...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7360512 | Low-thermal-inertia intake ports for port-injected, spark ignition engines and an associated manufacturing method The present invention provides an intake port design that provides a low thermal inertia characteristic, thereby decoupling the surface temperature of the intake port walls from that of the coolant through use of an air gap formed between the intake port and the cyl... | 04/22/2008 |
| 7163073 | Air inlet conduit for a cooler of a vehicle An air inlet conduit for a cooler of a vehicle has an air conduction scoop inserted into an opening of a vehicle body skin part on its air inlet side. The air inlet conduit is supported by way of a surrounding collar section on an exterior side of the vehicle body s... | 01/16/2007 |
| 7107943 | Engine-driven operating machine A soundproof engine-driven operating machine has a small installation area, is easy to assemble and disassemble, and has superior cooling effects. The soundproof engine-driven operating machine includes an engine, an operating machine main body that is driven by the... | 09/19/2006 |
| 6975042 | Engine-driven generator A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. An engine crankcase cover mounts the generator close to the ... | 12/13/2005 |
| 6922925 | Construction machine A construction machine of the present invention is provided, in a compartment formed by a cover, with an engine, a centrifugal fan, and a heat exchanger for exchanging heat between cooling air blown by the centrifugal fan and a specified medium, wherein the centrifu... | 08/02/2005 |
| 6705417 | Straddle type four-wheeled all-terrain vehicle with variable-speed V-belt drive A straddle type four-wheeled all-terrain vehicle includes: an engine mounted on a body frame and disposed between front wheels and rear wheels, having a crankcase; a variable-speed V-belt drive disposed on a side of the crankcase and covered with a V-belt drive cove... | 03/16/2004 |
| 4903485 | Muffler cooling device for V-type engine A muffler cooling device for a V-type engine which includes an engine cooling fan disposed at an end of a crankshaft. An air guide plate is provided at a part of a duct through which air sucked by the cooling fan flows, and the duct has at least one openi... | 02/27/1990 |
| 4834030 | Diesel internal combustion engine An diesel internal combustion engine with a liquid-cooled cylinder crank casing (1) includes a cylinder head gasket (300) which can be used with either a liquid-cooled cylinder head (200) or an air-cooled cylinder head (100).... | 05/30/1989 |
| 4690204 | Air inlet channel for a charging air intercooler An air supply channel for a charging air intercooler of an exhaust gas turbocharger of an internal combustion engine arranged in the rear of a vehicle, in which the air supply channel is arranged within the fender area of the vehicle and includes an air i... | 09/01/1987 |
| 4610326 | Air cooling arrangement for encapsulated vehicle engine A water-cooled internal combustion engine powering the vehicle is mounted in an engine compartment comprising a sound-insulating capsule. Independent of and additionally to any possible blower ventilation of the capsule at least one separate inlet opening... | 09/09/1986 |
| 4438733 | Air cooled internal combustion engine Disclosed is an air cooled internal combustion engine which comprises a cooling fan formed unitarily on a flywheel fixed to one end of an engine crank shaft, a cooling fan case covering the cooling fan and adapted to guide the flow of cooling air generate... | 03/27/1984 |
| 4273082 | Cooling system for vehicle drive A cooling system for an air cooled vehicle drive having a supercharged internal combustion engine, a transmission, a hydrodynamic brake (retarder), and a plurality of heat exchangers. The media which are to be cooled are at least partially in mutual heat ... | 06/16/1981 |
| 4226217 | Internal combustion engine with sound-insulating capsule and water radiator arranged outside the capsule An internal combustion engine with a sound-insulating enclosure and with a radiator arranged outside of the enclosure having a cooling fan and a cooling air box which has a discharge outlet outside of the enclosure; at least one cooling air line is thereb... | 10/07/1980 |
| 4204486 | Cooling system for V-shaped, forced air-cooled engine A V-shaped, forced air-cooled engine includes a radial flow cooling fan mounted in front of the crankcase, within a housing containing air passageways leading to the cylinders on the opposite sides of the engine. The air passageways are constructed so as ... | 05/27/1980 |
| 4047508 | Cooling air distribution system for reciprocating aircraft engines Disclosed is an improvement in aircraft engines of the opposed piston type comprising cylinders arranged side by side. Cooling efficiency is improved and both average and hot zone temperatures are decreased by an improved air distributor comprising channe... | 09/13/1977 |
| 3987766 | Engine enclosure and heat deflector arrangement A lawn and garden tractor includes an air cooled engine which is enclosed by structure including a hood and opposite side panels. The engine is of a type including a heat shroud for directing cooling air about cooling fins of the engine head, the shroud h... | 10/26/1976 |