Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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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 |
| 7331315 | Two-stroke engine with fuel injection A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of t... | 02/19/2008 |
| 7258087 | Air intake porting for a two stroke engine A two stroke engine of a particular configuration can have its power output increased by running bigger pistons and using ports in the piston skirt through which to conduct compressed air within the skirt through short passages in the cylinder housing that conduct t... | 08/21/2007 |
| 6499445 | Two-stroke engine A two-stroke engine including a cylinder body having an air intake and an air vent, a piston slidably positioned in a portion of the cylinder body and having an admission passage and an air channel located in an upper portion of the piston, a crankshaft r... | 12/31/2002 |
| 5429078 | Internal combustion engine having rotary engine body An internal combustion engine comprises a hollow rotary engine body, an axially opposite pair of main pistons capable of rotating with but slidably reciprocating relative to the engine body, a cam mechanism for causing the main pistons to make one full ro... | 07/04/1995 |
| 5359159 | Internal combustion engine An internal combustion engine has a crankcase and a cylinder with an outlet with a first flange. A muffler having an inlet with a second flange is connected to the outlet with the inlet. The muffler is formed as a unitary part. The first flange has a firs... | 10/25/1994 |
| 5133305 | Internal combustion engine having rotary engine body The present invention provides an internal combustion engine comprising a hollow engine body rotatable about a fixed shaft, a pair of pistons capable of rotating with but slidably reciprocating relative to the engine body, and a cam mechanism for causing ... | 07/28/1992 |
| 5050384 | Two-stroke cycle internal combustion engine A power plant has an internal combustion engine with piston backside pumping and a stroke of sufficient length to reduce the pressure of the combustion gases at the end of the power stroke to substantially a common inlet and exhaust pressure, extracting m... | 09/24/1991 |
| 4909204 | Construction of two-cycle engine lubricating system In a two-cycle engine lubrication system in which a crankshaft is supported on a pair of bearings in a crankcase, the crankshaft being sealed with seals mounted outwardly of the bearings and lubricating holes being provided along transfer passages which c... | 03/20/1990 |
| 4478180 | Crankchamber precompression type two-cycle internal combustion engine A crankchamber precompression type two-cycle internal combustion engine including cylinder assemblies of an even number consists of at least one pair of cylinder assemblies having working cycles with 180° phase difference, each cylinder assembly having a... | 10/23/1984 |
| 4473039 | Method and device for reducing intake noises and mechanical vibrations in slot-controlled 2-cycle internal combustion engines The invention relates to a method and an apparatus for reducing to a minimum the predominant full load noise of port-controlled, two-stroke internal combustion engines by constructing the lower suction port boundary and the lower piston boundary, so that ... | 09/25/1984 |
| 4469054 | Two-stroke internal-combustion engine An engine comprising one pair of scavenge ports alternately covered and uncovered by a piston, a richer air-fuel mixture and a leaner air-fuel mixture being separately fed into the cylinder from the scavenge ports, the richer air-fuel mixture flowing into... | 09/04/1984 |
| 4450794 | Two stroke engine A two-stroke engine is provided comprising at least one cylinder (1) in which is slidingly mounted a piston (2) which defines in this cylinder a combustion chamber (C) and a precompression chamber (P), the lateral cylindrical wall of the cylinder being pr... | 05/29/1984 |
| 4401063 | Fuel distribution system for an internal combustion engine A fuel distribution system for an engine (10) having the fuel nozzles (74) located downstream from the air intake reed valves (52) to prevent the operation of the reed valves (52) from effecting the dual flow to the combustion chambers (42) through the tr... | 08/30/1983 |
| 4373474 | Scavenging arrangement for a two-stroke internal combustion piston engine In a two-stroke internal combustion piston engine, a piston is reciprocally movable within an axially elongated cylinder. The piston has a bottom dead center position and in the region of this position, the cylinder has an exhaust opening and a number of ... | 02/15/1983 |
| 4353333 | Two cycle engine with augmented intake ports A two cycle engine has a cylinder, a piston axially slidably mounted in said cylinder, and through the wall of the cylinder an intake port, exhaust port, and scavenging port. These ports are respectively connected to intake, exhaust, and scavenging passag... | 10/12/1982 |
| 4332229 | Double intake, supercharging I.C. engine An I.C. engine has a block, the engine forming a bore and having a crankshaft. The engine includes: (a) first and second pistons that reciprocate in that bore, (b) connection structure interconnecting the pistons, the pistons operatively connected to the crank... | 06/01/1982 |
| 4328770 | Internal combustion engine with die castable loop transfer system An in-line, multi-cylinder, two-cycle loop charged engine 10 has transfer passages 21, 22, and 23 partially formed by cavities die-cast in the cylinder block 14. The transfer passages are completed by covers, 24 and 25 bolted to the block 14. An efficient... | 05/11/1982 |
| 3949554 | Heat engine A regenerative heat engine designed to produce power for the operation of equipment such as an artificial heart is disclosed. The heat engine includes a temperature control heat pipe located around the periphery of the engine cylinder and a temperature di... | 04/13/1976 |
