Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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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 |
| 6703770 | Spark plug attachment structure and spark plug therefor A spark plug has a central electrode, an insulator surrounding the central electrode and a metallic shell retaining therein the insulator and provided with no thread thereon. The spark plug is clearance fitted in a plug hole of a cylinder head, without be... | 03/09/2004 |
| 6634331 | Piston with integrated spark electrode A piston is disclosed, for use in an internal combustion engine, including an insulating guide formed therein for receiving an electrode. The electrode has a body, and at least one spark lead coupled to the body for inserting into a channel formed in the ... | 10/21/2003 |
| 6202604 | Maximum compression spark plug The present invention is designed to increase performance of most internal combustion engines by raising the compression in the combustion dome without having to go through the common process of removing engine parts and machining off material at the gask... | 03/20/2001 |
| 5947071 | Tool free quick change spark plug mechanism The present invention is a tool free quick change spark plug mechanism. It includes a head insert, a spark plug and a locking housing. The head insert has a threaded base to be inserted into a spark plug port of an internal combustion engine. It is genera... | 09/07/1999 |
| 5388561 | Two-cycle internal combustion engine with reduced unburned hydrocarbons in the exhaust gas and adjustable spark gap electrodes A new two-cycle internal combustion engine configuration and control strategy in which the unburned hydrocarbon emissions are measured in the exhaust manifold during the scavenging process using a fast response air fuel sensor. The signal from the sensor ... | 02/14/1995 |
| 5358400 | Plug mount structure of a pulse combustion apparatus In order to obtain good efficiency of a pulse combustion apparatus, an ignition plug is protected to extend its life span by way of controlling the rotation of the ground electrode at the wall face of a combustion chamber wherein 100°~200° C. may be red... | 10/25/1994 |
