Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8176892 | Internal combustion engine The invention concerns an internal-combustion engine, the engine comprising an engine housing having a combustion chamber and a piston travelling within the combustion chamber along a path of movement delimited between an upper dead center position and a lower dead ... | 05/15/2012 |
| 8171911 | Internal combustion two stroke rotary engine system The invention provides the proper form for the rotary positive displacement internal combustion engine. The construction of the engines according to the invention is based on a specific form of four bar mechanism and features unique simplicity (only three moving par... | 05/08/2012 |
| 8056527 | Split-chamber rotary engine The split-chamber rotary engine includes a rotary power module having a case with a circular rotor installed therein. At least one, and preferably two or more combustion chambers are formed peripherally in the rotor. The generally circular rotor cavity of the case i... | 11/15/2011 |
| 7650871 | Rotary compressor and expander, and rotary engine using the same A rotary device for use with compressible fluids comprises a first rotation element mounted to rotate about a first axis and a casing having a surface enclosing at least a part of the first rotation element. An elongate cavity of varying cross sectional area is defi... | 01/26/2010 |
| 7338032 | Leverage utilizing bar for facilitating prying a flat member from a slender member A leverage utilizing bar for facilitating prying a flat member from a slender member. A head extends from a handle. The head engages under the flat member and functions as a fulcrum by engaging the slender member and thereby cause the head to pry the flat member fro... | 03/04/2008 |
| 6883473 | Radial motor/pump A radial motor or pump has a stator inside which a rotor rotates. The stator carries one or more radial cylinders in each of which a piston is slidable. The end of each cylinder or a ring slidable therein bears against and is a sealing rubbing fit with the internal ... | 04/26/2005 |
| 6588395 | Rotary internal combustion engine--designed for future adiabatic operation The engine includes a housing having a circular cavity with a rotatable flywheel defining a radially extending power piston(s) disposed therein. An abutment disc connects to a compression piston rotor and rotates synchronously with the flywheel. Compressi... | 07/08/2003 |
| 6347611 | Rotary engine with a plurality of stationary adjacent combustion chambers An engine system includes a plurality of adjacent expansion rotor housings each having a generally cylindrical expansion rotor cavity. The expansion rotor cavity of each expansion rotor housing is substantially aligned with the expansion rotor cavity of e... | 02/19/2002 |
| 5681157 | Rotary combustion unit for rotary internal combustion engine Disclosed is a rotary combustion unit for a rotary internal combustion engine usually cooperated with a cooperative compressor unit having a two-blade cam piston with a main shaft rotated in a cylinder, two spring-loaded reciprocating gate members recipro... | 10/28/1997 |
| 5251595 | Rotor engine The rotor engine of the present invention includes air compressing components and engine components provided with a combustion chamber. One of the air-compressing components is rotor air-compressing and the other is piston air compressing. Air intake groo... | 10/12/1993 |
| 4886024 | Rotary piston engine A rotary piston engine energizable by internal combustion having an engine assembly whereby expansion of gas for driving the engine occurs on the outer circumference of at least one rotary disc element in the engine assembly and generated power is taken a... | 12/12/1989 |
| 4617886 | Rotary engine Disclosed is a rotary internal combustion engine having a generally circular geometry in vertical cross section. The engine's rotor is circular, and it is disposed in a housing in two portions, each portion being a section of a different circle, the circl... | 10/21/1986 |
