Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 6279516 | Cylinder head with two-plane water jacket A cylinder head for an engine having a two-plane water jacket in which a lower chamber at one plane through the head cools the fire deck of each cylinder and a cross-flow passage for the coolant is spaced above the lower chambers in a second plane through... | 08/28/2001 |
| 6089196 | Cylinder head having a solenoid valve control device for operating a valve of an internal combustion engine A cylinder head having a solenoid valve control device for operating a valve of an internal combustion engine includes a valve element which constitutes one of an intake valve and an exhaust valve of the engine. An armature is connected to the valve eleme... | 07/18/2000 |
| 5638779 | High-efficiency, low-pollution engine An internal combustion engine of either two-cycle or four-cycle construction including a block having at least one cylinder bore therein having sidewalls carrying a liner of a structural fiber reinforced ceramic matrix composite material disposed in seale... | 06/17/1997 |
| 5295462 | Coin insert for the firing deck in an internal combustion engine An internal combustion engine cylinder assembly includes a coin insert disposed at the top end of the cylinder acting as a firing deck. The coin insert is formed of a super alloy material and is situated within a recess defined in the cylinder head. A rad... | 03/22/1994 |
| 4805563 | Block construction of engine The block construction of an engine and more particularly the passage construction of the cooling water in an engine having the block integrally cast, the block being provided with a head portion and a cylinder portion. The cooling operation with respect ... | 02/21/1989 |
| 4774912 | Composite cylinder head of internal-combustion engine A composite cylinder head of an internal-combustion engine includes a bottom wall part to face the combustion chamber and a reinforcement part disposed on the side of the bottom wall part opposite to the combustion chamber and functioning as a back-up rei... | 10/04/1988 |
| 4508066 | Ceramic head for internal combustion engine A head assembly is disclosed for an internal combustion engine. The assembly is comprised of a cast ceramic body with a coefficient of thermal expansion less than 1.0×10-6 in/in/°F. (lithium aluminum silicate) fitting over the cylinder block ... | 04/02/1985 |
| 4344390 | Piston-cylinder assembly of an internal combustion engine A piston-cylinder assembly of an internal combustion engine is provided which includes a cylinder liner mounted within a bore formed in an engine block, and a cylindrical spacer extending axially and endwise from the liner and coacting therewith to form a... | 08/17/1982 |
| 4291650 | Cylinder head for compression-ignition internal combustion engine A cylinder head for a compression-ignition internal combustion engine comprises a lower part of cast iron, an intermediate part of aluminium, and a cap element, also of aluminium. Defined within the cast-iron lower part are precombustion chambers for the ... | 09/29/1981 |
| 4009693 | Air purging and cooling system for internal combustion engines The block of an internal combustion engine has a cylinder cooling jacket which communicates a circulating coolant to a head jacket. An overflow passage, terminating at an inlet positioned in close proximity to an upper wall of the head delays communicatio... | 03/01/1977 |
