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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7326266 | Coalescing type filter apparatus and method A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the inner chamber and the outer chamber. The drain device contains a pres... | 02/05/2008 |
| 7266958 | Water separator for air-conditioning systems The invention relates to a water separator for air-conditioning systems, preferably for aircraft air-conditioning systems, comprising a swirl generator, a housing surrounding it, a separation chamber arranged around the housing for the collection of the water separa... | 09/11/2007 |
| 7244285 | Filter body for particle filter In a filter body for a particle filter with a filter part, comprised of a gas-permeable support material coated with a sintered metal powder, and with a connection part connected with the filter part and provided for welding together with a holding element, the filt... | 07/17/2007 |
| 7238216 | Variable flow inertial gas-liquid impactor separator An inertial gas-liquid impactor separator has a variable flow actuator for varying cumulative gas-liquid flow through acceleration nozzle structure in response to a given parameter. ... | 07/03/2007 |
| 7150431 | Electrical generator fluid-flow-coolant filtration A ventilating and particle-filtering airflow system, and related methodology, for managing the flow of air to the brush region of an on-board aircraft (vehicle) electrical generator. Conduit structure collects intaken air during aircraft (vehicle) engine operation, ... | 12/19/2006 |
| 7121533 | Air filter housing with tamper resistant carburetor feature A device for a power tool that includes an internal combustion engine and a carburetor for supplying an air and fuel mixture to the engine. The carburetor includes at least one externally adjustable component. An air filter arrangement of the device is for in-taking... | 10/17/2006 |
| 6984252 | Method of and apparatus for collecting dust, development apparatus, and image formation apparatus A dust collection apparatus includes a container and a suction pump that sucks dust and transports it into the container. A filter is provided on a side surface of the container. This filter passes air but prevents passage of the dust in the container. A pressure de... | 01/10/2006 |
| 6669750 | Access port for house vacuum equipped with removable trap An access port for a house vacuum system that is equipped with a removable trap is described. The access port can be constructed by the components of a port body of elongated, cylindrical shape, which may have either an annular cross-section or a rectangu... | 12/30/2003 |
| 6093228 | Method and device for collecting by-products individually A method and a device for collecting by-products individually, applied to the semiconductor manufacture factory, is disclosed. The device, adapted to be used to filter a fluid accompanied with an object, for retaining the object therein includes a body, a... | 07/25/2000 |
| 6090183 | Method and apparatus for processing exhaust gas produced during manufacturing of semi-conductor devices A method for processing an exhaust gas produced during manufacturing of semiconductor devices including the steps of introducing a thermally disintegrable or thermally oxidizable exhaust gas produced during manufacturing of semiconductor devices into a pr... | 07/18/2000 |
| 5536298 | Method of treating fine particle dust in manufacturing process of semiconductor elements and apparatus therefor In a method of treating a fine particle dust in a manufacturing process of semiconductor elements wherein the fine particle dust is separated and collected from an air which includes the fine particle dust produced from a source of generating the fine par... | 07/16/1996 |
| 5385592 | Filter device for compressed air A filter device for compressed air including first and second filters, wherein the first filter is free from a variation in the filtering efficiency, and does not require periodic replacement of its packing, leading to a reduced maintenance cost of the fi... | 01/31/1995 |
| 5372621 | Condensate trap for vapor extraction system A condensate trap for use in a Vapor Extraction System (VES), which uses negative pressure to extract contaminated vapors from soil, is disclosed. The trap includes a vapor tight vessel, part of which acts as a condensate reservoir. One or more mist elimi... | 12/13/1994 |
| 5275644 | Steam separating apparatus A liquid-vapor separator for two-phase fluids in general and specifically a steam-water separator in a steam drum of a steam generator includes axial or radial spinner blades to create a centrifugal motion which causes liquid to be forced outward against ... | 01/04/1994 |
| 5215724 | Sintered composite filter A filter for removing impurities from waste gases, and especially from the waste gases of an internal combustion engine, includes a filter body consisting of a plurality of compression moulded, high temperature resistant, sintered filter plates consisting... | 06/01/1993 |
| 4767424 | Column for removing liquid from a gas A column for separating a liquid from a gas by means of a horizontal liquid coalescer and a centrifugal liquid separator is improved by positioning the coalescer below the centrifugal separator and extending both these devices over the whole cross section... | 08/30/1988 |
| 4668254 | Gas/liquid/solids separator The apparatus separates exhaust fumes of an internal combustion engine into gas, liquid, and solids and comprises a container having an internal wall for substantially reducing the velocity of fumes fed into the container and allows the liquid and solids ... | 05/26/1987 |
| 4566883 | Apparatus for gas/liquid separation An apparatus for separating gas/liquid mixtures comprising an outer vessel having an inlet and separate gas and liquid outlets. A plurality of gas/liquid separating units are mounted in a horizontal tubesheet disposed in the vessel. Each separating unit h... | 01/28/1986 |
| 4385912 | Apparatus for extracting liquid and foam from gas A liquid/gas separator for removing entrained liquid from a gas stream is mounted in the wall of a liquid holding tank and extends at least partially within the tank. The separator includes a gas circulation pathway and has a plurality of inlets through w... | 05/31/1983 |
| 4361423 | Combination acoustical muffler and exhaust converter A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising an elongated hollow cylinder adapted to be connected to a source of exhaust gas, screen means positioned at a plurality of longitudinally spaced lo... | 11/30/1982 |
| 4350504 | Air cleaning system A cooking unit having a hood equipped with air cleaning structures and blowers for moving air through the cleaning structures. The air cleaning structures include a pre-filter having spaced baffles for collecting air borne greases and particles. A primary... | 09/21/1982 |
| 4334899 | Snap filter grill and assembly A filter assembly for use especially with air conditioning and heating ducts, comprising first and second rectangular frames, the latter frame being detachably positioned in the first one, and a filter element sandwiched between the rear end of the second... | 06/15/1982 |
| 4283209 | Separator for separating out particles of fatty substances from a gas current, more specifically from waste air from kitchens, and a waste air duct for the separator A separator for removing oil or fat particles from waste air, more specifically from a catering kitchen, has a system of generally parallel rods normal to the direction of the waste air current. The rods are distributed across the full cross-section of th... | 08/11/1981 |
| 4255173 | Lead filter for internal combustion engine exhaust gases An automobile type exhaust gas lead filter is particularly applicable to diesel engine smoke reduction. It has a tubular housing with alumina coated metal wire fibers as the filter bed, which is centrally located. There are open spaces forming plenums at ... | 03/10/1981 |
| 4234327 | Compressed air system having an air dryer An air dryer of a compressed air system includes a vertical cylindrical tank with a downwardly directed entry pipe therein having a terminal to form liquid droplets on the bottom thereof. The tank has a manual drain valve on the bottom. A baffle near the ... | 11/18/1980 |
| 4158449 | Inlet air cleaner assembly for turbine engines An inlet air cleaner assembly is provided for the air intake of gas turbine engines comprising, in combination, an array of vortex air cleaners removing coarse and heavy contaminant particles, but not light and well dispersed contaminant particles, and an... | 06/19/1979 |
