Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8390981 | Flare ignition apparatus A flare ignition apparatus for igniting a flare having a power supply, a flare igniter, and a power-out cable for providing a spark. The flare igniter can be solar powered, and can have a water-tight enclosure, an actuating member, a coil, a condenser, and time-dela... | 03/05/2013 |
| 8310801 | Flame sensing voltage dependent on application A system for operating a flame sensing device to obtain readings of increased accuracy without degrading the life of the sensor. There may be levels of a flame requiring a precise measurement. One improvement of accuracy uses higher voltage on the sensor, but this d... | 11/13/2012 |
| 8300381 | Low cost high speed spark voltage and flame drive signal generator A system for generating a high DC voltage for a spark to ignite a flame in a combustion device, and a high AC voltage for a flame rod to sense a flame in the device, from a low voltage for combustion device control. The system may be an inexpensive mechanism. ... | 10/30/2012 |
| 8085521 | Flame rod drive signal generator and system A flame rod drive signal generator and system for producing a flame rod drive signal for a flame rod of a combustion system. In one illustrative embodiment, the flame rod drive signal generator may include a voltage source, an input signal having a frequency, an LC ... | 12/27/2011 |
| 7944678 | Low voltage power supply for spark igniter and flame sense A low voltage power supply circuit for intermittent pilot and/or direct spark ignition systems utilized in gas burning appliances is provided. The circuit utilizes a single transformer and a resonant circuit to supply power to both a flame sense circuit as well as t... | 05/17/2011 |
| 7920369 | Apparatus and method for nano plasma deposition An apparatus and method for initiation and control of a sustained metal plasma and nano plasma (macroparticulate) deposition methods for preparing modified metal coatings are provided. The plasma deposition process can be tightly controlled by virtue of a device tha... | 04/05/2011 |
| 7768767 | Triggered pulsed ignition system and method The ignition system is for use in a gas turbine engine. It comprises an ignition plug having a triggered spark gap therein. ... | 08/03/2010 |
| 7551420 | Retractable igniter A retractable igniter having a safety mechanism to retract the source of ignition during an inactive period, avoiding unnecessary contact with said source of ignition is described, such igniter comprises: an ignition chamber, an electrode, an electrical high voltage... | 06/23/2009 |
| 7355300 | Solid state turbine engine ignition exciter having elevated temperature operational capability A turbine engine ignition exciter circuit applies energy stored in the exciter tank capacitor to the load (igniter plug) through a thyristor type semiconductor switching device that minimizes leakage current at elevated operating temperatures. The semiconductor swit... | 04/08/2008 |
| 7350448 | Perforating apparatus, firing assembly, and method A firing assembly for activating a perforating device comprising a module having a first chamber and a second chamber. The firing assembly comprises a firing head for transferring ballistic energy to the perforating device, said firing head having a detonator and a ... | 04/01/2008 |
| 7341052 | Power switching control device for electric systems A power switching control device for electric systems such as an ignition device for internal combustion engines has a control circuit IC and a switching IC. A temperature sensor is provided in the switching IC. The control circuit IC is joined to a grounding termin... | 03/11/2008 |
| 7334523 | Fuze with electronic sterilization A fuze may include a detonator, a firing capacitor and a control circuit. The firing capacitor may be charged to a nominal operational voltage, wherein when the firing capacitor is discharged across the detonator, an external explosive charge may be detonated. The f... | 02/26/2008 |
| 7328657 | Tubular igniter bridge This invention relates to a solid-state or integrated circuit-type igniter die (10) having a bridge (18) that is formed on a non-planar surface of a substrate (12), and which therefore has a non-planar configuration. Igniter die (10), acc... | 02/12/2008 |
| 7328012 | Aircraft communications system and related method for communicating between portable wireless communications device and ground An aircraft communications system includes a wireless local area network (LAN) access point positioned within the aircraft that receives and transmits wireless communications to and from at least one portable wireless communications device. A control panel is operat... | 02/05/2008 |
| 7301750 | Electronic switching system for a detonation device, method of operation and explosive device including the same An apparatus for electronically switching a detonation device is configured to arm an energy source upon receiving a first signal and discharge the energy source to the detonation device upon receiving and validating a second signal. An explosive device comprising a... | 11/27/2007 |
| 7291983 | Ballast and igniter for a lamp having larger storage capacitor than charge pump capacitor A ballast according to the present invention operates in an ignition state, a warm-up state, and a steady state for igniting and powering a lamp. The ballast comprises an igniter that ignites the lamp during the ignition state and a switching power inverter, for exa... | 11/06/2007 |
| 7284489 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7284601 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7256511 | Turbine-generator equipment and installation method thereof Installation method of turbine-generator equipment controlling a turbine-generator is described. The method includes manufacturing a thyristor excitation equipment as a package including a circuit breaker, an excitation transformer, a power rectifier coupled with th... | 08/14/2007 |
| 7236345 | Compact monolithic capacitive discharge unit A compact monolithic capacitive discharge unit (CDU) is disclosed in which a thyristor switch and a flyback charging circuit are both sandwiched about a ceramic energy storage capacitor. The result is a compact rugged assembly which provides a low-inductance current... | 06/26/2007 |
| 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 |
| 7176636 | Circuit arrangement for operating a lamp In an electronic ballast circuit equipped with lamp presence detection means that generate a current flowing through one of the lamp electrodes the detection means are periodically switched off. The power dissipated by the lamp presence detection means is thereby re... | 02/13/2007 |
| 7170198 | Trigger arrangement for a Marx generator In trigger/firing arrangement in a Marx generator comprising n stage capacitors—n being a natural number greater than 1-, the same amount of spark gaps and 2(n−1) charging branches, with the spark gaps operating in a self-breakdown mode, the trigger-/firing arra... | 01/30/2007 |
| 7137385 | Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coli fly back energy and two-stage regulation This feature of the present invention comprises a method and apparatus that provides a regulated power supply for in-cylinder ionization detection by harvesting the excess ignition coil leakage and magnetizing energy immediately following the turn off of the ignitio... | 11/21/2006 |
| 7130180 | Partitioned exciter system A partitioned exciter system for use with an igniter in an aircraft engine. The exciter has low-energy charging circuit and a high-energy discharge circuit that are remotely located from each other and that are connected by a low-energy coaxial cable. The charging c... | 10/31/2006 |
| 7116542 | Micro-switches for downhole use A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provid... | 10/03/2006 |
| 7095601 | High energy primary spark ignition system for a gas turbine engine An exciter circuit for a gas turbine engine delivers a first single high-energy spark followed by subsequent sparks of relatively lower energy to ensures start reliability by specifically clearing ice build-up at the ignition plugs. ... | 08/22/2006 |
| 7065956 | Two piece jet engine igniter assembly A two-piece jet engine igniter assembly includes a front section and a rear section. When the igniter assembly is installed in an aircraft, either the front section or the rear section is removable for service or replacement. The front section includes a detachable ... | 06/27/2006 |
| 7005855 | Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coil fly back energy and two-stage regulation The present invention is directed to a dual charge rate power supply circuit and method for ionization detection. The circuit includes a first diode, first and second capacitors, and first and second current paths. The first diode includes an anode operably connecte... | 02/28/2006 |
| 6992877 | Electronic switching system for a detonation device An apparatus for electronically switching a detonation device is configured to arm an energy source upon receiving a first signal and discharge the energy source to the detonation device upon receiving and validating a second signal. An explosive device comprising a... | 01/31/2006 |
| 6974906 | low interferance cable A signal cable lead structure in which each lead inside the cable is formed in a generally rectangular shape such that current passing through each segment of the lead is traveling in the opposite direction from current passing through an adjacent segment of the sam... | 12/13/2005 |
| 6962202 | Casing conveyed well perforating apparatus and method Disclosed is a casing conveyed perforating apparatus and method for externally perforating a wellbore casing. The perforating apparatus is attached to the outside of the casing and is conveyed along with the casing when it is inserted into the wellbore. The perforat... | 11/08/2005 |
| 6943699 | Wireless engine monitoring system A wireless engine monitoring system (WEMS) includes an engine monitoring module that is mounted directly on an aircraft engine and records, stores, encrypts and transmits full flight engine data. The system preferably interfaces to the Full Authority Digital Engine ... | 09/13/2005 |
| 6932560 | Apparatus and method for detecting an impact on a rotor blade A gas turbine engine (10) comprises a fan rotor (26) having a plurality of fan blades (24) and an apparatus (34) for detecting an impact on the fan blades (24). The apparatus (34) comprises speed sensors (48,48B) arra... | 08/23/2005 |
| 6930441 | Spark checker-spark arc gage An arc gage (30) includes a non-electrically conductive housing (42) and a first electrically conductive pin (44) that is disposed therein. The first pin (44) has a first end (44A) disposed within the housing (42) and a seco... | 08/16/2005 |
| 6891335 | Electric gas lighting device An electric gas lighting device including an ignition circuit for generating sparks at at least one burner and connected to a supply line, supplying a supply voltage, via enabling means for alternatively enabling/disabling spark generation when connected/disconnecte... | 05/10/2005 |
| 6888713 | Device and method to mitigate hydrogen explosions in vacuum furnaces A device to mitigate hydrogen explosions in a vacuum furnace includes at least one igniter, an ignition transformer, and an electrical switch. The at least one igniter includes a set of high-voltage electrodes and is connected to the ignition transformer by high-vol... | 05/03/2005 |
| 6796792 | Electronic gas-lighting device integrated with a terminal board An electronic gas-lighting device includes a casing made of insulating material; electronic high-voltage-pulse generating circuit including at least one transformer having a secondary winding, the ends of which are connected to respective high-voltage terminals; and... | 09/28/2004 |
| 6785116 | Triggering unit controlled by a microprocessor for initiating pyrotechnical elements A triggering unit for initiating pyrotechnical elements includes a control component, a rectifier (12), an energy store (15), a voltage regulator (13), a data coupling device (11), a current limiter and a suppressor circuit (10). T... | 08/31/2004 |
| 6754063 | Electric gas lighter An electric gas lighter having a lighting circuit for generating sparks at at least one burner. The lighting circuit is connected to a power line supplying a supply voltage, and has an enabling terminal for enabling spark generation when connected to a reference-pot... | 06/22/2004 |
