...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.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7331327 | Zone based knock reduction systems and methods for belt alternator starter hybrid systems A knock reduction system for an internal combustion engine is provided. The system includes an engine operating zone selection module that selects a current engine operating zone from a plurality of engine operating zones based on engine speed, air per cylinder, and... | 02/19/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7290529 | Spark advance controller and production machine of spark advance control logic in internal combustion engine A spark advance controller capable of controlling spark advance in an internal combustion engine with high accuracy without requiring a larger number of data maps and performing laborious optimization tests using an actual engine. In the spark advance controller, ma... | 11/06/2007 |
| 7263971 | Knocking control device for watercraft engine A knocking control device for a watercraft engine includes a knocking learning value renewing section for changing a knocking learning value toward a low octane number ignition timing map when the knock sensor detects a knocking condition. The device changes the kno... | 09/04/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7140351 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine allow an optimal restriction of the ignition angle. In this context, a limit value for an ignition angle is specified as a function of an operating point of the internal combustion engine. The limit v... | 11/28/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7034541 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/25/2006 |
| 7003410 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 02/21/2006 |
| 7003411 | Electronic battery tester with network communication An electronic battery tester for testing a storage battery includes test circuitry configured to provide a battery test output related to a condition of the battery. A memory stores a battery tester address of the battery tester, and communication circuitry transmit... | 02/21/2006 |
| 6998847 | Electronic battery tester with data bus for removable module An electronic battery tester is provided for testing storage batteries. Battery test circuitry is configured to couple to the storage battery and measure a condition of the battery. A removable module is configured to couple to the battery tester to add increased fu... | 02/14/2006 |
| 6970780 | System and method for transitioning between engine device schedules based on engine operating condition A method and system are provided for controlling a device in an internal combustion engine such as a spark plug, a camshaft actuator, an EGR valve actuator, etc. The method and system are designed to compensate for changes in environmental operating conditions of th... | 11/29/2005 |
| 6906523 | Method and apparatus for testing cells and batteries embedded in series/parallel systems A “three-point” measurement technique effectively removes system effects to determine impedance, admittance, resistance, or conductance of an individual cell, battery, or interconnecting conductor embedded in a series or series-parallel electrochemical battery o... | 06/14/2005 |
| 6745749 | Method for adjusting adaptive programme maps of an adaptive knock control in an internal combustion engine and a method for adjusting the knock control in said engine Proposed is a method for adjusting an adaptive characteristics map of an adaptive engine-knock control system and a method for adaptively controlling engine knock, the adaptive characteristics map being defined by at least one operating parameter, the adaptive chara... | 06/08/2004 |
| 6684851 | Method for determining a functioning parameter of an engine A process for determining an operating parameter of an internal combustion engine as a function of three control parameters (N, P, λ) of this motor, comprises: a) establishing a first map of the operating parameter as a function of two control parame... | 02/03/2004 |
| 6289881 | Conversion system with electronic controller for utilization of gaseous fuels in spark ignition engines A conversion system for converting a spark ignition engine to operate on gaseous fuel is disclosed. The conversion system includes an electronic controller which operates on several novel principles to provide superior performance/responsiveness and to re... | 09/18/2001 |
| 6145494 | Conversion system with electronic controller for utilization of gaseous fuels in spark ignition engines A conversion system for converting a spark ignition engine to operate on gaseous fuel is disclosed. The conversion system includes an electronic controller which operates on several novel principles to provide superior performance/responsiveness and to re... | 11/14/2000 |
| 5975052 | Fuel efficient valve control A method for improving efficiency and reducing emissions of an internal combustion engine. Variable displacement engine capabilities are achieved by disabling engine valves during load changes and constant load operations. Active cylinders may be operated... | 11/02/1999 |
| 5170762 | Ignition timing control system for internal combustion engines An ignition timing control system for an internal combustion engine is operable to detect knocking occurring in the engine, determine basic ignition timing based upon operating conditions of the engine, correct the basic ignition timing by a correction va... | 12/15/1992 |
| 5131369 | Ignition timing control system for internal combustion engine A system for controlling ignition timing of a vehicle internal combustion engine, in which a plurality of sets of ignition timing control characteristics are established in response to the octane numbers of different kinds of fuel which may intentionally ... | 07/21/1992 |
| 5131370 | Ignition timing control system for internal combustion engine A system for controlling ignition timing of a vehicle internal combustion engine, in which a plurality of sets of ignition timing control characteristics are established in response to the octane numbers of different kinds of fuel which may intentionally ... | 07/21/1992 |
| 4976241 | Method for determining combustion condition in spark ignition internal combustion engine and combustion condition control device A method and device for determining and controlling the condition of a spark ignition internal combustion engine involves detecting a physical value of combustion varying in association with combustion in the combustion chamber, then calculating the heat ... | 12/11/1990 |
| 4947817 | System and method for controlling fuel combustion for an internal combustion engine A system and method for controlling fuel combustion for an internal combustion engine in which one of a plurality of maps representing basic control values derived according to the engine operating condition which corresponds to fuel having a high octane ... | 08/14/1990 |
| 4934327 | Knock-suppressive spark ignition timing control system for an internal combustion engine with a variable retard limit A spark advance control system includes a high octane value spark advance schedule and a regular octane value spark advance schedule, respectively including advance limits and retard limits at different spark advance angles. Spark advance control schedule... | 06/19/1990 |
| 4913116 | Ignition timing control apparatus for an internal combustion engine There are provided a first ignition timing table for high-octane fuel and a second ignition timing table for low-octane fuel. When the second table is switched over to the first table, there is at first the difference in between basic ignition timings acc... | 04/03/1990 |
| 4903663 | Fuel combustion control apparatus for an engine In an engine fuel combustion control apparatus for determining ignition advance angles on the basis of a regular map or a highoctane map, the current advance angle on the regular map is incremented as long as knocking is absent within a predetermined engi... | 02/27/1990 |
| 4898139 | Engine control apparatus An apparatus for controlling a spark ignited internal combustion engine comprising a control unit including a memory having first and second tables containing the desired relationships between the engine condition and the spark timing for the engine opera... | 02/06/1990 |
| 4715342 | System for controlling the ignition timing of an internal combustion engine A first maximum ignition timing table storing a plurality of degrees of ignition timing each producing a maximum engine torque dependent on engine speed with low-octane gasoline without occurring the knock, and a second maximum ignition timing table stori... | 12/29/1987 |
| 4630584 | Fuel octane responsive internal combustion engine ignition system In order to simultaneously prevent engine damage due to violent knocking and maintain good fuel economy, an ignition control system firstly controls the ignition timing according to a first schedule suited for fuel having a first octane rating until the e... | 12/23/1986 |
| 4594982 | Ignition timing control apparatus for internal combustion engine An ignition timing control apparatus for an internal combustion engine capable of using as a fuel a regular (low-octane) gasoline, a premium (high-octane) gasoline, or a mixture of both type of gasolines. The engine produces knocks when the ignition timin... | 06/17/1986 |
| 4586475 | Ignition timing control apparatus for internal combustion engine An ignition timing control apparatus for an internal combustion engine capable of using as a fuel a regular (low-octane) gasoline, a premium (high-octane) gasoline, or a mixture of both type of gasolines. The engine produces knocks when the ignition timin... | 05/06/1986 |