William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8215284 | Micro-pilot injection ignition type gas engine What is disclosed is a micro-pilot injection ignition type gas engine, whereby an air fuel ratio control in starting the engine is executed with enhanced precision, by means of introducing skip-firing intermittent operations which reflect the engine operation condit... | 07/10/2012 |
| 8191530 | Device for igniting a fuel/air mixture The invention relates to a device for igniting a fuel/air mixture in the combustion chamber of an internal combustion engine. The device includes an electrode which is connected to a voltage source and extends into a precombustion chamber, and the precombustion cham... | 06/05/2012 |
| 7438043 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine is provided that basically comprises a cylinder block, a cylinder head, a piston, an auxiliary chamber partition wall and a spark plug. The auxiliary chamber partition wall is coupled to the cylinder head and extending toward the main c... | 10/21/2008 |
| 7435082 | Furnace using plasma ignition system for hydrocarbon combustion An apparatus and method for the creation, placement and control of an area of electrical ionization within an internal combustion engine combustion chamber or a fuel burner for a furnace is disclosed. A furnace includes a fuel source, a fuel burner, a plasma nozzle ... | 10/14/2008 |
| 7357116 | Direct injection internal combustion engine A direct injection engine has a fuel injection valve that directs a spray of fuel to each side of a spark plug electrode. The fuel mixes with the air to define a region of relatively richer air-fuel mixture and a region of relatively leaner air-fuel mixture. The ele... | 04/15/2008 |
| 7325528 | Method of operating a single cylinder two-stroke engine The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying combustion air as well as an ignition device for igniting a mixture in the co... | 02/05/2008 |
| 7318406 | Bowl-in-piston of a cylinder in a direct injection engine A piston in a direct injection spark ignition internal combustion engine is configured to reciprocate upward and downward within a combustion chamber along a reciprocating axis. The piston comprises an upper end which partly defines the combustion chamber; a bowl de... | 01/15/2008 |
| 7284510 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements in constructional components includes a member (32) arranged in the combustion chamber (13) for generating turbulence of an oxidant-fuel mixture filling the combustion chamber (13)... | 10/23/2007 |
| 7281515 | Method of injecting a gaseous fuel into an internal combustion engine A method of injecting gaseous fuel into an internal combustion engine comprises selecting one of at least two predetermined operating modes as a function of engine load and engine speed. The engine includes a fuel injection valve with an actuator for changing a comm... | 10/16/2007 |
| 7278387 | Multiple spark pattern internal combustion initiation device and engine using same A multiple spark pattern internal combustion initiation device includes a body defining a prechamber and a plurality of orifices from the prechamber. The device includes at least two electrical circuits which each form a spark gap with an electrical ground inside th... | 10/09/2007 |
| 7270107 | Bolted pre-combustion chamber A pre-combustion chamber for an engine is made more simply removable from the cylinder head by integrating the chamber design and not threading the assembly to the head. The assembly is provided as an integrated design using a seal that helps dissipate heat from the... | 09/18/2007 |
| 7246576 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements such as, e.g., nails, blots, etc. in constructional components includes a combustion chamber (13) for combusting therein an oxidant-fuel mixture, a turbulence generating element, arranged in the... | 07/24/2007 |
| 7246600 | Control device for internal combustion engine An ECU executes a program including the steps of: calculating a base timing of injection (INJB); determining whether an engine knocks; if the engine knocks, increasing a correction value INJK(I) applied to correct a timing of injection; and calculating the base timi... | 07/24/2007 |
| 7227380 | Synchronous first-in/first-out block memory for a field programmable gate array The present invention comprises a field programmable gate array that has a plurality of dedicated first-in/first-out memory logic components. The field programmable gate array includes a plurality of synchronous random access memory blocks that are coupled to a plur... | 06/05/2007 |
| 7216623 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine comprises a main combustion chamber part, an auxiliary combustion chamber part, a first communicating passage, a second communicating passage and an igniting component. The auxiliary combustion chamber part includes first and second aux... | 05/15/2007 |
| 7210447 | Ignition device with precombustion chamber coated with a refractory coating layer, for internal combustion engine, and igniter with precombustion chamber The invention concerns an ignition device for internal combustion engine, containing: a main chamber (1) designed for including a main combustible mixture, and fitted with a compression system of said mixture, and ... | 05/01/2007 |
| 7207312 | Internal combustion engine An internal combustion engine that includes a cylinder block formed with a cylinder bore, a cylinder head operatively connected to the cylinder block; a piston slidably disposed in the cylinder bore to define a combustion chamber; an engine front side squish area an... | 04/24/2007 |
| 7204225 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine includes a main combustion chamber and a small auxiliary combustion chamber. The main chamber is formed by a cylinder, the undersurface of a cylinder head, and the crown of a piston. A main ignition unit is disposed in the cylinder head... | 04/17/2007 |
| 7162994 | Control method and apparatus for gaseous fuelled internal combustion engine A method and apparatus create an environment within a combustion chamber of an internal combustion engine suitable for auto-ignition and combustion of a fuel that will not otherwise auto-ignite. Under high-load conditions, a pilot quantity of the fuel is injected in... | 01/16/2007 |
| 7152572 | Internal combustion engine A high thermal efficiency lean-burn spark-ignition two or four stroke engine operable unthrottled suitable for vehicles using gasoline. It uses an indirect combustion chamber and a transfer orifice aligned to produce a jet of air moving in helical swirl motion aroun... | 12/26/2006 |
| 7126374 | Multi-level routing architecture in a field programmable gate array having transmitters and receivers A routing architecture in a field programmable gate array (FPGA) having a plurality of logic clusters wherein each logic cluster has at least two sub-clusters. The logic clusters are arranged in rows and columns and each logic clusters has a plurality of receiver co... | 10/24/2006 |
| 7119573 | Field-programmable gate array low voltage differential signaling driver utilizing two complimentary output buffers A low voltage signaling differential signaling driver comprising a first output line coupled to a delay circuit, a first multiplexer and a first output buffer. The first output line is also coupled to an inverter, a second multiplexer and a second output buffer.... | 10/10/2006 |
| 7114485 | Over expanded two-stroke engines A method for combusting fuel in an engine involving decreasing a first volume of a homogeneous lean fuel/air charge to a second volume, in two stages, while increasing the pressure and temperature of that charge (a compression process having a chosen compression rat... | 10/03/2006 |
| 7111272 | Parallel programmable antifuse field programmable gate array device (FPGA) and a method for programming and testing an antifuse FPGA The present invention comprises apparatus and a method for simultaneously programming multiple antifuses in a multiple tile field programmable gate array (FPGA). The invention comprises an FPGA having a plurality of logic modules with programmable elements. The logi... | 09/19/2006 |
| 7102385 | Dedicated input/output first in/first out module for a field programmable gate array A field programmable gate array architecture having a plurality of input/output pads comprising: a plurality of logic clusters; a plurality of input/output clusters; a plurality of input/output buffers; a plurality of dedicated input/output first-in/first-out memory... | 09/05/2006 |
| 7097114 | Fuel injector adapted to remove deposits by sonic shock The present disclosure provides a self-cleaning injector nozzle or other fluid conduit that maintains deposits at a low level by sonic tuning the shock wave generated during fluid flow through that nozzle or conduit. Methods of producing an injector nozzle and a met... | 08/29/2006 |
| 7082920 | Precombustion chamber ignition device for an internal combustion engine, precombustion chamber igniter and ignition method The invention concerns an ignition device for internal combustion engine comprising: a main combustion chamber (1) fitted with a compression system; and an igniter (11) comprising a precombustion cham... | 08/01/2006 |
| 7075334 | Repeatable block producing a non-uniform routing architecture in a field programmable gate array having segmented tracks The apparatus comprises a repeatable non-uniform segmented routing architecture in a field programmable gate array having a plurality of sets of routing tracks having a first and last track position proceeding in a first direction and having at least one programmabl... | 07/11/2006 |
| 7066137 | Anti detonation device and method for internal combustion engines A flame ejector device for mounting in the spark plug aperture of an internal combustion engine whereby an inner end of the device is within the combustion chamber, the device being configured to receive a fuel-air mixture charge on the compression stroke of the pis... | 06/27/2006 |
| 7055490 | In-cylinder injection, spark ignited internal combustion engine An in-cylinder injection, spark ignited internal combustion engine including a fuel injection valve spraying fuel substantially in a sector having a relatively small thickness and spreading substantially vertically to implement homogenous combustion and stratified c... | 06/06/2006 |
| 7040270 | Internal combustion engine Internal combustion engine with at least one cylinder, in which the combustion of a homogeneous air/fuel mixture compressed in the cylinder by a piston is initiated by a time-controlled external ignition, the air/fuel ratio of the air/fuel mixture in the combustion ... | 05/09/2006 |
| 7036495 | Ignition device for internal combustion engine Provided is an ignition device for an internal combustion engine which prevents a crack from being produced in a cast insulating resin, and a noise-suppressing resistor from being damaged. An ignition device for an internal combustion engine according to the present... | 05/02/2006 |
| 7032566 | Fuel injector nozzle for an internal combustion engine A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion en... | 04/25/2006 |
| 7021275 | Igniter for internal combustion engines operating over a wide range of air fuel ratios An igniter for ignition over a wide air/fuel ratio range. Igniter includes an igniter body including an internal cavity disposed substantially within the igniter body, an internal spark gap disposed substantially within the internal cavity, an external spark gap dis... | 04/04/2006 |
| 7014086 | Ignition device for igniting a foil cartridge in an explosion-operated power tool An ignition device for igniting a foil cartridge (10) in an explosion-operated power tool includes an electrical insulator (24) arranged in the support (8), a pin-shaped electrode (25) located in the electrical insulator and having a tip ... | 03/21/2006 |
| 6997145 | Recycler for linear motor A recycling system for linear motors includes a dual piston within a cylinder housing that is moved from an upper position to a lower position by combustion pressure such that a first portion of the piston pumps compressed air from a first air chamber within a first... | 02/14/2006 |
| 6994073 | Method and apparatus for detecting ionization signal in diesel and dual mode engines with plasma discharge system An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a diesel engine is presented. The apparatus is a spark plug type of sensor or a sensor integrated with a fuel injector. The spark plug type of sensor is used t... | 02/07/2006 |
| 6980028 | Dedicated input/output first in/first out module for a field programmable gate array A field programmable gate array having a plurality of input/output pads and dedicated input/output first-in/first-out memory. The dedicated input/output first-in/first-out memory comprising a plurality of input/output clusters coupled to the input/output pads of the... | 12/27/2005 |
| 6971365 | Auto-ignition gasoline engine combustion chamber and method A combustion chamber for an internal combustion engine includes a closed end cylinder having an axis. A piston is reciprocable in the cylinder and includes a generally flat rim having an inner edge surrounding a recessed bowl into which the fuel is primarily injecte... | 12/06/2005 |
| 6945219 | Dual zone combustion chamber A combustion chamber and method of distributing fuel in a combustion chamber is disclosed. The combustion chamber includes a first section that is generally centrally positioned in the combustion chamber. A second section is offset from the first section and maintai... | 09/20/2005 |