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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 7409943 | Engine braking method for a supercharged internal combustion engine In an engine braking method for a supercharged internal combustion engine, wherein combustion air, which is under boost pressure and is supplied to the cylinders under the control of engine inlet and outlet valves, is compressed in the cylinders and is subsequently ... | 08/12/2008 |
| 7287495 | Two-cycle engine In a two cycle engine, the bypass as well as the need for mixing fuel and oil are eliminated through the use of a separate compressor. A unique set of inlet and exhaust valves form an integral part of the system. These valve are used to optimize the performance of t... | 10/30/2007 |
| 7258093 | Concave combustion chamber An internal combustion engine is provided with a roughly concave cylinder head, wherein a ridge descends into the combustion chamber. A first wall is formed from the ridge to a cylinder periphery to form a seat for an air intake valve. A second wall is formed from t... | 08/21/2007 |
| 7152572 | Internal combustion engine A high thermal efficiency lean-burn spark-ignition two or four stroke engine operable unthrottled suitable for vehicles using gasoline. It uses an indirect combustion chamber and a transfer orifice aligned to produce a jet of air moving in helical swirl motion aroun... | 12/26/2006 |
| 7121232 | Method in an internal combustion engine and an internal combustion engine An internal combustion engine, Z-engine. The compression part and the working part are separated. New gas is transported to the upper side of the piston. Below there is a small chamber corner. When the piston comes nearer the upper hollow part, the combustion gases ... | 10/17/2006 |
| 6874453 | Two stroke internal combustion engine A two stroke internal combustion engine having a compressed air inlet port and an exhaust port the flow through which is controlled by suitable valves. Fuel is injected through a fuel injector. The timing of the opening of the valve is such that, as the piston appro... | 04/05/2005 |
| 6601549 | Two stroke homogenous charge compression ignition engine with pulsed air supplier A two stroke homogenous charge compression ignition engine includes a volume pulsed air supplier, such as a piston driven pump, for efficient scavenging. The usage of a homogenous charge tends to decrease emissions. The use of a volume pulsed air supplier... | 08/05/2003 |
| 6234126 | Engine valve control An engine having a cylinder, piston having a skirt having an actuating member, a upper rocker-arm being pivotally coupled to the intake valve, a first push-rod, said being pivotally coupled to the upper rocker arm, a lower rocker-arm being pivotally conne... | 05/22/2001 |
| 6196171 | Loop-scavenged two-stroke internal combustion engines A loop-scavenged two-stroke internal combustion engines with an intake valve (7) engaging a seat (10) for fresh air intake, and an exhaust valve (8) engaging a seat (13) for combustion gas exhaust, is disclosed. The valves are arranged in such a way that ... | 03/06/2001 |
| 5937816 | Combination carburetor backing plate and crankcase breather A combination carburetor backing plate and crankcase breather for a motorcycle engine having at least a pair of cylinders, a cylinder head mounted on each cylinder, and a valve for connecting each cylinder head to the crankcase for venting the same throug... | 08/17/1999 |
| 5819693 | Method for improving the operation of an air-scavenged supercharged heat engine, and heat engine therefor A method wherein a number of cylinders (2, 3; 1, 4) are grouped on a same exhaust gas manifold (8, 10) such that the pressure in the exhaust pipe (1e . . . 4e) undergoes time-dependent fluctuations of substantial amplitudes, and the exhaust valve (6) of a... | 10/13/1998 |
| 5778838 | Fuel supply device for crankcase chamber supercharged engine A four-cycle internal combustion engine wherein the piston connecting rod crankshaft and crankcase chamber are formed so that the crankcase chamber acts as compressor. An induction system supplies atmospheric air to the crankcase chamber and a pressure co... | 07/14/1998 |
| 5546898 | Device for controlling the flow of intake and exhaust gases in an internal combustion engine Disclosed is a device for controlling the flow of intake and exhaust gases in an internal combustion engine, which comprises a cylinder head with a plurality of cylinders each forming combustion chamber for burning air/fuel mixture to produce a mechanical... | 08/20/1996 |
| 5343839 | Two-stroke engine A two-stroke engine comprising two exhaust valves and two intake valves. These exhaust valves and these intake valves are arranged on the peripheral portion of the inner wall of the cylinder head, and one additional exhaust valve is arranged on the centra... | 09/06/1994 |
| 5271362 | Two-stroke engine A two-stroke engine comprising a spark plug arranged at the center of the inner wall of the cylinder head, and a fuel injector arranged on the periphery of the inner wall of the cylinder head. A depression extending from the point beneath the spark plug t... | 12/21/1993 |
| 5230312 | Two-stroke engine A two-stroke engine comprising three exhaust valves and two intake valves. These exhaust valves and these intake valves are arranged on the peripheral portion of the inner wall of the cylinder head, and one additional intake valve is arranged on the centr... | 07/27/1993 |
| 5203288 | Two-stroke internal combustion engines with a compression-ignition of diesel type In a two-stroke internal combustion engine with a compression-ignition of Diesel type, the exhaust valve or valves (10) are so arranged as to allow flow on at least the major part of their periphery; the piston (3) cooperates with the ceiling of the cylin... | 04/20/1993 |
| 5195486 | Two stroke diesel engine A two stroke diesel engine having a cavity in the cylinder head facing the combustion chamber, an intake valve and exhaust valve, a fuel injector, and a projection formed on the piston head. The intake valves and fuel injector are pointing toward the cavi... | 03/23/1993 |
| 5163395 | Two stroke diesel engine In a two stroke diesel engine which comprises a combustion chamber formed by a cylinder, piston head and base of the cylinder head, a cavity formed on the base of the cylinder head facing the combustion chamber, intake valves fitted to the cylinder head f... | 11/17/1992 |
| 5140958 | Two-stroke engine A two-stroke engine including a pair of intake valves. A masking wall is provided for each intake valve to mask the valve opening between the valve seat and the peripheral portion of the intake valve, which is located on the exhaust valve side, for the en... | 08/25/1992 |
| 5086735 | Reciprocating internal combustion engines of the two-stroke type The two-stroke cycle engine employing intake and exhaust valves comprises a combustion and scavenging prechamber having substantially a shape of revolution about an axis and provided with an intake valve seat. Deflecting means or vanes are disposed inside... | 02/11/1992 |
| 5063886 | Two-stroke engine A two-stroke engine having an intake valve and an exhaust valve arranged on an inner wall of the cylinder head, an intake passage connected to the cylinder via the intake valve, a fuel injection device arranged in the cylinder, for injecting fuel into the... | 11/12/1991 |
| 5062395 | Two-stroke internal combustion engine A two-stroke internal combustion engine provided with a masking wall (8a, 40b) which is disposed between an intake valve (6) and exhaust valve (7) disposed on a cylinder head inner wall surface (3a) and which closes the opening between the peripheral edge... | 11/05/1991 |
| 5014663 | Two-stroke internal combustion engine and cylinder head for the latter A two-stroke internal combustion engine, in particular of the diesel type, which comprises at least one intake valve (10) having its seat disposed in the wall of a combustion and scavenging prechamber (13) and at least one exhaust valve (7), is characteri... | 05/14/1991 |
| 5000126 | Vertical engine for walk-behind lawn mower A rotary lawn mower having an air-cooled single cylinder four-cycle internal combustion engine for powering its cutting blade. The engine is air cooled and is disposed so that its exhaust port lies above the intake port and the carburetor is positioned ab... | 03/19/1991 |
| 4995348 | Two-stroke internal combustion engines and process for operating said engines An engine, operating in accordance with the two-stroke cycle, is characterized in that the intake and exhaust timing elements are valves (7, 9). The control device for the valves is responsive to a parameter such as the speed of rotation of the engine, th... | 02/26/1991 |
| 4977863 | Air-cooled internal combustion engine having canted combustion chamber and integral crossover intake manifold An air-cooled internal combustion engine, a crankshaft and a camshaft rotatably journalled in the crankcase parallel to one another, and a cast intake valve chamber and cast exhaust valve chamber each cast integrally with the cylinder and communicating wi... | 12/18/1990 |
| 4945867 | Two-stroke engine A two-stroke engine including a pair of intake valves which are symmetrically arranged with respect to a symmetrical plane including the axis of the cylinder. A masking wall is provided for each intake valve to mask the valve opening between the valve sea... | 08/07/1990 |
| 4940029 | Turbocompounded two-stroke piston engines The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402) which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (... | 07/10/1990 |
| 4907544 | Turbocharged two-stroke internal combustion engine with four-stroke capability A two-stroke cycle internal combustion engine without crankcase scavenging is disclosed which is able to operate in a four-stroke mode at cranking and idle speeds. The engine utilizes a turbocharger driven by exhaust gases to recharge the cylinder with fr... | 03/13/1990 |
| 4879974 | Crankcase supercharged 4 stroke, 6 cycle engine A high power, fuel efficient, low-emission, four-stroke, 6 cycle method of operation. A primary intake conduit carries air or a lean mixture from the compression chamber (crankcase) to the combustion chamber. Fuel is added to the air or lean mixture as it... | 11/14/1989 |
| 4854280 | Two-stroke internal combustion engine and cylinder head for the latter A two-stroke internal combustion engine, in particular of the diesel type, which comprises at least one intake valve (10) having its seat disposed in the wall of a combustion and scavenging prechamber (13) and at least one exhaust valve (7), is characteri... | 08/08/1989 |
| 4840147 | Combustion chamber of a two-stroke engine A two-stroke engine having an intake valve and an exhaust valve which are arranged on the cylinder head. A masking wall is formed on the inner wall of the cylinder head to mask the valve opening between the valve seat and the peripheral portion of the int... | 06/20/1989 |
| 4821686 | Two-stroke internal combustion engine with cylinder head valves A two-stroke internal combustion engine comprising a cylinder head 14 having combustion chambers 18 with two intake valves 24 and two exhaust valves 26 arranged therein. Two intake manifolds 30 and 32, respectively, have branch pipes connected to each res... | 04/18/1989 |
| 4807579 | Turbocompounded two-stroke piston engines The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402) which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (... | 02/28/1989 |
| 4781154 | Two-cycle internal combustion engine A two-cycle internal combustion engine having three, or a multiple of three, cylinders comprises a cylinder head having an intake port and exhaust port opened to a combustion chamber, to which fresh air compressed by a supercharger is introduced via an in... | 11/01/1988 |
| 4732118 | Two-cycle internal combustion engine A two-cycle internal combustion engine comprises a cylinder head having an intake port and two exhaust ports opened to a combustion chamber, to which compressed fresh air is introduced via an intake valve. The intake valve and two exhaust valves are opera... | 03/22/1988 |
| 4732117 | Two-cycle internal combustion engine A two-cycle internal combustion engine comprises a cylinder head having an intake port and exhaust port opened to a combustion chamber, to which compressed fresh air is introduced via an intake valve. An inclined concavity is formed on a top face of a pis... | 03/22/1988 |
| 4660513 | Timing adjusted engine and conversion kit therefor A two cycle internal combustion piston engine is provided with cam controlled inlet valves, as well as exhaust valves, disposed in the head of the engine cylinder. The two cycle engine can perform with an expansion ratio greater than the compression ratio... | 04/28/1987 |
| 4616605 | Two-cycle engine with improved scavenging A two-cycle internal combustion engine having an "open" combustion chamber/poppet valve arrangement that produces improved scavenging. The combustion chamber has a generally oblate configuration and is slanted with respect to the cylinder axis in such a m... | 10/14/1986 |
