Abstract: A cathode ray tube includes a tube having a panel having an inner phosphor screen, a funnel connected to the panel, a neck connected to the funnel, a deflection unit disposed around the funnel, an electron gun installed in the neck, and a scatter-proof unit installed on the panel and the funnel such that the panel shares the scatter-proof unit with the funnel for preventing the tube from breaking and scattering into many pieces.

Abstract: Disclosed is a color CRT capable of obtaining the safety for an explosion by setting a band force of a reinforcing band coupled to a flat panel to be optimum, wherein a ratio of an effective surface of the panel is 4:3 and a following condition 0.0426*U2?46.848*U+14095?T*W*Yp?0.0381*U2?35.517*U+9994.1 is satisfied.

Abstract: A color cathode ray tube including: a panel having a substantially flat outer surface and an inner surface having a curvature; a funnel coupled to the panel; a deflection yoke installed at an outer surface of the funnel; and a reinforcing band installed at a skirt portion of the panel, wherein the panel and the funnel satisfy the following condition, U/U??2.5, when a diagonal size of an effective surface of the panel is U, and a tube axis directional distance from an outer surface center of the panel to a boundary portion (TOR) between a body part and a yoke part of the funnel is U?, so that in the color cathode ray tube of the present invention, a lightness and slimness of a panel can be accomplished, and in order to compensate the weak structural strength caused in this case, a reinforcing band position (h) is set in the range of 10.5 mm˜20 mm to implement an optimum tensile force.

Abstract: An implosion preventing band for a cathode ray tube includes a main band formed around an outer surface of a skirt of a face panel, and including a pair of long sides provided on opposite sides of the skirt in a direction corresponding to long sides of a screen, a pair of short sides provided on opposite sides of the skirt in a direction corresponding to short sides of a screen, and corners formed between the long sides and the short sides to interconnect the same; and degaussing coil supports formed raised from the main band on long and short sides of the main band, and each having formed one or more openings that allow passage in a direction of a width of the main band, a degaussing coil(s) being supported using the openings. A plurality of the openings is formed continuously in the degaussing coil supports in a circumferential direction of the main band.

Abstract: A panel (2) of a vacuum envelope includes a substantially rectangular effective portion (8) having a substantially flat outer surface and also having a phosphor screen 1 formed on an inner surface, and a skirt portion (9) provided along a peripheral part of the effective portion and extended substantially perpendicularly to the effective portion. A funnel (3) is bonded to the skirt portion. A reinforcing band for fastening the skirt portion is attached round an outer surface of the skirt portion. When a distance in a direction of the tube axis from a bonding part between the panel and the funnel to an end of the reinforcing band on the outer surface side of the effective portion is represented by a and a distance in the direction of the tube axis from the bonding part to a central position of the outer surface of the effective portion is represented by h, the reinforcing band is arranged to satisfy a ?0.9h.

Abstract: A cathode ray tube comprises a panel of which outer surface is substantially flat and inner surface has a designated radius of curvature, a shadow mask coupled to the panel, the shadow mask having electron beam passing holes, and a reinforcing band mounted on the outer surface of the panel, wherein a diagonal size of an effective surface of the panel is in the range of 397-463 mm, and a thickness of a diagonal end of the effective surface of the panel is in the range of 20-23 mm.

Abstract: A cathode ray tube comprises a panel of which outer surface is substantially flat and inner surface has a designated radius of curvature, a shadow mask coupled to the panel, the shadow mask having electron beam passing holes, and a reinforcing band mounted on the outer surface of the panel, wherein a diagonal size of an effective surface of the panel is in the range of 571-610 mm, and a thickness at a central portion of the panel is in the range of 9.5-12.4 mm.

Abstract: Implosion proof structure in a flat cathode ray tube having a panel to which the atmospheric pressure is exerted as the flat cathode ray tube is evacuated, including implosion proof means strapped or coated on an outer circumferential surface of a funnel in the vicinity of the panel, thereby enhancing an implosion proof strength of the flat cathode ray tube.

Abstract: A cathode ray tube having an evacuated envelope including a substantially rectangular faceplate panel with a sidewall joined to a funnel and an implosion resistant band surrounding at least a portion of the sidewall and in contact therewith. The cathode ray tube is mounted in a cabinet by a plurality of mounting lugs. The mounting lugs having a base portion attached to the implosion resistant band, an adjoining portion substantially perpendicular to the base portion, and a mounting portion positioned at an angle in respect to the adjoining portion. The mounting portion having an aperture for receiving a fastner for coupling the mounting portion to the cabinet.

Abstract: The present invention provides an implosion prevention tension band 16 for use in a cathode ray tube (CRT) 10. The CRT includes a faceplate panel 18 with a substantially flat viewing faceplate 21 and a peripheral rearwardly extending sidewall 22 having an inside blend radius 23 from the viewing faceplate 21 to the sidewall 22. The tension band 16 is a single layer band surrounding the panel 18 and having a predetermined width extending rearwardly from near the faceplate 21 to at least half the distance between the rear edge of the inside blend radius 23 and the rear edge of the sidewall 22. According to another aspect of the present invention, the tension band 16 includes a plurality of tension adjusting features 40 being positioned at locations around the band 16 aft of the inside blend radius 23 in such manner that the stresses in predetermined areas of the panel 18 are reduced.

Abstract: The present invention relates to a safety band for a CRT which is capable of increasing a stability of use by enhancing an anti-explosion characteristic based on an optimum band size corresponding to each panel by engaging a safety band to a CRT in which a FCD or a panel obtained by expanding an effective screen is adapted. In a CRT(Cathode Ray Tube) including a panel having an outer flat surface and an inner surface having a certain curvature, and a safety band bent at a mold match line of a side wall portion of the panel and continuously surrounding a side wall portion of the panel in the lengthy direction, a CRT safety band according to the present invention satisfies an expression of inequality of 30.16(%)≦D/W×100≦41.27(%) where W represents the entire width, D represents a width from a front end portion in the width direction to the bent portion.

Abstract: A vacuum envelope of a cathode ray tube includes a substantially rectangular panel with a skirt portion standing on an outer peripheral edge thereof. A substantially rectangular implosion-proof band made of metal is banded on the outer surface of the skirt portion. The implosion-proof band has a pair of long sides and a pair of short sides, and a yield point of a middle portion of each of the long sides differs from that of a middle portion of each of the short sides.

Abstract: A shrinkage band for a CRT including: a panel forming a display screen; and a shrinkage band having a predetermined width combined to cover the outer circumferential surface of the side portion of the panel in a state of satisfying an inequality of 0.95≦Fa/Fb≦1.39 on the assumption that an engagement tensile force of the front side of the panel is Fa and that of the opposite side of the front side of the panel is Fb on the basis of the line extended in the horizontal direction of the panel from the center of the curved portion of the corner of the inner side of the flat panel. With the construction, the explosion characteristics of the flat panel can be highly improved along with an effectiveness that a reliability can be enhanced and a stability in use can be obtained.

Abstract: The present invention relates to an implosion prevention band for a CRT comprising an evacuated envelope having a mask and corresponding faceplate panel with sidewalls joined to a funnel. The faceplate panel and sidewalls form external corner surfaces and a peripheral inside blend radius. An implosion prevention band surrounds and closely hugs at least an edge of the external corner surfaces of the faceplate panel. The band extends along the exterior surface of the sidewall such that the width of the band is at or near the inside blend radius of the faceplate panel. The band is under tension to produce radially inwardly directed force components through the corners of the faceplate panel and primarily near the blend radius to produce a high degree of implosion protection for the CRT.

Abstract: A cathode ray tube (CRT) is housed in an enclosure by using four clamp devices, two wedges and a housing. The clamp devices are located at the corners of the CRT and are secured to the enclosure with screws. The CRT rests on the housing, which is preferably comprised of fixed posts that the CRT rests on top of. The wedges, preferably made of rubber, are placed between the CRT and the enclosure and usually located at the top of the CRT. The clamp devices, housing and wedges are used to secure the CRT in the enclosure.

Abstract: An explosion-proof tape is wound on an outer circumference of a panel portion of a cathode-ray tube and a metal band is shrink-fitted on the tape. The tape is composed of a support having at least a layer composed of propylene polymer with a propylene content of not less than 40 weight % or styrene polymer with a styrene content of not less than 50 weight % and an adhesive layer formed on one surface of the support in a manner so that a plurality of fibers with a softening point of not lower than 200° C. are buried in the adhesive layer in a lengthwise direction of the tape. An explosion-proof structure of a cathode-ray tube, wherein a metal band is shrink-fitted on an outer circumference of a panel portion of a cathode-ray tube, through a layer which is formed by winding such an explosion-proof tape as mentioned above, through its adhesive layer.

Abstract: The present invention provides an improvement in the mounting of a cathode-ray tube within a cabinet. The cathode-ray tube includes a glass envelope having a faceplate panel, a funnel and a neck. The panel includes a faceplate that is surrounded by a peripheral sidewall. A tension band encircles the outer periphery of the sidewall. The cabinet has resilient extensions from the interior thereof, that engage a portion of the tension band and support the tube within the cabinet.

Abstract: A steel sheet for a heat-shrink band, which is to be thermally expanded and fitted over the outer periphery of the panel portion of a cathode ray tube, which has at least a 20% elongation at an ambient temperature and at least a 40 kg/mm.sup.2 stress of yielding point after the heating and cooling, in particular one comprised by a dual phase cold rolled steel sheet comprising a ferrite phase and a martensite phase or a cold rolled steel sheet containing a retained austenite.

Abstract: A heat-shrink band for a cathode ray tube (CRT) has a light weight, corrects the deformation of an object, such as a panel of a CRT due to the air pressure, effectively prevents implosion of the CRT, can suppress the color deviation, and in addition is excellent in formability. The method of fabricating the heat-shrink band includes a composition of cold rolled steel sheet such that the heat-shrink band offers both a high elongation characteristic at an ambient temperature and a high stress of yielding point characteristic after the heat-shrink process. The reduction of the weight of the heat-shrink band contributes to an overall reduction of the weight of the CRT.

Abstract: 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 mounted on a sealing portion of the panel and the funnel, further comprising a flexible auxiliary panel which externally covers the panel and whose skirt is adhered to the sealing portion by means of the implosion preventing band. Thus, an external impact is not directly transmitted to the CRT, and the danger due to the implosion of the front of the panel is reduced. Also, the effectiveness of the implosion preventing band can be improved.

Abstract: The invention relates to an implosion protection band 26, 126 for a CRT having a plurality of brackets 40, 70, 140 that are disposed between the band and a sidewall 3 of the CRT 1 and detachably attached to the implosion protection band to support either a degaussing coil 9 or to facilitate mounting the CRT within a receiver.

Abstract: An implosion-resistant band on a screen panel of a cathode-ray tube body has a metallic band element having a plurality of corners, and a plurality of holders mounted respectively on the corners. Each of the holders includes a flange held against and welded to one of the corners, an attachment arm bent from one edge of the flange, and a stack retainer extending from an opposite edge of the flange and offset out of contact with the metallic band element. The retainer has a central recess opening away from the attachment arm.

Abstract: An assembly of at least two stacked anti-implosion bands, in which each anti-implosion band 14, 24 comprises suspension elements 15, 25 projecting from the anti-implosion band 14, 24 which surround the adjacent anti-implosion band with clearance. As a result, anti-implosion bands can be stacked in a simple manner for storage and/or shipment, and can be readily unstacked for individual attachment to display tubes.

Abstract: A cathode-ray tube comprises an evacuated envelope having a faceplate panel with a sidewall joined to a funnel. A shrinkfit implosion protection band surrounds at least a portion of the sidewall and is in contact therewith. A plurality of openings are formed in the implosion protection band to support a degaussing coil. The implosion protection band is improved over prior bands by providing a cavity in the band around at least three sides of each of the openings. The cavity is directed toward the sidewall of the panel so that the openings in the band are spaced therefrom.

Abstract: A tension band for fastening a cathode ray tube and a cathode ray tube fastened with the band around the skirt of the panel thereof are disclosed. The band comprises a single band unit having no seam therein and is made of synthetic resin mainly containing polyamide and glass fiber. The content ratio of the polyamide to glass fiber is preferably 3:7 to 7:3. Before the band is mounted on the cathode ray tube, the ratio of the inner circumference of the tension band as against the outer circumference of the skirt of the panel is preferably 98.79-99.90%. The tension band is easy to manufacture and place on the cathode ray tube, effectively preventing crack expansion and implosion of the cathode ray tube.

Abstract: A cathode ray tube has a metal funnel welded to a metal skirt. The skirt is reinforced to resist tensile stress. Reinforcement is accomplished by thickening the skirt, or corner portions thereof; by welding one or more reinforcing members to the inside or outside of the skirt; by bending the edges of the skirt and funnel and welding the bent parts together; by welding reinforcing plates to corners of the skirt and winding a tension band around the skirt; or by providing a rigid frame with compression members to press inward on the skirt.

Abstract: The present invention relates to a structure of positioning a cathode ray tube in a cabinet of a television receiver. In the television receiver, at least one portion of each of front window frames of the cabinet for positioning the cathode ray tube therein is formed as to be elastically deformable outwardly due to a contacting relationship between the cathode ray tube and the cabinet when assembling them. Because at least one portion of each of the front window frames is elastically deformed, a variation in a dimensional relationship between the cabinet and the cathode ray tube caused when securing the cathode ray tube to the cabinet can be compensated. Preferably, the front window frame is formed in such a manner that a thickness thereof is gradually reduced from the proximal end toward the free end.