The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7308870 | Coolant distributing means for an internal combustion engine A cooling system for an internal combustion engine in which bubbles are not transferred to the water pump, and thereby the efficiency of the water pump is maintained. The interior of a water outlet mounted on a cylinder head is divided by a partition wall to form a ... | 12/18/2007 |
| 7254947 | Vehicle cooling system A vehicle engine cooling system includes a primary cooling circuit having a primary radiator and a coolant pump. A secondary cooling circuit includes a secondary radiator, an EGR cooler, and a liquid/air charge air pre-cooler receiving engine inlet air from a turboc... | 08/14/2007 |
| 4503814 | System for preventing cavitation in water-cooled internal combustion engine The cavitation prevention system according to the present invention is provided with an air introducing passageway for introducing an air within means for storing air, such as a water tank, into a cooling water passageway at a suction portion of a water p... | 03/12/1985 |
| 4494384 | Apparatus for enhancing the performance of a vehicle air conditioning system An elongated cylinder is placed towards the front end of a vehicle such as an automobile at a lower level than the air conditioning unit evaporator drain and connected to the evaporator drain by a hose. This cylinder forms a reservoir, spray units are loc... | 01/22/1985 |
| 4494492 | Liquid-cooled power aggregate or engine having an arrangement for suppressing vibration An internal combustion engine has a sleeve in which the piston reciprocates during operation, as a result of which the sleeve is heated and tends to vibrate. The engine casing includes walls which define a space around the sleeve through which a liquid co... | 01/22/1985 |
| 4446822 | Heat insulating mounting device for carburetor A heat insulating mounting device for use with a carburetor of an internal combustion engine including a heat insulating casing formed of a heat insulating synthetic resinous material for enclosing the carburetor connected to a cylinder in a manner to iso... | 05/08/1984 |