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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 |
| 7311745 | Device for heating and/or demisting a vehicle A heater and/or demister device D for installing in a heater and/or demister circuit of a vehicle. The device D is provided with a fan 7 for producing a flow of warm air from a flow of ambient air and a flow of compressed hot air taken from an engine of the v... | 12/25/2007 |
| 7147039 | Air routing device for a motor vehicle air conditioning or heating system An air routing device for a motor vehicle air conditioning and/or heating system, comprising an air routing housing on which a blower is arranged, wherein the air routing device is formed separately from the air routing housing and can be pushed into the air routing... | 12/12/2006 |
| 6974487 | Cooling air cleaning device for a harvesting machine A device for cleaning a perforated radiator cage with at least one end face and peripheral side on an agricultural harvesting machine, wherein the device consists of an external brush which is associated with the radiator cage and which is in turn surrounded by a un... | 12/13/2005 |
| 6818044 | Process for recovery of subliming substance The present invention relates to a process for recovering subliming substances, which deposit in the form of crystals, from a subliming substance-containing gas by combining a cooling operation for lowering the temperature of collecting tubes for the deposition of c... | 11/16/2004 |
| 6712885 | Siloxane removal system A method and apparatus for continuously removing siloxanes and H2O from a waste gas stream containing H2O and siloxanes includes cooling the waste gas stream in a primary heat exchanger to a temperature of greater than 2° F. to condense a port... | 03/30/2004 |
| 6368389 | Method for separating vaporous phthalic acid anhydride from a gas stream Phthalic acid anhydride is recovered from a gas stream containing phthalic acid anhydride vapors by passing the gas stream upwardly through a vertical tube so that the gases expand at the orifice at the upper end of the tube and mix with granules entraine... | 04/09/2002 |
| 6171353 | Apparatus for treating waste gases Disclosed is an apparatus for effectively treating waste gases which are discharged during a processing of manufacturing semiconductors. The apparatus for treating waste gases according to an embodiment of the present invention comprises a waste gases hea... | 01/09/2001 |
| 5853437 | Self-cleaning and self-sealing particle filter A self-cleaning particle filter for Diesel engines is provided. The filter includes a filter housing, control circuitry, a removable filter cartridge and independent power source. The removable filter cartridge includes a number of sintered metal strips s... | 12/29/1998 |
| 5813451 | Apparatus for heat transfer from dust laden gases to fluids The present invention relates to an apparatus for heat transfer from hot particulate laden gas to a coolant fluid within a heat transfer tube. The apparatus is comprised of layers of vertically aligned strips which are offset at an angle to adjacent layer... | 09/29/1998 |
| 5676197 | Mounting for drive mechanism of heat exchanger screen cleaning wand A self-propelled windrower includes an engine compartment containing an engine-driven fan for pulling cooling air through a screen covering a circular air inlet leading into the compartment. The fan also is coupled for creating a suction in an air duct ex... | 10/14/1997 |
| 5616156 | Device for the cleansing of the flue gases from waste incineration installations The device is provided with a cyclone connected to the incineration installation intended for the collection of flyash, a heat exchanger to which the cyclone is connected and intended for the reduction of the temperature of the collected flue gases and th... | 04/01/1997 |
| 5482537 | Gas filtering apparatus Either atmospheric or superatmospheric pressure high temperature gases, e.g. from a fluidized bed reactor, are filtered in an upright outer vessel having at least one upright inner vessel within it. The inner vessel has gas-impervious peripheral walls and... | 01/09/1996 |
| 5250090 | Separation devices Embodiments of this invention include devices for removing particles, such as the fly ash from gaseous effluent produced by the combustion of pulverized coal, comprising arrays of ceramic rods that are contained within a housing having ingress and egress ... | 10/05/1993 |
| 4764190 | High temperature, high pressure gas filter system A filtering apparatus for separating particulates from high temperature, high pressure gas streams has a vessel divided into upper and lower chambers by a tubesheet, the tubesheet having a flexible support means with the rim thereof resting in a groove in... | 08/16/1988 |
| 4624689 | Pneumatic shock wave generator for cleaning filter cartridges Effluent with entrained particles is drawn through a filter module (A) by an exhaust blower (B). The filter module includes an inertial separator (C) for providing an inertial separation of particles from the effluent air and a plurality of filter cartrid... | 11/25/1986 |
| 4443236 | Self-cleaning screen for the cooling air inlet of an engine enclosure In a self-propelled combine, an engine cooling air screen is cleaned continuously by a rotating exhaust sweep moving close to its external surface. The sweep is in the form of a duct with one side open to the screen. Air is drawn into the sweep and exhaus... | 04/17/1984 |
| 4233040 | Self-cleaning rotary filter for the cooling air inlet of an engine enclosure The engine of a self-propelled combine is mounted in an enclosure having an inlet through which cooling air is drawn by an engine-driven fan. The air is filtered by a rotating disk-like screen mounted over the air inlet before passing through a radiator a... | 11/11/1980 |
