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| Number | Title | Issue Date |
| 7412962 | Engine grass screen assembly A highly durable engine grass screen assembly is disclosed. The assembly includes a grass screen for covering an air intake port of the engine, a grass screen stiffening mechanism for supporting the grass screen, a washer mechanism for compressing the screen such th... | 08/19/2008 |
| 7387653 | Apparatus and method for removing particulates from a fluid stream An assembly for cleaning particulates from fluid streams has a primary and secondary centrifuge collectors and may employ negative pressure to produce the fluid stream. The primary centrifuge collector forms an outer vortex to remove larger particles, then an inner ... | 06/17/2008 |
| 7314495 | Process and device for eliminating the particles contained in a stream of fluid The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel. ... | 01/01/2008 |
| 7165942 | Fan impeller with integrated grease separation, especially for cooking appliance The disclosure relates to a fan impeller including a base plate and a plurality of fan impeller blades fixed to the plate. The fan impeller blades are positioned in an essentially vertical manner on the base plate and have a substantially radial arrangement, each fa... | 01/23/2007 |
| 6991664 | Intake system An intake system for the combustion air of a motor of a hand held implement is provided. The system includes an air filter and a centrifugal separator. The air filter has a dirt chamber and a clean chamber that is separated therefrom by a filter medium. The clean ch... | 01/31/2006 |
| 6948457 | Fan arrangement of a portable handheld work apparatus driven by an internal combustion engine A fan arrangement of a portable handheld work apparatus is driven by an internal combustion engine and includes a radial fan (1) which includes a fan wheel (5) and a spirally-shaped fan housing (6) which encloses the fan wheel (5) at leas... | 09/27/2005 |
| 6880516 | Intake system An intake system for preparing combustion air (1) is for an internal combustion engine of a portable handheld work apparatus. The intake system includes: a carburetor (2); an air filter (3) which is connected upstream of the carburetor (2... | 04/19/2005 |
| 6811687 | Vortex pool cleaner The present invention aims at improving pool cleaners. The improved pool cleaners utilize toroidal vortex technology to provide efficient fluid flow in a sealed system. The sealed system prevents dirt from escaping into surrounding fluid and retains kinetic energy o... | 11/02/2004 |
| 6699300 | Device for drying compressed air The invention relates to a device for drying compressed air comprising a substantially cylindrical, innerly hollow, container (19), provided, above, with an inlet hole (2) for the compressed air and with an outlet hole (24) for the compressed air, and at ... | 03/02/2004 |
| 6478838 | Airflow system An air treatment appliance for treating surrounding air including a body. A spider-mount mounted to the body has a motor mounted thereto in cantilever fashion. A fan attached to the motor may be a radial fan, and is operable to draw in surrounding air and... | 11/12/2002 |
| 6200361 | Multi-stage cyclone system for cleaning air A filtering system which essentially includes a generally cylindrical chamber with an inlet nozzle, having openings, located near the bottom of the chamber which extends into the chamber, an activator, a turbine with an axle, both the activator and turbin... | 03/13/2001 |
| 5914416 | Device for separating solid or liquid particles from a stream of gas In a device for separating solid or liquid particles from a stream of gas, there is an aperture of a suction pipe which is substantially directed towards the axis of an impeller. The suction pipe is surrounded by a dust collecting container. To improve ph... | 06/22/1999 |
| 5837020 | Room air cleaner A portable air cleaner designed to remove particles and unwanted gases from a room to provide for a healthier and cleaner environment. The portable air cleaner includes a high air volume circulating design and operates quietly and efficiently. The air exh... | 11/17/1998 |
| 5769912 | System and method of vapor recovery in industrial washing equipment A system and method for recovering vapors in industrial washing equipment, wherein a solvent is used to wash various articles within a wash area of the equipment. The system includes a hood supported above the wash area, a motor driven fan mounted within ... | 06/23/1998 |
| 5746160 | Hand-held working tool with combustion air channel arranged at blower housing A hand-held working tool has a housing and an air cooled internal combustion engine with cooling ribs positioned in the housing. A sealed carburetor box is connected to the internal combustion engine. A blower is positioned in the housing for supplying co... | 05/05/1998 |
| 5584899 | Fluid collection and filtration apparatus A collection apparatus for collecting oil or other liquids forcibly removed from a dirty item by directed air pressure includes a generally cubical metal receptacle having a wooden cover. The dirty item is placed in a duct-like construction in a front sid... | 12/17/1996 |
| 5526777 | Air inlet apparatus for internal combustion engine An air path is provided in the main body of a chain saw so as to connect an air inlet port provided on the main body and a carburetor chamber of the internal combustion engine and also connected to a cooling fan chamber. For use under normal conditions, c... | 06/18/1996 |
| 5485817 | Arrangement in an internal combustion engine A two-stroke internal combustion engine for a motor saw includes a crankcase (12), a fan housing (19) having an impeller (20), and a carburetor chamber (17) having a carburetor (16). An intake passage (15) connects the carburetor to the crankcase and the ... | 01/23/1996 |
| 5462484 | Clean-room ceiling module A module for the construction of a cleaning room ceiling has a housing wh can be fitted like a tile in the ceiling and which is divided internally into three chambers. A fan in an upper false floor draws air into the housing along an upper chamber which ... | 10/31/1995 |
| 5377383 | Attachment for a vacuum cleaner or a vacuum-cleaning pipe To vacuum up a fluid using a vacuum cleaner, there is provided an attachment (1) to which a vacuum cleaner hose (31) is connected. The attachment comprises a separation chamber (3) in which the vacuumed up liquid is separated from the suction air through ... | 01/03/1995 |
| 5363815 | Cooling air blower with combustion air channel A cooling air blower for a combustion engine for a two-stroke engine of a hand-held working tool has a cooling air channel for supplying cooling air to a combustion engine and a blower fan for conveying air into the cooling air channel. A combustion air c... | 11/15/1994 |
| 5343831 | Dynamic air cleaner and carburetor pressurization system for air cooled internal combustion engine A portable work producing apparatus, such as a chain saw, has an engine cooled by air from a blower driven by the engine. The engine's carburetor is pressurized with clean air from the blower. The blower includes a centrifugal impeller mounted within a fa... | 09/06/1994 |
| 5294410 | Gas purification and conditioning system Gas purification systems presently use air bleed from an engine and further remove carbon dioxide therefrom. The present gas purification and thermal conditioning system also bleeds from the engine, however; the gas is further partially filtered to remove... | 03/15/1994 |
| 5285751 | Engine air intake screen assembly An engine air intake screen assembly having a rotating screen is provided. A blade is positioned directly under the screen to scrape accumulated debris off the inside surface of the rotating screen, and to also chop debris flowing through the screen. The ... | 02/15/1994 |
| 5238468 | Collection device for gaseous emissions A collection device (10) for gaseous emissions which comprises a collector body (20) having a hollow interior (33) and an inner wall (22) shaped to conform to a portion of the outer periphery of the open top (14) of a material supply container (12). The i... | 08/24/1993 |
| 5231956 | Portable handheld work apparatus The invention is directed to a portable handheld work apparatus including a motor-driven chain saw, cutoff machine and the like. The work apparatus includes a housing and an internal combustion engine mounted in the housing for driving a work tool. The ho... | 08/03/1993 |
| 5200039 | Steam chamber for a water distiller with contamination prevention baffle and check valve A steam chamber has a bottom portion that defines a tray for holding water to be distilled and a top portion for collecting steam created in the chamber by heating the water in the tray. An outlet conducts steam from the top portion of the steam chamber t... | 04/06/1993 |
| 5158585 | Compressor unit and separator therefor A compressor unit in which the oil separated by a plurality of oil separators to a gas suction side pipe of the previous stage oil separator which contains gas whose oil concentration is higher than that of the gas from which oil has been separated, with ... | 10/27/1992 |
| 5055010 | Suction baffle for refrigeration compressor A hermetic refrigeration compressor is disclosed which includes a baffle member secured to the inner surface of the outer shell in overlying relationship to a suction inlet port. The suction baffle includes a dome shaped portion centrally disposed with re... | 10/08/1991 |
| 5046458 | Air-cooled engine flywheel fan rotational debris inlet screen An air-cooled internal combustion engine having a rotating screen and a blower housing surrounding the screen. A ring is attached to the housing and positioned circumjacent the screen to define a precisely gauged radial clearance gap between the ring and ... | 09/10/1991 |
| 4838908 | Engine air intake screen assembly An engine intake screen assembly is provided. A rotatable screen has a continuous peripheral skirt which telescopes with an upstanding housing ring-like flange so as to create a serpentine entry path for grass and other foreign matter trying to enter at t... | 06/13/1989 |
| 4798613 | Surface cleaning apparatus A portable vacuum surface cleaning apparatus for taking up and recovering fluids such as liquids and debris from floors or carpets that includes an elongated circuitous or convoluted passageway having an inlet at one end and an outlet at the other end ada... | 01/17/1989 |
| 4710105 | Liquid-ring compressor unit Fluid-ring compressor unit having a horizontal shaft and a compressor housing in which, subsequent to the compressor stage, a pressure chamber is made in connection with a pressure connecting piece. The pressure chamber is divided up by a wall, which proj... | 12/01/1987 |
| 4681189 | Dry sump lubrication system for an internal combustion engine A dry sump lubrication system for an internal combustion engine which includes a cam housing, a crankcase and an oil sump therein. The lubrication system includes an oil tank, a conduit connecting the oil tank to the engine and an oil pump for pumping oil... | 07/21/1987 |
| 4486153 | Refrigerator with encapsulated motor compressor A refrigeration compressor is provided with a combined sound dampening and centrifugal liquid separator chamber.... | 12/04/1984 |
| 4470778 | Scroll type fluid displacement apparatus with oil separating mechanism A scroll type fluid displacement apparatus including a housing divided into a discharge chamber and a suction chamber is disclosed. A fixed scroll member is disposed within the housing and comprises a first end plate and a first wrap which extends from on... | 09/11/1984 |
| 4441871 | Rotary compressors with primary and secondary oil separation means An air compressor wherein oil mist lubricates a rotor stator in the compressor casing whereby an oil mist is produced in the compressed air provided with primary and secondary oil removal sections. The primary and secondary oil removal sections are connec... | 04/10/1984 |
| 4324573 | Apparatus for removing oil from compressed air An oil separator connected to a machine operating with pulsating compressed air for separating an oil mist which is otherwise expelled together with the air and is let out in the ambient atmosphere when the compressed air is drained from the machine, the ... | 04/13/1982 |
| 4265643 | Air purifier An air purifier which includes an air intake with electrically charged plates for ionizing particles of smoke, dust, and impurities entrained in the air, a fan or other air-moving device to move the polluted air through the intake and over the ionizing pl... | 05/05/1981 |
| 4263029 | Oil reclaimer and muffler assembly and system A vacuum system includes a vacuum pump, means to provide a flow of lubricant oil to the vacuum pump, and an oil reclaimer and muffler assembly to remove oil that becomes entrained in the gas stream leaving the pump and to permit such oil to be resupplied ... | 04/21/1981 |
