Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6674228 | Multi-layer common lens arrangement for main focus lens of multi-beam electron gun An inline electron gun for use in a multi-beam electron gun as in a color cathode ray tube (CRT) includes a main focus lens for focusing the electron beams on the CRT's display screen for providing a video image. The main focus lens includes plural charge... | 01/06/2004 |
| 6664725 | CRT electron gun with a plurality of electrodes A CRT electron gun of the present invention has a cathode for emitting electrons toward a screen as a display face, a G2 electrode to which a voltage higher than that of the cathode is applied, a Gm electrode to which a predetermined voltage is applied, a... | 12/16/2003 |
| 6661166 | Electron gun and cathode-ray tube A cathode includes emitter tips provided on a substrate, a gate electrode with an electric field formed between the gate electrode and the emitter tips, and terminals and leads for supplying voltages to the emitter tips and the gate electrode, respectivel... | 12/09/2003 |
| 6657372 | Color cathode ray tube A color cathode ray tube having an electron gun including an electron beam generating portion arrayed in a horizontal direction for generating three electron beams, and a main lens for focusing the three electron beams from the electron beam generating po... | 12/02/2003 |
| 6653771 | Electron gun assembly and cathode ray tube apparatus The electron beam generating section in an electron gun assembly includes a cathode having an electron emitting surface. The surface of the cathode is divided into at least three regions of first, second and third regions which have different electron emi... | 11/25/2003 |
| 6650039 | Electron gun in color cathode ray tube An electron gun is provided for a color CRT having a triode for emitting, controlling, and accelerating R, G, B beams, and main lens forming electrodes for focusing the R, G, B beams emitted from the triode onto a screen. The electron gun includes first d... | 11/18/2003 |
| 6635982 | Electron gun in CRT Electron gun in a CRT including a main lens electrode having a focus electrode and an anode for focusing electron beams emitted from cathodes onto a screen, an electrostatic field controlling body fitted in each of the focus electrode and the anode each h... | 10/21/2003 |
| 6633142 | Cathode ray tube with low dynamic correction voltage A cathode ray tube is provided having an electron gun equipped with a main lens having a function of controlling a shape of an electron beam spot which is deflected to the peripheral portion of a display screen, to improve a resolution at the peripheral p... | 10/14/2003 |
| 6628061 | Electron gun for cathode ray tube An electron gun for a cathode ray tube includes a triode having cathodes, a first grid and a second grid, one or more third grids through which electron beams emitted from the cathode pass, a fourth grid opposing the third grids and forming a main focus l... | 09/30/2003 |
| 6624562 | Color cathode ray tube having an improved electron gun Each of an anode and one of the sub-electrodes of a main lens of a shadow mask color cathode ray tube includes a first member having a single opening in their facing ends, and a second member having three beam apertures, wherein is satisfied, where A is V... | 09/23/2003 |
| 6617777 | Electron gun for cathode ray tube A electron gun has a plurality of arranged tubular electrodes for passing electron beams inside the tubular electrodes, and the tubular electrodes are fixed to support rods respectively by support members. At least one of the tubular electrodes is separat... | 09/09/2003 |
| 6611103 | Electron gun assembly for cathode ray tube An electron gun assembly for a CRT includes three cathode electrodes, a control electrode, an electron-stream extractor electrode, a focusing electrode, and an anode electrode. The electron-stream extractor electrode includes first, second, and third hole... | 08/26/2003 |
| 6608435 | Cathode ray tube apparatus with electron beam forming structure In a cathode ray tube apparatus, an electron beam generating section for generating electron beams is composed of a cathode and a plurality of electrodes. Two electrodes of the plurality of electrodes are connected to each other via a resistor. A constant... | 08/19/2003 |
| 6608436 | Color display device having quadrupole convergence coils A color display device having an in-line electron gun (5) for generating three electron beams (6,7,8), and a convergence unit (14') to dynamically influence the convergence of the electron beams, preferably to decrease a distance (p) between the electron ... | 08/19/2003 |
| 6597096 | Color cathode-ray tube electron gun In an inline three-beam system color cathode-ray tube, there is provided an inline three-beam system color cathode-ray tube electron gun in which beam spot shapes of three electron beams on the left and right end portions of a fluorescent screen may be un... | 07/22/2003 |
| 6586893 | Convergence correction device for electron beams in color picture tube and process of using A device for correcting residual mis-convergence errors in a color cathode ray tube, the tube including a narrow-necked section, located at the rear thereof, in which electron guns mounted therein generate forwardly-directed red, blue and green electronic... | 07/01/2003 |
| 6580206 | Color display device with a deflection-dependent distance between outer beams A color display device having an electron gun, a display screen, a color selection electrode and a deflection unit. The distance between the electron beams in the x-direction is dynamically varied, whereby the distance in the deflection space decreases as... | 06/17/2003 |
| 6577052 | Electron gun for cathode ray tube A projection type cathode ray tube has a panel and an electron gun. The electron gun has a plurality of electrodes including a cathode, a control electrode, an accelerating electrode, a first anode, a focus electrode and a second anode, which electrodes a... | 06/10/2003 |
| 6570314 | Color display tube A vertical electrode plate having three openings formed in-line through which three electron beams pass respectively is provided only inside a focusing electrode out of the focusing electrode and a final accelerating electrode. A horizontal electrode plat... | 05/27/2003 |
| 6566800 | Method of manufacturing an electron gun A method of manufacturing an electron gun (10) for use in a color display tube (1) is described. The electron gun (10) is provided with an additional electrode (44), positioned between the anode electrode (21a) and the centering cup (23). This additional ... | 05/20/2003 |
| 6563258 | Color cathode ray tube having an improved electron gun electrode A color cathode ray tube has a phosphor screen and an electron gun. The electron gun includes an electron beam generating section for emitting three in-line electron beams toward the phosphor screen and an electron beam focusing section for focusing the e... | 05/13/2003 |
| 6545403 | Color cathode ray tube having a developed electron gun structure A color cathode ray tube having an improved electron gun, includes a quadrupole lens consisting of an independent static electrode having a static voltage applied thereto and a dynamic electrode which is disposed opposite to the independent electrode and ... | 04/08/2003 |
| 6538385 | Cathode-ray tube and flat electrode of electronic gun and production method A cathode-ray tube includes a plate having a first hole on a first surface of the plate and a second hole on a second surface of the plate. The first and second holes coupled together to allow electron beams to pass therethrough. The plate is a unitary st... | 03/25/2003 |
| 6528934 | Beam forming region for electron gun An electron gun for use in a cathode ray tube (CRT) includes a source of energetic electrons, i.e., a cathode, a beam forming region for forming the energetic electrons into a narrow beam, an arrangement for deflecting the beam over a display screen, and ... | 03/04/2003 |
| 6525459 | CRT beam landing spot size correction apparatus and method A 90 percent electron gun aperture astigmatism is used in conjunction with a four-pole electromagnet to make a CRT electron beam just focus point and minimum beam width occur closer to the same focus voltage. A single grid may have the 90 percent astigmat... | 02/25/2003 |
| 6522058 | Color cathode ray tube The present invention provides a color cathode ray tube which can improve the focusing characteristics in a wide range of a phosphor screen by setting the total length of a focus electrode divided in multi-stages within a given value and properly selectin... | 02/18/2003 |
| 6509680 | Electron gun display device provided with an electron gun The stray emission in an electron gun comprising a main lens system with one or more intermediate electrodes (42, 43, 44) between the focus electrode (41) and the anode electrode (45) is reduced if at least one of the apertures of the main lens system fol... | 01/21/2003 |
| 6495950 | Deflection yoke for color cathode-ray tube A deflection yoke capable of easily adjusting a member having a pair of magnetic pieces by moving the member to a standard state in the case of correcting misconvergence. According to the deflection yoke of the invention, a member having a pair of magneti... | 12/17/2002 |
| 6489736 | Color cathode ray tube apparatus An electron gun assembly has at least one additional electrode located along the equipotential plane of a potential distribution formed between a focusing electrode and anode electrode forming a main lens. In a no-deflection state, the additional electrod... | 12/03/2002 |
| 6483262 | Apparatus and method for ring spline convergence correction An apparatus and method for ring spline convergence correction for accurately affecting convergence at the outermost portion of a screen using ring spline interpolation are provided. Convergence correction data between seed data is output through an opera... | 11/19/2002 |
| 6483558 | Color television receiver or color monitor having a flat screen Color television apparatus and color monitors are provided with a device, in particular with an electron lens system, to vary the mutual spacing of the electron beams generated in an electron beam generating system. By reducing the mutual spacing between ... | 11/19/2002 |
| 6479927 | Electrode of electron gun and electron gun using the same An electrode of an electron gun, and an electron gun for a cathode ray tube are provided. The electron gun includes an outer-rim electrode having a large-diameter electron beam passing hole through which three electron beams pass, and an inner electrode i... | 11/12/2002 |
| 6476544 | Color cathode ray tube A color cathode ray tube includes an electron gun having cathode structures arrayed in line with a cup-shaped first grid electrode. Each of the cathode structures is fused and fixed to a cathode in an electrically insulated state by hermetic glass. A cath... | 11/05/2002 |
| 6476546 | Electron gun for color cathode ray tube having different materials for different electrodes An electron gun for a color cathode ray tube includes a cathode, control electrode and a screen electrode forming a triode, and first and second focus electrodes forming an electron lens, wherein the thermal expansion coefficient of said screen electrode ... | 11/05/2002 |
| 6469458 | Deflection yoke and a method of winding a deflection coil Auxiliary deflection coils are connected to horizontal deflection coils. Each auxiliary deflection coil is disposed in the intermediate region between the inner peripheral end adjacent to a window and the outer peripheral end. Each horizontal deflection c... | 10/22/2002 |
| 6459195 | Fe-Cr-Ni alloy electron gun electroded and Fe-Cr-Ni alloy sheet for electron gun electrodes An Fe--Cr--Ni alloy for electron gun electrodes, comprises: 15 to 20% Cr; 9 to 15% Ni; 0.12% or less C; 0.005 to 1.0% Si; 0.005 to 2.5% Mn; 0.03% or less P; 0.0010 to 0.0100% S; 2.0% or less Mo; 0.001 to 0.2% Al; 0.005% or less O; 0.1% or less N; 0.05% or... | 10/01/2002 |
| 6455995 | One-pin dynamic electron gun for a cathode ray tube A solid dielectric material is installed between the second focus electrode and third focus electrode in a one-pin dynamic electron gun assembly in order to increase capacitance between the two electrodes. The increased capacitance between the two electro... | 09/24/2002 |
| 6456017 | Electron gun for cathode ray tube An electron gun for a cathode ray tube has a cathode structure, a control electrode, a screen electrode, focusing electrodes, and a final accelerating electrode. R, G, and B electron apertures of one pair of the focusing electrodes face each other to form... | 09/24/2002 |
| 6452320 | Lens aperture structure for diminishing focal aberrations in an electron gun A main lens of an electron gun of a cathode ray tube is provided. The main lens for receives a plurality of parallel and co-planar electron beams emitted by the electron gun. The lens focuses each electron beam along a respective one of a plurality of foc... | 09/17/2002 |
| 6448703 | Electrode unit with inverted dynamic focus voltage applied thereto for forming quadrupole lens and dynamic focus electron gun using the same An electron gun for a color cathode ray tube including a triode consisting of a cathode, a control electrode and a screen electrode, and first and second focus electrodes facing each other and installed sequentially from the triode, for forming quadrupole... | 09/10/2002 |
