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 |
| 7637239 | Method and apparatus for enhancing the efficiency of operation of an internal combustion engine Method and apparatus useful in simultaneously enhancing the fuel consumption efficiency of an ICE, with concomitant enhancement of the power delivered by the engine, and reduction of undesirable exhaust emissions. One embodiment of the method of this invention inclu... | 12/29/2009 |
| 7594489 | High voltage extender An extender for connecting a high voltage source to a spark plug has a conductive rod with one end suitable for electrical connection to the high voltage source and a second end suitable for electrical connection to the spark plug, and a sleeve injection-molded over... | 09/29/2009 |
| 7584733 | Mounting structure of ignition plug tube To reduce the cost of an ignition plug tube by making it of a cylindrical member and to provide a simple structure having only a small number of parts for mounting the ignition plug tube. A mounting structure of an ignition plug tube that is made of a cylindrical me... | 09/08/2009 |
| 7267089 | Manually guided implement having a spark plug connector arrangement A manually guided implement comprising an engine housing that at least partially surrounds a cylinder of an internal combustion engine. The engine housing has a wall provided with an opening for a spark plug that is disposed in the cylinder. A spark plug connector a... | 09/11/2007 |
| 7243643 | Ignition device for internal combustion engine An ignition device for an internal combustion engine has a spark plug, an ignition coil, a housing and a mounting portion. The spark plug is for discharging a current to ignite an air-fuel mixture in a combustion chamber of the internal combustion engine. The igniti... | 07/17/2007 |
| 7185622 | Method and apparatus for interconnecting a coil and a spark plug The present invention is directed to a method and assembly for conducting electrical current between a coil and a spark plug of an engine. The ignition wire utilized for this conduction of electrical current generally includes a plug terminal located at a first end ... | 03/06/2007 |
| 7168406 | Ignition spark enhancing system and devices therefor An ignition spark enhancing system and devices which, in one aspect, establish the electrical path between a spark source (e.g. an ignition coil) and a spark plug, and in another aspect, between a power source (e.g. battery) and an ignition coil and, in a third aspe... | 01/30/2007 |
| 7146957 | Internal combustion engine An internal combustion engine, in particular a stationary gas engine, comprising at least one spark plug connector plug device (2) which can be fixed to the internal combustion engine, wherein the spark plug connector plug device (2) and the fixing the... | 12/12/2006 |
| 7140359 | Spark plug capable of removing remaining electric charges A spark plug capable of removing the remaining electric charges is proposed. The spark plug can be installed in a vehicle and has an insulating body, a center electrode, a conductive housing and a conductive wire. The center electrode is passed through the insulatin... | 11/28/2006 |
| 7124725 | Engine spark plug grounding structure, grounding wiring apparatus, and grounding wiring method A grounding member made of a spring steel includes a hexagonal top with a through hole, contact pieces extending from straight sides of the hexagonal top, and a grounding strip brazed to one of the contact pieces. The grounding member attaches to a spark plug with a... | 10/24/2006 |
| 7104234 | Engine ground system An engine ground system for increasing the potential of an engine. This is an engine ground system wherein intermediate portions of a ground wire one end of which is electrically connected to the negative electrode terminal of a battery are electrically connected to... | 09/12/2006 |
| 7104246 | Spark ignition modifier module and method A multi-part module including a flame cone and a connector adapted to be interposed between the normal spark plug port in an internal combustion engine block and a spark plug suitable for use with the engine in question. In the method, a quantity of fuel/air mixture... | 09/12/2006 |
| 7066163 | Ignition system for an internal combustion engine An ignition system into which signal lines and an evaluating circuit are integrated, so that the signals of a sensor integrated into a spark plug may be passed on, without additional mounting expenditure and space requirement, to a control unit of the engine control... | 06/27/2006 |
| 7053623 | Spark ignition system with diagnostic capabilities An ignition and diagnostic system (10) for an internal combustion engine includes a sparking device (12) through which a low voltage diagnostic device (54) monitors a sensing feature, for example spark gap (30) conditions, during spark in... | 05/30/2006 |
| 7013883 | Ignition coil for use in engine and engine having plastic cylinder head cover To improve an anti-heat shock performance and an electric field concentration relaxation (an insulation performance) between a secondary coil and a center core, to attain a narrow diameter structure in an individual ignition type ignition coil and further to improve... | 03/21/2006 |
| 6953017 | Plug cap mount structure for engine A plug cap guide for enhancing the reliability of mounting a plug cap to a rear portion of a spark plug. The plug cap guide is formed in a hollow cylindrical shape so as to contain a plug cap therein and to have a tip end portion insertable in a plug hole. The plug ... | 10/11/2005 |
| 6910269 | Method of converting diesel engine to natural gas engine A method of converting a diesel engine to a natural gas engine comprising inserting a spark plug into a diesel fuel injector opening in a cylinder head; installing a throttle body on the diesel engine; installing a throttle body adaptor between a throttle body and a... | 06/28/2005 |
| 6886514 | Personal watercraft and engine mounted in personal watercraft Disclosed is an engine of a personal watercraft capable of preventing water ingress into a penetrating hole for attaching an ignition plug. The engine comprises a cylinder head, a cylinder head cover provided over the cylinder head, an ignition plug attached to the ... | 05/03/2005 |
| 6880540 | Ignition coil, and internal combustion engine ignition device An object of the present invention is to provide an ignition coil which has a structure to make it possible to connect the ignition coil to a spark plug directly and in which an installation space need not be changed largely when the ignition coil is mounted in a cy... | 04/19/2005 |
| 6857420 | Ignition coil having a connecting device for contacting a spark plug An ignition coil includes a connecting device for contacting a spark plug of an internal combustion engine, the connecting device being designed to have a sleeve made of insulating material. The sleeve is able to be connected at a first end section to a high voltage... | 02/22/2005 |
| 6810869 | Ignition device for personal watercraft engine An ignition device for a personal watercraft engine, which allows mounting of a four-cycle engine on the personal watercraft and prevents occurrence of leakage of current. The engine for driving a jet propelling pump is provided in a watercraft body surrounded by a ... | 11/02/2004 |
| 6805086 | Ignition coil apparatus for engine Plural ignition coils are inserted into corresponding plug holes. Each coil-head of the ignition coil is received by a holder. The coil-head is pressed by a base plate toward the engine. The holder has hooking claws. The base plate has hooking slots to movably engag... | 10/19/2004 |
| 6796279 | System and method to prevent accidental starting of a motor during repair or maintenance A method and system to prevent the accidental reattachment of a spark plug wire or battery terminal wire during maintenance and/or repair of the motor is particularly well suited for use with small 2 and 4 stroke internal combustion engines used in lawn mowers, chai... | 09/28/2004 |
| 6675760 | Cylinder head A cylinder head of an internal combustion engine is disclosed with an upwardly open spark plug tube (1), a connection thread (6) present on the end of the spark plug tube for screwing the spark plug into the cylinder head (3) and with a sleeve (2), which ... | 01/13/2004 |
| 6668784 | Threaded insert for tapered seat spark plug bores, installation tools, and method of installation A thread insert and method to replace the damaged threads and tapered seat in a spark plug bore of an internal combustion engine allows for the continued use of the original factory specified spark plugs where the original threads in the spark plug bore h... | 12/30/2003 |
| 6655334 | Ignition apparatus for use in internal combustion engine A plug hole pipe 79 has thread grooves 81 formed on an outer circumferential surface thereof and causes a spark plug 11 to be pressed against a cylinder head 51 when the plug hole pipe is fixedly attached to the cylinder head 51 through screw engagement. ... | 12/02/2003 |
| 6508216 | Spark plug boot keeper assembly A spark plug boot keeper assembly interconnects between a spark plug boot and an internal surface of a surrounding structure which defines an elongated spark plug well. A pivoting member of the assembly is located above an annular upper shelf of the inter... | 01/21/2003 |
| 6467447 | Spark plug boot keeper assembly A sparkplug boot keeper assembly interconnects between a heat shield and an ignition wire boot of a spark plug. A spring clip is pre-assembled internally to the heat shield which then engages a bottom portion of the spark plug after the spark plug is thre... | 10/22/2002 |
| 6357408 | System and method for eliminating pocket sparking in an internal combustion engine A fuel injected, internal combustion engine that is protected from detrimental ignition due to pocket sparking. The engine includes one or more cylinders into which fuel is injected by an injector. A spark plug is used to ignite the fuel-air mixture withi... | 03/19/2002 |
| 6286490 | Ignition system for an internal combustion engine In an ignition system for an internal combustion engine, with at least one spark plug/ignition coil unit inserted into a spark plug shaft of the cylinder head of an internal combustion engine, said unit being connected by electrical leads with the vehicle... | 09/11/2001 |
| 6237578 | Ignition coil for use in internal combustion engine An ignition coil comprises a center magnetic core, a secondary coil wound on a secondary coil bobbin which is arranged at an outer side of said center magnetic core, a primary coil wound on a primary coil bobbin which is arranged at an outer side of said ... | 05/29/2001 |
| 6216679 | Ignition coil for an internal combustion engine An ignition coil for an internal combustion engine improves high-voltage sealing performance and moreover reduces housing outer diameter. The ignition coil for an internal combustion engine is made up of a transformer portion of cylindrical configuration ... | 04/17/2001 |
| 6192873 | Ignition coil having spring for connecting the same to spark plug A stick-type ignition coil to be directly connected to a spark plug via a spring. A high tension case containing a high tension terminal and a spring is integrally connected to the bottom end of a high tension generating portion of the ignition coil. The ... | 02/27/2001 |
| 6170451 | Spark plug A spark plug (1) has an outer tube member (11) that covers the outer peripheral surface of the projecting part (2a) of an insulator (2) beyond a metallic shell (3), with its front end being coupled to the metallic shell (3). A hexagonal tool engaging port... | 01/09/2001 |
| 6152095 | Quick replacement spark plug assembly A two-piece spark plug includes an electrically conductive outer housing including a cylindrical member having an outer wall and an inner wall, the inner wall defining a passage through the outer housing, and a plug member releasably coupled within the ou... | 11/28/2000 |
| 6149336 | Compliant connector A compliant connector for a connection system in an internal combustion engine includes a cylindrical connector housing and a plurality of constant strain beam springs at one end of the connector housing to act as a self-centering/self-aligning mechanism ... | 11/21/2000 |
| 6138637 | Internal combustion engine with direct fuel injection In an internal combustion engine with direct fuel injection having a cylinder, a piston and a cylinderhead defining together a combustion chamber, a fuel injector with a fuel injection nozzle is mounted in the cylinder head for delivering fuel from the fu... | 10/31/2000 |
| 6100471 | Combined distribution apparatus for low current measuring cables and high-voltage ignition cables in internal combustion engines Combined distribution duct for low current measuring cables and for high voltage ignition cables in internal combustion engines. This device combines a wiring duct having one connector per sensor for each cylinder, and one or more outlets supplying the co... | 08/08/2000 |
| 6069434 | Manufacture and method of assembly for a spark electrode A spark electrode assembly and method of assembling same is disclosed. A ceramic housing having a cylindrical passage provides clearance for a conductive metal electrode. The electrode has a tubular body with rod shaped wires inserted at each end, the wir... | 05/30/2000 |
| 5979387 | Quick replacement spark plug assembly An arrangement for easily and rapidly replacing a spark plug in a bore of a cylinder head includes a conductive cylindrical body that screws into the bore. It has a tapered internal passage that receives a replaceable plug with a tapered metal outer surfa... | 11/09/1999 |
