Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7821270 | Electrode contact pellet and associated photoionisation detector assembly A demountable pellet is disclosed for use as an electrode contact assembly. The pellet comprises a base 1 upon which is mounted a plurality of electrodes 18, 19, 20 arranged in respective spaced parallel planes and having respective contacts 23, 24,... | 10/26/2010 |
| 7429863 | Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments A method and apparatus for operating a multi-hot-cathode ionization gauge is provided to increase the operational lifetime of the ionization gauge in gaseous process environments. In example embodiments, the life of a spare cathode is extended by heating the spare c... | 09/30/2008 |
| 7368917 | Electronic circuit for ion sensor with body effect reduction An electronic circuit for ion sensor with the body effect reduction includes a bridge-type floating source circuit provided with an input terminal, an output terminal reflecting the change in the potential dependent on ion concentration, and an ion-sensitive field e... | 05/06/2008 |
| 7368707 | Radiation detector including means for indicating satisfactory operation A radiation detector, comprising a sensitive volume filled with a counter gas; an anode and a cathode each in communication with the counter gas; a voltage supply for maintaining a potential difference between the anode and the cathode, said potential difference bei... | 05/06/2008 |
| 7339778 | Corona discharge static neutralizing apparatus A corona discharge static neutralizing device includes a wire electrode retained in tension between spaced ends of a resilient support member that is positioned within a flowing air stream. Another electrode aligned with and spaced from the wire electrode promotes a... | 03/04/2008 |
| 7337034 | Method and apparatus for determining a root cause of a statistical process control failure The present invention provides a method and apparatus for determining a root cause of a fault. The method includes detecting at least one fault associated with at least one first wafer processed according to a first processing context and processing at least one sec... | 02/26/2008 |
| 7337076 | Inspection system and apparatus A method and system for identifying a defect or contamination on a surface of a sample. The system operates by detecting changes in work function across a surface via both vCPD and nvCPD. It utilizes a non-vibrating contact potential difference (nvCPD) sensor for im... | 02/26/2008 |
| 7309992 | Gas analysis method and ionisation detector for carrying out said method Chemical analysis of impurities in buffer gas is provided at various pressures up to atmospheric. Identification of the impurities is carried out by analyzing energy of electrons releases via ionization of the impurity atoms or molecules in their collisions either w... | 12/18/2007 |
| 7251571 | Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal In a first embodiment, the present invention is a method of detecting an open secondary winding, including the steps of enabling an integrator, resetting the integrator, detecting an ionization current, integrating the ionization current over a spark window, compari... | 07/31/2007 |
| 7197913 | Low cost circuit for IC engine diagnostics using ionization current signal This feature of the present invention comprises a method, apparatus, and system for detecting and conditioning an ionization current signal. In one embodiment of the invention, an analog signal conditioning circuit detects and processes the ionization signal. The an... | 04/03/2007 |
| 7183772 | Ion detector A charge detector includes an outer housing having an entrance aperture. Within the housing is disposed a charge capture element that is electrically isolated from the outer housing. The charge capture element includes a plurality of apertures, such as provided by a... | 02/27/2007 |
| 7129722 | Methods of improving reliability of an electro-optical module The quality and reliability of electro-optical modules can be improved, for instance, through improved testing and burn-in of an electro-optical sub-assembly. Reliability can also be enhanced through better methods of constructing an electro-optical module. By arran... | 10/31/2006 |
| 7110238 | Systems and methods for using non-contact voltage sensors and corona discharge guns A method and a system for calibrating the work function of a non-contact voltage sensor are provided. The method includes preparing a reference sample to have a stable work function, measuring a voltage of the sample using a non-contact voltage sensor, and determini... | 09/19/2006 |
| 7049853 | Resetable control circuit devices for sense amplifiers A device to control a sense amplifier comprise a resetable control circuit containing a first input, a second input, a third input, and an output; the first input coupled to the output or to a ground; the second input coupled to receive a start signal; the third inp... | 05/23/2006 |
| 7046012 | Ionization devices An ionization detector includes a third (fence) electrode (55) between the counter electrode (53) and the sensing electrode (54). The fence electrode (53) is maintained at or near the potential of the sensing electrode (54) and tra... | 05/16/2006 |
| 7030619 | Ionization gauge An ionization gauge for isolating an electron source from gas molecules includes the electron source for generating electrons, a collector electrode for collecting ions formed by the impact between the electrons and gas molecules, and an electron window which isolat... | 04/18/2006 |
| 7005880 | Method of testing electronic wafers having lead-free solder contacts A cantilever probe method of parametrically testing wafers extends the probe tip cleaning interval, maintains relatively low contact resistance, and reduces contact resistance variability. In one embodiment of our invention, a method of testing electronic circuits f... | 02/28/2006 |
| 6954074 | Circuit for measuring ionization current in a combustion chamber of an internal combustion engine A circuit for measuring ionization current in a combustion chamber of an internal combustion engine including an ignition coil, having a primary winding and a secondary winding, and an ignition plug. The ignition plug ignites an air/fuel mixture in the combustion ch... | 10/11/2005 |
| 6919689 | Method for toolmatching and troubleshooting a plasma processing system A plasma processing system having a grounded chamber and an RF power feed connected to a bottom electrode is tested. A first capacitance between the bottom electrode and the grounded chamber is measured at atmosphere. Consumable hardware parts are installed in the c... | 07/19/2005 |
| 6909291 | Systems and methods for using non-contact voltage sensors and corona discharge guns A method and a system for calibrating the work function of a non-contact voltage sensor are provided. The method includes preparing a reference sample to have a stable work function, measuring a voltage of the sample using a non-contact voltage sensor, and determini... | 06/21/2005 |
| 6853195 | Device and process for measurement of the concentration of ions in a measurement liquid A symmetrically wired device and a process for measurement of the concentration of ions, especially hydrogen (H+) ions, in a measurement liquid. The device comprises a pH-sensitive measurement electrode, a reference electrode and a comparison electrode, all located ... | 02/08/2005 |
| 6831465 | Electrical measurement means An electrical measurement device is described, with a measurement input, an integrated sensor, a measurement and evaluation circuit, and a measured value display, and several measured value outputs. The electrical measurement device enables not only one measured val... | 12/14/2004 |
| 6826489 | Fault classification in a plasma process chamber A method of fault classification in a plasma process chamber powered by an RF source includes initially running a plurality of different baseline plasma processes on the chamber. For each baseline process, the magnitudes of a plurality of Fourier components of deliv... | 11/30/2004 |
| 6781383 | Method for fault detection in a plasma process A method of fault detection is described for use in a plasma process chamber powered by an RF source and subject to periodic standard preventive maintenance. Prior to a production run, the changes in magnitude of a plurality of Fourier components of the RF source re... | 08/24/2004 |
| 6771075 | Air ion measuring device An air ion measuring device is provided which holds the air passage rate in an ion detector as constant as possible to provide for improved air ion measurement reliability, permits a size and thickness reduction and also a reduction of parts and cost of the ion dete... | 08/03/2004 |
| 6768311 | Ion measuring device The ion measuring device comprises an ion detector including a charge collector electrode disposed in an air passage with an air passing member provided therein and capable of collecting ions in air in the air passage and repelling electrodes disposed to face the ch... | 07/27/2004 |
| 6756785 | Pressure controlled degas system for hot cathode ionization pressure gauges A method operating a hot cathode ionization pressure gauge during electron bombardment and resistance degas operations by controlling the degas power levels as a function of the gauge pressure. In one embodiment, the degas power level is increased and decreased in s... | 06/29/2004 |
| 6734677 | Device and method for detecting engine combustion condition A combustion condition detecting device detects combustion ions between opposing electrodes in a combustion chamber by ion current flowing between the electrodes in response to a.c. current voltage applied between the electrodes. A low pass filter for eliminating cu... | 05/11/2004 |
| 6717413 | Contact potential difference ionization detector A nondestructive testing method of condensed matter surfaces, and a sensing device for the measurement of the work function of the surface of a conducting or semiconducting sample. The sensing device includes an ionization chamber, a probe having a first surface, an... | 04/06/2004 |
| 6583627 | Process and apparatus for testing multi-layer composites and containers produced therefrom The invention relates to a process and an apparatus for detecting gas-permeable damaged points in an electrically non-conductive layer which can exist as a single layer or as a multi-layer composite with at least one conductive layer, which process can be... | 06/24/2003 |
| 6570389 | Prevention of arcing in power supplies A power supply to be tested is placed in a vacuum chamber; the power supply is turned on and gas pressure in the chamber is reduced. As the gas pressure is reduced below 1 atmosphere, the breakdown voltage decreases; when the breakdown voltage decreases t... | 05/27/2003 |
| 6549013 | Ionic current measuring glow plug and process and circuit for its activation Ionic current measurement glow plug with electrical terminal for the glow current of a heating element which is located on the combustion space side in a glow tube, the glow tube being located in a plug housing, insulated relative to the latter, and the p... | 04/15/2003 |
| 6545480 | Method for carrying out the electrical breakdown of a gaseous dielectric in a highly non-uniform field The invention pertains to testing technique and designed to be used in the research n the dielectric rigidity of high-voltage equipment gaseous isolation. The technical result of the invention is the achievement of gas dielectric breakdown with relatively... | 04/08/2003 |
| 6531877 | Miniaturized glow discharge electron capture detector An ionization detector includes a unique combination of elements including a non-radioactive glow discharge source, a gas flow area designed to promote mixing of sample gas with a reagent gas, a GC column interface which directs air leaks away from the sa... | 03/11/2003 |
| 6515482 | Ionization vacuum gauge An ionization vacuum gauge which can stably perform measurements of pressure in the intermediate vacuum to high vacuum regions, that is performed by an ionization-type first measurement element, as well as in the measurement region intrinsic to a second m... | 02/04/2003 |
| 6462553 | Device and method for converting a charge-flow into a frequency signal A device and a method for converting flow of charge into a frequency signal is proposed. The device comprises: two parallel circuit branches (Z; Z') which are arranged to receive flow of charge alternately and each of which has a series arrangement of a s... | 10/08/2002 |
| 6452401 | Charged particle analysis A detection device for analyzing charged particles. The charged particle analyzer comprises a source of charged particles and a charged particle detector spaced from the source and immersed within the source in an ionizable gas. The detector comprises at ... | 09/17/2002 |
| 6452400 | Method of measuring negative ion density of plasma and plasma processing method and apparatus for carrying out the same A probe (6) is brought into contact with a plasma produced by ionizing Ar gas, a saturation current (Ies2) at which current flowing through the probe is saturated when the potential of the probe is changed in a potential region where the potent... | 09/17/2002 |
| 6441620 | Method for fault identification in a plasma process A method of fault identification in a plasma process powered by an RF source comprises initially determining, in respect of a given baseline plasma process, the changes in magnitude of a plurality of Fourier components of the RF source resulting from chan... | 08/27/2002 |
| 6433553 | Method and apparatus for eliminating displacement current from current measurements in a plasma processing system In a plasma processing system, displacement current is removed from a current measurement by providing a secondary capacitor connected in parallel with a primary capacitor defined by an anode and a cathode spaced from one another within the plasma doping ... | 08/13/2002 |
