Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7347174 | Combustion promoting device for internal combustion engine Disclosed is a combustion promoting device for an internal combustion engine which derives high combustion efficiency and high power from the internal combustion engine. The combustion promoting device is provided with a combustion promotion inductor formed of a sup... | 03/25/2008 |
| 7073471 | Apparatus and method for improving engine performance A spark plug adapter allows for installation into the cylinder head of an internal combustion engine of an improved high-performance spark plug of configuration considerably different from that which the cylinder head was manufactured to accept. This is accomplished... | 07/11/2006 |
| 5245963 | Device to enhance combustion efficiency in an internal combustion engine A device for improving the thermal efficiency of an internal combustion engine by incorporating a hot gas jet ignition system and a burned gas purge system. The hot, high velocity gas jet generated by the system promotes rapid combustion and helps to insu... | 09/21/1993 |
| 5101783 | Ignition system and spark plug for multiple ignition in an internal combustion engine An ignition system in an internal combustion engine having a cylinder housing with an air or water cooled region achieves multiple ignition. The ignition system includes at least a pair of spark plugs electrically connected in series and including a first... | 04/07/1992 |
| 4972812 | Spark plug thermal control A spark plug with a heat pipe in the centerbore of the insulator thereof for controlling the operating temperature of the spark plug firing end automatically. A vaporizable medium in the heat pipe vaporizes when the load on the engine causes the temperatu... | 11/27/1990 |
| 4768477 | Pressurized ignition system The invention relates to a pressurized ignition system for an engine. The service life of the igniter for the engine and high altitude operation of the engine are substantially reduced due to arc-over between the terminal of the igniter and the metallic s... | 09/06/1988 |
| 4491101 | Multiple heat-range spark plug A spark plug having a heat pipe located between the insulating core and the shell in the skirt portion thereof to vary the heat range automatically in response to the operating conditions of the engine in which it is fitted. The heat pipe is charged with ... | 01/01/1985 |
| 4469059 | Spark plug A spark plug for igniting air-fuel mixtures, comprising: an elongated annular body with an axial bore; dividing the bore into a valve chamber and a compression chamber; and, a valve disk, slidingly disposed in the valve chamber, the valve disk being subje... | 09/04/1984 |
| 4325332 | Air injection system for internal combustion engines An air injection system, in a spark plug, whereby air is injected into the combustion cylinder comprising a compression chamber disposed in the body of the spark plug, a tube extending coaxially through the center of the plug having an air inlet means and... | 04/20/1982 |
| 4214567 | Internal combustion engines The invention relates to internal combustion engines operatable with ignition plug. For each engine cylinder, secondary air introduction means are provided which utilizes at least part of the intake passage, screw thread gaps around the plug. In this case... | 07/29/1980 |
