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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7380527 | Internal combustion engine The invention concerns an internal-combustion engine, the engine comprising a first combustion chamber, a first piston displaceably guided in the first combustion chamber, the first piston facing the first combustion chamber with a first piston surface in a first di... | 06/03/2008 |
| 6830030 | Four-cycle engine A four-cycle engine wherein a fuel-air-oil mixture is compressed in a crank case chamber and directed therefrom along a pathway to a combustion chamber. The pathway contains actuating mechanism for actuating the fuel intake valve leading to the combustion chamber. T... | 12/14/2004 |
| 6796286 | Piston engine A piston machine has at least one axially movable piston in a cylinder. At the top of the cylinder there is at least one intake valve and at least one exhaust valve. An injection port is provided in a cylinder wall between a lower and upper point of reversal of the ... | 09/28/2004 |
| 6561159 | Crankcase inducted self-supercharging four cycle internal combustion engine A crankcase inducted self-supercharging four-cycle internal combustion engine that uses cylinder pairs as an induction pump. The cylinder pairs are arranged in a 360-degree crank throw so that both pistons rise and fall together. The system uses two valve... | 05/13/2003 |
| 6338328 | Crankcase inducted self-supercharging four cycle internal combustion engine A crankcase inducted self-supercharging four-cycle internal combustion engine that uses cylinder pairs as an induction pump. The cylinder pairs are arranged in a 360-degree crank throw so that both pistons rise and fall together. The cylinders are synchro... | 01/15/2002 |
| 6145484 | Four-cycle engine having improved lubricating mechanism A four-cycle engine in which a mixed gas of a fuel and air containing a lubricating oil is transferred from a carburetor to a cylinder or a crank chamber, the gas is pushed out in the stage of descending the piston to the passage on the reverse side, tran... | 11/14/2000 |
| 6055959 | Engine supercharged in crankcase chamber Several embodiments of crankcase compression supercharged four-cycle internal combustion engines. Supercharger pressure is controlled by bypassing pressurized gases from the crankcase back to the crankcase downstream of a check valve that permits flow int... | 05/02/2000 |
| 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 |
| 5230314 | 4-Cycle engine A 4-cycle internal combustion engine including a crankcase, a cylinder, a cylinder head, a piston adapted to reciprocate within the cylinder, a combustion chamber formed by the piston, the cylinder and the cylinder head, and a crankshaft connected to the ... | 07/27/1993 |
| 4838214 | Internal combustion engine assembly An internal combustion engine having a sleeve valve wherein the sleeve valve is the cylinder sleeve of a respective cylinder whereby a very simple reciprocation and oscillation of the sleeve valve may be effected by means of a rotary valve which controls ... | 06/13/1989 |
| 4736715 | Engine with a six-stroke cycle, variable compression ratio, and constant stroke An engine comprises an output shaft journalled in a crankcase for rotation about an axis, an even number of cylinders, each having its axis parallel to the shaft axis, arranged in diametrically opposite pairs radially equidistant from the shaft axis and e... | 04/12/1988 |
| 4715336 | Four-stroke internal combustion piston engine A four-stroke internal combustion piston engine includes at least two cylinders disposed in axial alignment opposite on another. Each cylinder has a piston axially reciprocal therein with the pistons in the two cylinders operating with a phase shift of 18... | 12/29/1987 |
| 4708107 | Compact pressure-boosted internal combustion engine A combustible mixture is compressed in the crankcase of a four-stroke cycle engine and forced into a boost plenum which houses the camshaft. The compressed mixture is metered by a throttle to intake valves of the engine. The engine is constructed from ide... | 11/24/1987 |
| 4558671 | Supercharged engine A four-stroke internal combustion engine is supercharged by admitting fuel-air mixture into the engine crankcase and compressing the mixture on the down stroke of the piston. The engine cylinder, and the piston disposed therewithin, are of stepped configu... | 12/17/1985 |
| 4475499 | Inlet tuning of crankcase supercharged four cycle engine A crankcase supercharged four cycle engine (10) includes an outside air inlet port (22) positioned so that upon each expansion stroke of the piston (11) a discrete pulsed charge of pressurized air is fed to the crankcase (15), and hence from the crankcase... | 10/09/1984 |
| 4461251 | Crankcase supercharged four cycle engine with jet pump assist A crankcase supercharged four cycle engine (10) includes an outside air inlet port (22) positioned so that upon each expansion stroke of the piston (11) a charge of pressurized air is fed to the crankcase (15), and hence through a one-way valve (25) and n... | 07/24/1984 |
| 4392459 | Four stroke thermal engine capable of temporary boost The invention relates to a thermal engine provided with inlet and exhaust valves and with a system for controlling said engine comprising a computer which regulates opening and closure of said valves and which imposes on said engine an operation close to ... | 07/12/1983 |
| 4300506 | Fuel supply system A fuel supply system for supplying fuel and for satisfactorily preparing the fuel-air mixture fed to a mixture-compressing, spark-ignited internal combustion engine which comprises an arbitrarily operable throttle element arranged in the air intake manifo... | 11/17/1981 |
| 4038954 | Multi-cylinder internal combustion engine A method of operating an internal combustion engine having one or a plurality of cylinders with piston means movable therein wherein a controlled quantity of compressed air is introduced into the combustion chamber when the piston is substantially in its ... | 08/02/1977 |
| 4027632 | Air injection engine The improvement in a combustion engine of the conventional type includes air inlet means disposed in the vicinity of an end of the cylinder facing away from the spark plug for receiving air into the cylinder, and a first plate attached to the cylinder in ... | 06/07/1977 |
| 3955544 | Internal combustion engine A cylinder has a head and a bottom. A piston is reciprocable in the cylinder and defines a power chamber with said head and an air compression chamber with said bottom. Controlled intake and exhaust ports are formed in said cylinder and adapted to communi... | 05/11/1976 |
