Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7585346 | Media holding module A media holding module to hold various granular and pelletized gas phase filtration media for filtering air. The module is comprised of two solid side plates, and a perforated end panel and four perforated wall panels disposed between the side plates. The perforated... | 09/08/2009 |
| 7563301 | Air filter with partial-depth, open-cell stabilizer to reduce detrimental shifting and settling of granular filter materials within the filter A filter comprising a hollow frame comprising a first face, a second face and an interior passageway extending therebetween; a first screen extending across the passageway at the first face; a first partial-depth, open-cell stabilizer extending across and into the p... | 07/21/2009 |
| 7419526 | Conformal filter cartridges and methods Conformal filter cartridges, filtering apparatus using the conformal filter cartridges, and methods of manufacturing the conformal filter cartridges are disclosed. The conformal filter cartridges may include a bed of filter material between a pair of support plates,... | 09/02/2008 |
| 7332013 | Compressed air/gas-driven tool with integrated dryness indicator An air/gas-driven tool with an integrated air/gas dryness indicator. The tool includes a housing that defines a cavity. An air/gas dryness detector is disposed in the cavity. An air/gas flow passage is situated to provide a stream of compressed air/gas to the drynes... | 02/19/2008 |
| 7320723 | Exhaust gas filter and filtering system An exhaust gas filter cartridge which is suitable for use in a muffler such as to form an exhaust gas filtering system is disclosed. The filter cartridge preferably includes a first porous longitudinal wall and a second porous longitudinal wall, both porous longitud... | 01/22/2008 |
| 7279028 | Electrostatic filter An electrostatic filter having an improved dielectric is described. The dielectric constitutes a dielectric mat formed from high porosity non-woven fibers having pores that have a void fraction of at least 97%. The dielectric mat is sandwiched by a pair of porous el... | 10/09/2007 |
| 7175681 | Apparatus for removing fine particles in exhaust gas The present invention provides a fine particle removing apparatus which can efficiently burn collected fine particles in exhaust gas, has a simple configuration and can be readily controlled. In this fine particle removing apparatus, a filter unit which collects fin... | 02/13/2007 |
| 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 |
| 7041159 | Separation apparatus A separation cartridge is disclosed which comprises a first separation medium, a second separation medium, and a frame. The second separation medium is positioned adjacent to the first separation medium. The frame is configured to hold the first and second separatio... | 05/09/2006 |
| 7014692 | Scrubber A scrubber for eliminating NO from air flowing through the scrubber, comprising a housing (1) having at least one inlet hole (2) and an outlet hole (4) and which is comprising filtering material (6). A second outlet hole (9) is pro... | 03/21/2006 |
| 6997966 | Lint trap A lint trap having an enclosure with an interior surface, an open end, with an inlet spaced from an outlet on the interior surface. A cover is removably mountable to the open end of the enclosure with a filter secured to the cover, where side edges of the filter sli... | 02/14/2006 |
| 6966935 | Filter cleaner for wet/dry vacuum A filter cleaner for wet/dry vacuum is provided for effectively cleaning filter cartridges employed for use in a class of vacuum cleaners commonly referred to as “wet/dry vacs.” The filter cleaner apparatus includes a cylindrical catch tank supported by a base. ... | 11/22/2005 |
| 6692556 | Desiccant cartridge with elongated center tube This invention relates generally to desiccant cartridges for use in R/Ds or accumulators canisters of automotive air conditioning systems. More specifically, this invention relates to a desiccant cartridge including a cup having inner and outer walls coax... | 02/17/2004 |
| 6616734 | Dynamic filtration method and apparatus for separating nano powders A method and apparatus for separating nanometer-sized particles of a powder. The method includes (a) feeding the powder particles into a pressurized gas stream which carries the particles into a first stage filter device of a multiple-stage separator syst... | 09/09/2003 |
| 6605135 | Granular bed restraint system System for restraining the upward motion of granular material in a vessel containing a bed of the granular material through which a fluid flows in an upward direction. The system comprises flexible porous basket within the vessel in contact with the top o... | 08/12/2003 |
| 6589320 | Elongated adsorbent unit with external fluid communication channels An elongated adsorbent unit for use in combination with an elongated refrigerant-containing housing includes a housing having first and second ends, and an interior and an exterior. Adsorbent is compacted in the interior of the housing. First and second p... | 07/08/2003 |
| 6533847 | Adsorption apparatus An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has a first adsorptive media and a second adsorptive media contained within a respective element. The first and seco... | 03/18/2003 |
| 6468334 | Elongated absorbent unit with external fluid communication channels An elongated adsorbent unit for use in combination with an elongated refrigerant-containing housing includes a housing having first and second ends, and an interior and an exterior. Adsorbent is compacted in the interior of the housing. First and second p... | 10/22/2002 |
| 6312490 | Interlocked fiber fail-safe regenerator device A fail-safe/regenerator device (68), for use within a filter assembly (60) also containing a main filter element (28), contains a top main support (90), and a bottom main support (82), where a rigid, static bed of needles, fibers or wires (92), having an ... | 11/06/2001 |
| 6146435 | Biofilter In a biofilter, in particular for installation in discharge systems, with a collecting funnel and with an adjoining filter housing (13), the collecting funnel is to have a mounting ring (1), into which the filter housing (13) is inserted removably.... | 11/14/2000 |
| 6113674 | Adsorption apparatus and methods An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has adsorption media contained within a respective element. Each of the adsorption elements are selectively openable... | 09/05/2000 |
| 6106596 | Receiver/dryer and method of assembly A receiver/dryer includes a canister with a cylindrical sidewall, an integral lower end, and an open upper end. A pick-up tube is disposed centrally within the canister. The lower end of the pick-up tube has a wedged-shape and is supported by the lower en... | 08/22/2000 |
| 6093237 | Stack filter assembly and methods An air cleaner arrangement useful for cleaning air in ablative thermal imaging processes includes a housing and a removable and replaceable element assembly. The housing has an interior, an inlet conduit, and an outlet conduit. The element assembly includ... | 07/25/2000 |
| 6070653 | Cylindrical vessel for separation A separation device comprises a vessel (1) having an essentially circular cylindrical shape around a center axis (2), a first passage (4) provided in the cylindrical wall of the vessel and a second passage (5), provided in the cylindrical wall of the vess... | 06/06/2000 |
| 6042628 | Cyclone type dust collector A cyclone type dust collector having a raw air intake aperture, an air separating chamber including a cylinder of upper part and a reversed circular cone of lower part, inner and outer clean air exhaust ducts, the bottom of the air exhaust ducts being clo... | 03/28/2000 |
| 6039780 | Filter arrangement A filter arrangement with a cellular structure in which a plurality of filter chambers extend in the direction of the medium to be filtered. There is a filter cloth or fabric attached to each of the two sides of a cell frame which closes the filter chambe... | 03/21/2000 |
| 5964927 | Adsorption apparatus An adsorption apparatus has a housing including an inlet and an outlet, and defining an inlet plenum extending vertically below the inlet and an outlet plenum extending vertically below the outlet. A plurality of adsorption bed assemblies in a vertically ... | 10/12/1999 |
| 5932179 | Waste gas treatment apparatus There is disclosed a waste gas treatment apparatus in which dust concentration at a treated gas outlet is sufficiently reduced and the desulfurizing efficiency and denitrating efficiency of grains are increased. The waste gas treatment apparatus includes ... | 08/03/1999 |
| 5893945 | End structures for filter canisters An end cap assembly for a filter canister includes outer and inner metal caps each having an opening therein for general axial alignment with each other when secured to the ends of the canister. An inner metal plate or layer made of a wire mesh material a... | 04/13/1999 |
| 5882385 | Plant for treating at least one fluid and use for the separation of at least one constituent of a gas mixture An apparatus for improving the flow of fluid to be treated in boundary regions of a mass (2) of particulate material. The apparatus has at least one deflecting surface (4), making an angle with the main direction of the flow of fluid passing through the m... | 03/16/1999 |
| 5725645 | Vent assemblies for waste disposal bags A vent assembly useful for venting bags containing radioactive waste material includes a base plate with a chamber projecting therefrom and a cap plate which has a center portion that snap fits over the chamber. The base plate and cap plate have flange po... | 03/10/1998 |
| 5595910 | Biofilter with modular trays A biofilter for the removal of contaminants from gas streams disclosed. The biofilter makes use of a series of modular trays, each containing a gas-contacting medium for removing at least one contaminant from the process stream. The trays have a modular d... | 01/21/1997 |
| 5529609 | Air cleaner having a three dimensional visco-elastic matrix of material An air cleaner comprises a cleaning element having a three-dimensional visco-elastic matrix of material for adsorbing airborne particulate matter and for absorbing volatile liquids and a variety of noxious gases. The three-dimensional visco-elastic matrix... | 06/25/1996 |
| 5527514 | Desulfurizing and denitrating tower A desulfurizing and denitrating apparatus wherein an inner space of a tower body, which has an introduction port for a gas to be processed and a processed gas discharge port formed respectively in opposite side walls, is partitioned in a direction from th... | 06/18/1996 |
| 5514205 | Apparatus for removing harmful objects from a gas An apparatus for removing harmful objects comprising a cylindrical casing having an inlet and an outlet, a fill-up section for a granular or lump treating material for adsorbing or resolving the harmful objects. An inlet obstructive plate provided within ... | 05/07/1996 |
| 5512088 | Separator A filtering device well adapted for filtering moisture from a natural gas stream is formed by a tubular housing containing a bed of particulate material, such as gravel. In one embodiment, particulate material is positioned in an upper portion of the hous... | 04/30/1996 |
| 5470365 | Smoke exhauster A smoke exhauster comprises a filtration member of a rectangular framelike construction. The filtration member is disposed in the smoke exhauster such that the periphery of the filtration member urges the inner wall of a stopping portion of the base board... | 11/28/1995 |
| 5415675 | Fragranced return air filters A fragrance return air filter is provided with an air filter for removing impurities from air being forced through the air filter and at least one fragrant impregnated sponge strip mounted on the air filter, so that a fresh clean scent can mix with the fi... | 05/16/1995 |
| 5348573 | Annular scrubber A scrubber having a housing and a pair of replaceable and removable perforated casings within the housing. Preferably, the casings are cylindrical and concentric forming an inner corespace inside the innermost casing and an annular fillspace between the c... | 09/20/1994 |
| 5328605 | Filter module A filtering module includes a housing consisting of an upper housing section and a lower housing section and a connecting member for connecting the upper and lower housing sections. The upper housing section has a first water port in a first end thereof a... | 07/12/1994 |
