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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 |
| 7918195 | Air-cooled engine heat extractor A heat extractor for attachment to an air-cooled engine. A cooling fan extends from the engine and is rotated by action of the engine. The heat extractor comprises a first thermally conductive surface for attachment to the engine, a plurality of flaps extending from... | 04/05/2011 |
| 7694655 | Engine The purpose of the present invention is to improve cooling efficiency of a cylinder head of an air-cooled engine. With regard to the construction that a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylin... | 04/13/2010 |
| 7594484 | Blower housing for internal combustion engine A blower housing for use with an engine. The blower housing is adapted to receive a stream of intake air, and the engine includes at least one cylinder. The blower housing includes an intake opening, an air filter housed within a filter compartment, and an air flow ... | 09/29/2009 |
| 7559297 | Portable Engine A portable engine, comprising an engine casing, an air deflector cover, a fan and an exhaust pipe; a left upper baffle plate and a right upper baffle plate at the upper part of the engine constitute two left and right upper air ducts together with a cylinder head co... | 07/14/2009 |
| 7549403 | Engine generator An engine generator can have an engine duct for releasing to the outside a cooling air which is used to cool an engine and a muffler, and a generator duct for releasing to the outside a cooling air which is used to cool a generator. The engine duct and the generator... | 06/23/2009 |
| 7523726 | Air-cooled V-shaped engine An air-cooled V-shaped engine comprises a throttle body (10) and a flow-dividing plate (9) arranged ahead of a central cooling-air passage (8). The flow-dividing plate (9) is provided in a fan case (5) at a position forwardly of th... | 04/28/2009 |
| 7513223 | Engine-driven work machine An engine-driven work machine is provided in which an engine/work machine unit (5) is housed in a box (30) and a cooling fan (15) for generating a flow of cooling air from an air inlet (39) to an air outlet (40) via the surrounding... | 04/07/2009 |
| 7458343 | Atmospheric pollutant treatment structure To allow pollutants contained in atmospheric air to be treated effectively at all times during operation of a vehicle. A catalyst layer for treating atmospheric pollutants is formed on at least a surface of cooling fins provided on a cylinder portion of an engine mo... | 12/02/2008 |
| 7412961 | Intake device To improve an intake device (100) for a handheld tool implemented having an air cleaner, particularly for a chainsaw, a cuffing-off grinder, or the like, which comprises an internal combustion engine (25) and a drive unit (20) for the attachment... | 08/19/2008 |
| 7409931 | Forced-air-cooled engine equipped with cooling air guide cover A forced-air-cooled engine has a main blow-out opening provided to a back plate of a cooling fan cover at a position facing a cylinder part for blowing out cooling air for cooling a cylinder part and a secondary blow-out opening provided to the back plate at a posit... | 08/12/2008 |
| 7406958 | Snow remover The snow remover has a cooling fan for directing cooling air to an engine, and an air cleaner. The air cleaner has an air intake for drawing in outside air. The cooling fan and the air intake of the air cleaner is housed within the engine cover. Cooling air is chang... | 08/05/2008 |
| 7392770 | Cooling system of an engine for the inside of a generator The present invention relates to a cooling system for an engine inside a power generator, in the field of the power generator, which mainly includes a cool air suction hood, an engine housing side cover, an engine housing, a cool air cooling fan, an exhaust pipe; th... | 07/01/2008 |
| 7370388 | Air cleaner for portable engine An air cleaner for a portable engine, includes an air cleaner case attached to an upper part of an engine body of the engine. Preferably, the air cleaner case is supported on an upper wall of a shroud covering the engine. Preferably, the air cleaner case is formed i... | 05/13/2008 |
| 7363886 | Power unit To achieve improved cooling in a power unit, a first fan is coupled with an end of a crankshaft of an internal combustion engine to cool at least a cylinder of the internal combustion engine, and a second fan is coupled with another end of the crankshaft to cool at ... | 04/29/2008 |
| 7325519 | Engine operated generator An engine operated generator is provided with an engine, a generator driven by the engine, and a power control unit for controlling the power generated by the generator. A fuel gas stored in fuel bottles set in a case for the engine operated generator, is supplied t... | 02/05/2008 |
| 7322319 | Fan assembly A fan assembly for an agricultural tractor includes a rotatable fan mechanically driven by a drive shaft coupled to an internal combustion engine. A fan shroud encloses the outer periphery of the fan and is mechanically connected to the engine. A bearing is mounted ... | 01/29/2008 |
| 7314397 | Standby generator An exhaust system for an engine that produces an exhaust gas during operation. The exhaust system includes a manifold in fluid communication with the engine to receive the exhaust gas and a conduit extending from the manifold in a first direction. An outlet manifold... | 01/01/2008 |
| 7311067 | Implement A manually operated implement comprising a housing for accommodating a drive motor that drives a tool. A fan wheel is disposed in the housing and is driven by the drive motor. A fan wheel cover covers the fan wheel toward the outer side of the housing. Ribs are disp... | 12/25/2007 |
| 7284508 | Intake air and carburetor heating arrangements for V-twin engines A V-twin engine having a crankcase and a pair of cylinders defining a V-space therebetween, wherein the V-space is substantially enclosed, and a carburetor is positioned within the V-space. An intake air preheating arrangement supplies heated intake air to the carbu... | 10/23/2007 |
| 7284509 | Forced-air-cooled engine with cooling air guide cover The invention provides a method and construction of vibration control supporting a cooling fan cover. In a forcer-air-cooled engine having a cooling fan cover fixed directly by means of fixing bolts to the cylinder block at fixing foot parts provided at a peripheral... | 10/23/2007 |
| 7225765 | Engine assembly The present invention provides an engine assembly including an engine housing, a fan that generates an airflow, a fan housing at least partially covering the engine housing and the fan to direct the airflow over the engine housing, and a fuel tank including a plural... | 06/05/2007 |
| 7204329 | Under-hood engine air intake system An engine air intake system includes an engine air intake device and a plenum cooling compartment that is separate from the engine compartment by a baffle. A fan draws outside ambient air into the plenum cooling compartment and out of the plenum cooling area via a h... | 04/17/2007 |
| 7168516 | Air cleaner device in vehicle An air cleaner device for a vehicle is provided with an air cleaner body containing an air cleaner element and a snorkel connected to the air cleaner body to introduce the outside air into the air cleaner body. The snorkel extends forward of the vehicle past a side ... | 01/30/2007 |
| 7152590 | Superstructure of engine With regard to a construction that a fan 41 is provided at one side of an engine 1 and covered by a fan casing 45, and an air cleaner 30 is arranged near the fan casing 45 and at a side of a cylinder head 5 on which an intak... | 12/26/2006 |
| 7150496 | Panel structure for car body hood A hood structure comprises an outer and an inner which form a closed cross section through spaces. The inner's cross-sectional shape is a sine curve, an nth-power-raised sine curve, or a spline curve having a corrugation length approximate to an outside head diamete... | 12/19/2006 |
| 7107943 | Engine-driven operating machine A soundproof engine-driven operating machine has a small installation area, is easy to assemble and disassemble, and has superior cooling effects. The soundproof engine-driven operating machine includes an engine, an operating machine main body that is driven by the... | 09/19/2006 |
| 7096859 | Carburetor arrangement of a portable handheld work apparatus A carburetor arrangement of a portable handheld work apparatus includes a carburetor (1) which is fixed to a motor housing (4) of the work apparatus by elastic support elements (2, 3). A warm air channel (5) is provided for conducting war... | 08/29/2006 |
| 7089889 | Generator having a plastic frame A generator having a plastic frame. The frame includes plastic panels surrounding the engine and alternator assembly for the generator, providing an enclosure for the engine and alternator assembly and permitting additional features to be added to the frame without ... | 08/15/2006 |
| 7080611 | Engine-driven work machine An engine-driven work machine enables the work machine and its electrical components to be properly cooled. An engine-driven work machine comprises an engine, a work machine driven by an engine, and electrical components belonging to the work machine, and supplies a... | 07/25/2006 |
| 7077078 | Engine cooling structure In an engine cooling structure, an engine cover defines together with a cylinder a space connected through a cooling air inlet to a cooling air supply device. An exhaust muffler has an exhaust gas discharge opening formed near a back end part of a side, which is opp... | 07/18/2006 |
| 7063050 | Engine-driven handheld vacuum/blower In an engine-driven handheld vacuum/blower, a first grip is provided as one part of an outer shape of an engine casing in which an engine is mounted, and a second grip is formed on a fuel tank which forms another part of the outer shape of the engine casing. The fir... | 06/20/2006 |
| 7051786 | Vertical airflow engine cooling system A non-rail off-road vehicle, such as an agricultural tractor having an engine with a horizontally oriented rotation axis and a hood covering the engine, includes a cooling system. The cooling system includes an engine cooling radiator positioned above the engine and... | 05/30/2006 |
| 7040578 | Locking the cowl doors of a turbojet Turbojet cowl doors have bottom longitudinal edges fitted with hooking means and with locking means which comprise catches fixed on a rotary drive shaft carried by one of the doors and which co-operate with hooking members hinged about an axis on the other one of th... | 05/09/2006 |
| 7040837 | Self-propelled road milling machine with cooling system A self-propelled road milling machine is equipped with a cooling system comprising a fan for drawing in air, a cooler, and a suction channel. The suction channel has a vent opening facing the cooler and an intake opening. In relation to the longitudinal axis of the ... | 05/09/2006 |
| 7023101 | Air cooling generator A generator includes a housing, an engine, a first main impeller rotatably mounted in the engine, a first secondary impeller rotatably mounted in the housing and located outside of the engine, a generating body, a second main impeller rotatably mounted in the genera... | 04/04/2006 |
| 6994068 | Antivibration device An antivibration device is mounted between a motor unit (1) having an internal combustion engine (2) and a vibration-insulated unit (3) of a portable handheld work apparatus (4) such as a motor-driven chain saw, cutoff machine, suction/bl... | 02/07/2006 |
| 6979912 | Engine-driven generator A power generator incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. A fan draws in cooling air through one or more cooling air vents ... | 12/27/2005 |
| 6978751 | Cam follower arm for an internal combustion engine A valve train in an internal combustion engine, and a method of adjusting the valve timing setting of a valve in such a valve train, are disclosed. In one embodiment, the present invention relates to an engine that includes a crankcase with a cylinder, a valve, a pu... | 12/27/2005 |
| 6975042 | Engine-driven generator A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. An engine crankcase cover mounts the generator close to the ... | 12/13/2005 |
| 6952056 | Generator including vertically shafted engine A generator positionable on a support surface and including a frame, an internal combustion engine coupled to the frame, an electrical energy source, a fuel tank, and an output unit. The one-piece mounting member is coupled to the frame and has mounting arms that ea... | 10/04/2005 |
