Class 220/2.3A - TV tube

Subclass of Class 220 - Receptacles
No. of patents: 40
Last issue date: 12/23/2003

Number	Title	Issue Date
6667570	Structure of panel in flat-type CRT Disclosed is a structure of panel in flat-type CRT (Cathode Ray Tube), which is capable of securing a stable vacuum intensity by applying sufficient tension to a face part of a panel using a straight safety band, and of effectively reducing an advance of ...	12/23/2003
6657374	Cathode ray tube A cathode ray tube including a portion whose thickness becomes where D is a diagonal axis length [mm] between rectangular corner portions of an effective screen of a panel, and t1 is a thickness [mm] at positions which occupy 75% of a length of a body portion ...	12/02/2003
6653773	Cathode ray tube having enhanced electron beam deflection efficiency A cathode ray tube with a central axis includes a panel with an inner phosphor screen and a rear portion. A funnel is connected to the rear portion of the panel. The funnel sequentially has a body with a large-sized end and a small-sized end, and a cone p...	11/25/2003
6642656	Corrosion-resistant alumina member and arc tube for high-intensity discharge lamp An arc tube is formed by polycrystalline alumina so that an average crystal grain diameter of a surface is two to ten times as large as an average crystal grain diameter of an inside including a center line of a thickness and the average crystal grain dia...	11/04/2003
6600253	Laterally spaced multiple electron gun color cathode ray tube device A cathode ray tube device in which two deflection yokes and two electron guns are used, but in which only one shadow mask is used. Image uniformity is obtained by creating a partial overlap of the two images created by the two yokes....	07/29/2003
6580209	Glass funnel for a cathode ray tube having outwardly protruding portion surrounding the yoke A glass funnel for a cathode ray tube in which the asymmetry in shape of the body portion is relaxed to reduce stress whereby an increase of the weight can be suppressed and the dimension in a direction of the depth can be shortened. A portion of the body...	06/17/2003
6552483	Cathode-ray tube having improved yoke mounting part The disclosed cathode-ray tube has a pyramidal yoke mounting part defined to extend from a joint with the neck to at least the end of a deflection yoke on the side of the screen, the yoke mounting part including: an inside profile having a form protruding...	04/22/2003
6545404	Color display tube having a non-circular neck portion In a color display tube including an envelope including a front panel and a funnel, and an electron gun provided in a neck portion of the funnel, a horizontal outer diameter of the neck portion in a region on a rear end side is greater than a vertical out...	04/08/2003
6534909	Implosion protection band for color cathode ray tube Implosion protection band for color cathode ray tube having a panel with a wedge ratio of 1.1~1.8 and a substantially flat outer surface, wherein the implosion protection band is strapped around an outer circumference of the panel to satisfy a condition o...	03/18/2003
6465948	Cathode ray tube funnel envelope materials and construction A cathode ray tube comprises a display and a funnel envelope. The funnel envelope comprises a thixotropic material. The thixotropic material thixotropic material is selected from at least one of thixotropic magnesium, thixotropic magnesium alloys, thixotr...	10/15/2002
6417613	Cathode ray tube glass panel In a glass panel for cathode ray tube of which effective screen diameter D along the diagonal axis of the glass panel is more than or equal to 500 mm, and average radius of curvature of an outer surface of a face portion 11 is more than or equal to 10,000...	07/09/2002
6404119	Color cathode ray tube having a reduced diameter part in the neck A color cathode ray tube apparatus is provided to reduce the amount of deflection power required, this apparatus having a panel part, on the inside surface of which is formed a phosphor film that emits three primary colors, a funnel part that has its expa...	06/11/2002
6380668	Cathode ray tube A cathode ray tube includes a panel having an inner phosphor screen, and a funnel having a panel sealing side, a cone portion and a neck sealing side. The panel sealing side of the funnel is sealed to the panel at a phosphor screen-side. A deflection yoke...	04/30/2002
6337535	Panel in cathode ray tube Panel in a cathode ray tube having a flat outside and a curved inside surfaces, which can provide a perfect flat image at an appropriate distance of view, wherein a condition of 2.48×106 (mm2)ࣘR×CFTࣘ4.38×106 (mm	01/08/2002
6232712	Cathode ray tube having specific thickness ratio A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short side...	05/15/2001
6011350	Color picture tube faceplate panel An improved color picture tube includes a glass envelope comprising a faceplate panel, a funnel and a neck. The faceplate panel has four sides and four corners and includes a transparent rectangular faceplate, having a cathodoluminescent screen on an inte...	01/04/2000
5757442	Cathode ray tube A cathode ray tube having an improved safety feature in preparation for the accidental implosion of a high vacuum cathode ray tube is provided. The cathode ray tube comprises a panel, a funnel sealed with the panel, and an implosion preventing band mounte...	05/26/1998
5702016	Braun tube for a projection television receiver A Braun tube for a projection television receiver in which homogeneity of luminance in the peripheral portion of a screen is obtained by setting the screen width-to-length ratio to 16:9 with the curvature radius of the long side is less than that of the s...	12/30/1997
5698939	Display device having a display window A display device having a cathode ray tube which comprises a display window. The radius of curvature of the inside of the display window along the diagonal (Rdiag) is greater than 1.6×1.767×D and smaller than 3.0×1.767×D, where D is the len...	12/16/1997
5593057	Identification marks of picture tube parts It is known to provide picture tube parts with identification marks. According to the state of the art, this identification of picture tube parts is achieved by attaching special layers or labels containing the identification data to the outside of the gl...	01/14/1997
5573317	Bracket apparatus for a cabinet A bracket for a cabinet, such as the type used for television sets or other electronic devices, wherein the cabinet includes a first flange having a predetermined flange thickness. The bracket includes a housing having top and bottom ribs and a mounting f...	11/12/1996
5355051	CRT bulb having a front panel with a higher CTE than its funnel A CRT bulb is constructed from a front panel having a higher coefficient of thermal expansion than the funnel section to which it is rigidly attached, thereby favorably stressing the bulb in the funnel-to-panel seal area resulting in a bulb with adequate ...	10/11/1994
5293096	Cathode ray tube device having insulator coating A CRT having a glass faceplate for forming an image display surface and a metal funnel connected to a peripheral part of the faceplate and forming a side wall. The glass faceplate has a phosphor screen coated on the inside surface and a metal film coverin...	03/08/1994
5270826	Implosion-resistant cathode-ray tube having implosion protection means with integral mounting loops An implosion-resistant cathode-ray tube has an evacuated envelope with a faceplate panel which includes a substantially rectangularly-shaped viewing portion that extends to a peripheral sidewall. The sidewall has corners and oppositely disposed flattened ...	12/14/1993
5258688	CRI funnel with concave diagonals A CRT funnel, especially useful for CRTs having flat face panels, has concave diagonal walls sections to reduce discontinuity stresses between the face panel and funnel in the evacuated CRT envelope, thereby increasing the CRT pressure strength....	11/02/1993
5214348	Color CRT with insulating stud pins for shadow mask support The applications of the CRT proposed by the present invention include televisions and computer terminals, and the object of the present invention is to increase electrical security of the CRT. The CRT has a metal part 8 forming a vacuum glass container in...	05/25/1993
5138461	Implosion-protected cathode-ray tube An implosion-protected cathode-ray tube has a bulb and a metallic band tightly binding the front outer peripheral portion of the bulb to suppress the occurrence of accidental implosion of the bulb during the manufacturing processes including a heating and...	08/11/1992
5127865	Peripheral bodies for tension mask CRT panel An annulus attached adjacent the edge planes of a CRT front panel provides screen area savings, and in the preferred embodiment, panel protection, strengthening, and anti-implosion properties. The annulus is preferably composed of a plurality of sections ...	07/07/1992
4994704	Cathode ray tube and an envelope therefor A color cathode ray tube includes a vacuum envelope including a panel having a single glass faceplate including an inner surface and central axis and a skirt extending from the faceplate, a rear metal plate hermetically connected to the skirt through a fi...	02/19/1991
4855640	Cathode ray tube with metal rear housing and faceplate support A cathode ray tube has an envelope comprising a flat glass faceplate covering an opening defined by a side wall of a metal rear housing and sealingly mounted on a flange provided on the side wall. To increase its flexibility and enable the flange surface ...	08/08/1989
4792722	Cathode ray tube having a flat faceplate attached by a compliant pressure bonded seal A cathode ray tube has an envelope comprising a mild steel rear housing (1) with a side wall portion (4) defining an opening over which a flat, glass, faceplate (2) is mounted. The faceplate is sealed in a vacuum tight manner using a compliant pressure bo...	12/20/1988
4720657	Implosion protection for shallow image display device having front screen with rearwardly projecting walls A shallow electronic image display device having a trough-shaped display screen of glass with a slightly convex exterior surface and a planar phosphor coated interior surface with a peripheral side wall terminating in an edge defining a common plane in se...	01/19/1988
4622084	Method of sealing a mount in a cathode-ray tube A method of sealing an electron gun mount of a cathode-ray tube to a back section thereof comprises the steps of applying a glass frit between an edge of the back section and the mount where the sealing is to be effected, heating the glass frit to a tempe...	11/11/1986
4586087	Cathode ray tube mounting system An improved mounting system is disclosed for a cathode ray tube. Base bracket members are supported between the tube faceplate and the tension band of the tube. The base bracket member includes an upstanding portion extending at an angle from a foot porti...	04/29/1986
4268712	Electron display tubes An electron display tube has its flat glass plate sealed to the flange of its metal cone, or funnel, by the use of a pressure deformable metal strip between the flange and the plate and several U-shaped clamps at the edge of the flange and plate urging th...	05/19/1981
4155102	Cathode ray tube Disclosed is a cathode ray tube with a metal anti-implosion strap which is electrically connected to the external conductive coating on the conical portion of the tube envelope. The conductive coating extends beneath on adhesive-containing layer provided ...	05/15/1979
4054913	Hybrid implosion protection system for a flangeless faceplate color cathode ray tube and method of assembly thereof This disclosure depicts a color television picture tube having a glass bulb which includes an approximately rectangular, flangeless, three-dimensionally curved faceplate having a convex front surface, a concave rear surface and an edge surface. The bulb h...	10/18/1977
4029898	Television picture tube face plate A television picture tube face plate or viewing panel including a viewing area having a reduced thickness for weight reduction of the face plate or viewing panel and resultant savings in the quantity of glass required in the manufacture of such a face pla...	06/14/1977
4021850	Color television picture tubes with improved implosion protection system This disclosure depicts a novel system for implosion protecting a color television picture tube having a faceplate with a rearwardly extending side surface and a mating funnel. The system is illustrated as comprising, in part, a high tensile strength fram...	05/03/1977
3947620	Light transmissive laminates Multiple layer light transmissive laminates and a method for making them. Such laminates are particularly adapted for use as glazing materials. The laminates retain light transmissivity after exposure to elevated temperatures. The laminates include two or...	03/30/1976

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Class 220/2.3A - TV tube