"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7880403 | Method of detecting an arc in a glow-discharge device and apparatus for controlling a high-frequency arc discharge In a method of detecting arc discharge in a glow-discharge apparatus GD that has a high-frequency power source PS, a cutting pulse is output for time T1 to the high-frequency power source PS to stop a supply of power to the glow-discharge apparatus GD, when d... | 02/01/2011 |
| 7492105 | Method of detecting an arc in a glow-discharge device and apparatus for controlling a high-frequency arc discharge In a method of detecting arc discharge in a glow-discharge apparatus GD that has a high-frequency power source PS, a cutting pulse is output for time T1 to the high-frequency power source PS to stop a supply of power to the glow-discharge apparatus GD, when d... | 02/17/2009 |
| 7423385 | System and method for controlling voltage on discharge capacitors which control light energy from flash lamps A system and method are described for controlling voltage on discharge capacitors which control light energy from flash lamps, wherein the method includes measuring over time an operational behavior of a flash lamp for performing photothermolysis, wherein a discharg... | 09/09/2008 |
| 6568774 | Pulsed operation method for a silent discharge lamp The invention improves an operating method, already described in the prior application 198 39 329.6, for a silent discharge lamp L, in which, using the forward transformer principle, a voltage pulse effecting a forward ignition is impressed from a primary... | 05/27/2003 |
| 6541924 | Methods and systems for providing emission of incoherent radiation and uses therefor Methods and systems for providing emission of incoherent radiation and uses therefor are disclosed. A system for providing emission of high peak power (in watts) incoherent radiation, comprises an electrically impeded discharge lamp linked to an electrica... | 04/01/2003 |
| 6353294 | Operational method and electronic ballast for a discharge lamp comprising dielectrically impeded discharges A description is given of an operating method for a discharge lamp with dielectrically impeded discharges and also a corresponding ballast and illumination system. The invention is directed at withdrawing the external lamp voltage across the discharge lam... | 03/05/2002 |
| 6084360 | Device for operation of a discharge lamp A device for operation of a discharge lamp in which a dielectric barrier discharge lamp can discharge with high efficiency. A discharge lamp of the outside electrode type, a dielectric barrier discharge excimer lamp type, or the like, is operated by apply... | 07/04/2000 |
| 5955846 | Discharge lamp lighting device and a method for lighting a discharge lamp A discharge lamp lighting device according to the present invention includes: a discharge lamp including an electrode; and a lighting circuit for lighting the discharge lamp, the lighting circuit being connected to the discharge lamp, wherein the discharg... | 09/21/1999 |
| 4521718 | Beam mode lamp with voltage modifying electrode A beam mode lamp has two discharge electrodes which alternately function as anode and cathode. One or more modifying electrodes are located between the discharge electrodes. Each modifying electrode is kept equal to or negative with respect to the cathode... | 06/04/1985 |
| 4506195 | Apparatus for operating HID lamp at high frequency with high power factor and for providing standby lighting Ballast apparatus operates a HID lamp at high frequency and high power factor. Series-connected current-limiting input inductor and input capacitor connect across apparatus input and are tuned off resonance to pass predetermined lagging current. An additi... | 03/19/1985 |
| 4488091 | High intensity discharge lamp A high intensity discharge lamp operable from an AC potential source includes an arc discharge tube having a pair of oppositely disposed main electrodes therein and an associated external starting electrode, all disposed within a sealed envelope having an... | 12/11/1984 |
| 4282461 | Television raster centering aid A television raster centering aid comprises means for blanking a horizontal scan line located at the center of the vertical deflection field. In an illustrative embodiment, an operational amplifier is used to indicate the presence of the deflection field ... | 08/04/1981 |
| 3984757 | Proximity actuated power control variable as to sense and magnitude When connected to an ordinary A.C. power source, the apparatus has a power supply in which a circuit ground oscillates in voltage with respect to the earth ground, no matter with which polarity the apparatus is connected to the power source. A person's ca... | 10/05/1976 |
| 3968303 | Electrical discharge device comprising an insulator body having an electrically semi-conducting coating formed thereon An electrical discharge device and in particular a low voltage or shunt-type igniter plug is disclosed, said plug having a beryllium oxide ceramic insulator disposed between the center electrode firing tip and the ground electrode, said insulator having a... | 07/06/1976 |