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Six-year-old Robert W. Patch granted a patent for a "toy truck".
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| Number | Title | Issue Date |
| 7266323 | Manifold for toner collection and contamination control in xerographic process developer housing An airborne toner collection manifold for an electrostatographic printer for coupling in fluid flow communication with a vacuum source includes an inlet, a collection duct, a first exhaust duct and a second exhaust duct. The inlet defines a gap slot extending longit... | 09/04/2007 |
| 7192469 | Exhaust treatment device, system and methods for internal combustion engines A device, system and methods related to the same are provided for the treatment of exhaust gases from internal combustion engines. An exhaust treatment device is provided comprising a chamber containing a liquid bath through which exhaust gases are directed for remo... | 03/20/2007 |
| 6821318 | Kitchen air filtration system An improved air filtration system is provided for a kitchen island so as to cleanse cooking vapors from the air. The system includes an updraft or downdraft air inlet vent for capturing, either individually or simultaneously, the vapor-containing air generated durin... | 11/23/2004 |
| 6551379 | Apparatus for use with a natural gas dehydrator Apparatus for use with a natural gas dehydrator wherein a portion of the wet glycol in an emissions separator is pumped under pressure as circulating wet glycol which may be used as a coolant for effluent removed from a reboiler and/or a power source for ... | 04/22/2003 |
| 6364933 | Apparatus for use with a natural gas dehydrator Apparatus for use with a natural gas dehydrator wherein a portion of the wet glycol in an emissions separator is pumped under pressure as circulating wet glycol which may be used as a coolant for effluent removed from a reboiler and/or a power source for ... | 04/02/2002 |
| 6179901 | Apparatus and method for producing HF from phosphate rock Hydrogen fluoride production apparatus removes phosphate rock dust from a hot gas mixture exhausted from a phosphate rock defluorination kiln; cools the hot gas mixture in a heat exchanger to a low enough temperature that it can be brought into contact wi... | 01/30/2001 |
| 5776215 | Machine for household cleaning An improved machine for household cleaning which has, in a box-like body, a vacuum-cleaner section composed of a fan that is coupled to an electric motor, the intake of the fan being connected to a dirt suction duct. In the vacuum-cleaner section, upstrea... | 07/07/1998 |
| 5275635 | Coastal air wash system A system for washing the air in a coastal environment in which a volume of air moves from a land mass to a water mass. The system includes a plurality of fountains 12 mounted offshore which spray a volume of water into the path of the air flow. Water is s... | 01/04/1994 |
| 5192344 | Wet filter vacuum cleaner A vacuum cleaner having a substantially cylindrical tank with a bottom, a cover which pneumatically closes the tank to define a vacuum chamber, an eccentric inlet and an outlet through the tank cover which define a pneumatic path through the chamber and a... | 03/09/1993 |
| 4720291 | Aero-hydraulic pollution control system A self-contained wet type pumpless gas pollution control and sludge-handling system, applicable for dusts, vapors, aerosols, mists and fumes, comprises the open-to-the-atmosphere liquid pollutant extractor (17) hydraulically interconnected with the gas po... | 01/19/1988 |
| 4372760 | Apparatus for removing particulate matter from a gaseous stream A method and apparatus for removing particulate matter from a gaseous stream, such as air, includes a hood having an inlet to receive the incoming stream containing the particulate matter and an open base spaced within defined limits from a receptacle con... | 02/08/1983 |
| 4300924 | Exhaust gas scrubber for internal combustion engines An exhaust gas scrubber includes a closed tank partially filled with a pool of water and a core assembly within the tank. The assembly includes a vertical cylindrical mixing tube open at its opposite ends and extending above and below water level, an upwa... | 11/17/1981 |
| 4213769 | Energy transfer and air purifying devices An energy transfer and air purifying device is provided, comprising a liquid bath, means for containing the liquid bath, the means including at least one opening therein, exhaust means in fluid communication with the liquid bath, the exhaust means partial... | 07/22/1980 |
| 4175933 | Dust filter apparatus Dust filter apparatus includes a filter panel and a nozzle spraying liquid into the gaseous flow upstream of the filter panel which comprises a plurality of layers each extending across the gaseous flow duct and at least alternate layers defining at least... | 11/27/1979 |
