exhaust gas purification filter and filter regeneration method A regeneration device of an exhaust gas purification filter that reduces the regeneration time of the filter. The regeneration device includes a plurality of first temperature detectors arranged in casings to detect the temperature in each casing and a second temper... | 08/03/2004 |
| 6702875 | Carbon fiber filters for air filtration Described are filters containing free-activated carbon fibers or activated carbon fibers in the form of a composite used for filtering a variety of contaminants, including pathogens, from air. These filters can provide effective and efficient removal of c... | 03/09/2004 |
| 6660068 | Autoselective regenerating particulate filter An apparatus for removing particulates from a gas stream is described comprising a filter (1) through which gas may be caused to flow, at least one first electrode (15) for producing an atmospheric glow discharge located near to but spaced apart from the ... | 12/09/2003 |
| 6565630 | Regeneration system for an exhaust gas cleaning device A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine includes an exhaust gas cleaning honeycomb filter and a heating device for the filter, wherein the filter is a checkered SiC hon... | 05/20/2003 |
| 6527820 | Soot filter for diesel exhaust A soot filter for the exhaust gas of a diesel engine comprises a filter body and a glow plug for thermally regenerating the filter body. At least one glow rod has a contact part that is spring-mounted at the glow rod in an axially displaceable fashion. It... | 03/04/2003 |
| 6485544 | Parallel folded filter A parallel folded filter has good sealing properties between the folded filter web and the filter housing with the smallest possible amount of sealant. The filter is prepared with an elliptical filter blank, in which the rows (1) of fold lines (locations ... | 11/26/2002 |
| 6435113 | Incineration apparatus and method which suppress generation of dioxins A method for decreasing the concentration of a chlorinated aromatic compound in the exhaust gas from a combustion furnace. The exhaust gas from the combustion furnace is passed through a bag filter. The concentration of the chlorinated aromatic compound i... | 08/20/2002 |
| 6432168 | Measuring arrangement and method for monitoring the operability of a soot filter A measuring arrangement is provided with a soot filter for use in flowing, soot particle-bearing gases, as well as a method for monitoring the operability of a soot filter arranged in an exhaust gas conduit, wherein at least one component stream of an exh... | 08/13/2002 |
| 6364932 | Cold gas-dynamic spraying process The present invention provides an improved cold gas-dynamic spraying process utilizing a carrier gas and small-diameter particulates whereby the particulate-laden carrier gas is directed to a ceramic filter unit where the particulates are separated out an... | 04/02/2002 |
| 6299668 | Method for separating mixtures of substances using a material pervious to said substances Mixtures of gases, liquids or solutions are separated by contacting the mixtures with a substance-permeable material and applying a voltage to the substance-permeable material, thereby increasing the efficiency of separation techniques such as microfiltra... | 10/09/2001 |
| 6176896 | Process and device for local and controlled regeneration of a particle filter A process and device for local permeability evaluation and local regeneration of a particle filter consisting of several juxtaposed zones through which a flow of gas to be scrubbed is passed include the steps of and apparatus for measuring the temperature... | 01/23/2001 |
| 6120583 | Exhaust gas purifier and operating method thereof An exhaust gas purifier, having three or more filter units parallel, wherein if at least one filter unit fails during its generation, it is compensated by the cyclic operation of the maining filter units so that the total function of the exhaust gas purif... | 09/19/2000 |
| 6117213 | Particle trap apparatus and methods A method for removing particulate matter from an exhaust stream, in which the exhaust stream is passed through a particle trap assembly. The trap assembly includes a particle trap having a trap inlet, a filter region located downstream from the trap inlet... | 09/12/2000 |
| 6090187 | Apparatus and method for removing particulates in exhaust gas of an internal combustion engine collected by exhaust particulate remover apparatus Two filters provided in an exhaust path of an internal combustion engine are used to simultaneously collect particulate in an exhaust gas and are alternately refreshed. When a refresh timing of the filters comes, a determination is made as to which of the... | 07/18/2000 |
| 6027553 | Air filter unit and method for manufacturing the same An air filter unit in which the generation of organic substances is restrained by controlling at least the amount of organic substances detected from a square test piece of 5×5 cm (25 cm2) of a filter medium so as to be 100 ng or less in the t... | 02/22/2000 |
| 5976225 | Method of recovering paint booth filters A filter frame and media capable of withstanding repeated heating to high temperatures in an oxidizing environment, and a method of cleaning the same for indefinite use in a method of operating industrial paint booths. Progressive density, heat resistant,... | 11/02/1999 |
| 5972075 | Exhaust gas purifier and regeneration method therefor In a purifier for removing particulates from an exhaust gas, a pressure difference, and a flow rate of the air supplied to the filter element is adjusted in such a manner that a difference between a pressure difference of an air across a substantially inv... | 10/26/1999 |
| 5750026 | Device for removal of contaminants from fluid streams A device for purifying a workstream of contaminants and method of making. One device is made of an inorganic monolithic porous particulate filter and a continuous uninterrupted coating of activated carbon impregnated into the pores of the filter. Preferab... | 05/12/1998 |
| 5603751 | Method and apparatus for removing particulate material from a wood drying system A gas filtration system which includes a primary separator for removing a majority of a particulate material from a gas stream. The primary separator discharges a filtered gas stream which retains a portion of the particulate material. The filtered gas st... | 02/18/1997 |
| 5578102 | Method for batch preheating and pollution abatement in glass manufacture A method and apparatus for glass manufacture is described having batch preheating and reduced pollution emission. The apparatus includes two modules containing pelletized glass and/or cullet. One module functions as a pelletized glass preheater, and the o... | 11/26/1996 |
| 5551971 | Particulate filter, and system and method for cleaning same A system and related method for cleaning a particulate filter medium. The filter medium is cleaned by the input of energy to burn off particulate matter collected thereon. The system can comprise a thermocouple for monitoring the temperature of the filter... | 09/03/1996 |
