Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 6941906 | Crankcase scavenged internal combustion engine A crankcase scavenged internal combustion engine includes a cylinder and a piston reciprocating along the cylinder wall. At least one auxiliary duct is arranged with an auxiliary port in the cylinder wall. An inlet is divided into: a fuel inlet leading to a fuel por... | 09/13/2005 |
| 5058535 | Parallel flow coolant circuit for internal combustion aircraft engines An improved cooling system for an internal combustion aircraft engine having horizontally opposed cylinders. The cooling system comprises a coolant design which delivers and removes coolant in a parallel circuit. The coolant flows from a common main coola... | 10/22/1991 |
| 4940026 | Internal combustion engine with balancing forces An internal combustion engine of the opposed cylinder type wherein piston and cylinder assemblies are located in directly opposed relation to one another such that vibration is significantly reduced or eliminated due to the placement, weight, volumetric d... | 07/10/1990 |
| 4584973 | Internal combustion engine The internal combustion engine has, arranged in pairs, cylinders offset in angle in relation to one another in the direction of the axis of rotation of its crankshaft. The engine block consists of two castings, each of which combines integrally in one pie... | 04/29/1986 |
| 4429668 | Internal combustion engine for portable machine A 2-cycle opposed cylinder internal combustion engine of simultaneous ignition type for portable machines such as grass trimmer. Two cylinders are provided at their same sides with intake ports and exhaust ports. In each cylinder, the intake port and the ... | 02/07/1984 |
| 4276858 | Two-cycle internal combustion engine A two-cycle internal combustion engine includes a power cylinder, a drive piston being positioned therein. A first transfer duct extends between an auxiliary cylinder, which is supplied with carburetted air and the power cylinder and opens thereinto via a... | 07/07/1981 |
