Abstract: A CRT including an evacuated envelope with a color selection electrode assembly disposed within the envelope, and an internal magnetic shield (IMS) secured to the color selection electrode assembly, and having a replaceable getter attachment assembly comprising a mounting rail and replaceable getter portion. The mounting rail having a first portion with a coupling clip attached to the IMS and a second portion extending therefrom. The replaceable getter portion includes a first end extending from the mounting rail with a getter cup attached thereto and a second end detachably attached to the second portion of the mounting rail. The replaceable getter portion extends from the mounting rail to deposit a film of evaporated getter material therefrom within the envelope.

Abstract: The present invention provides an improvement in the mounting of a cathode-ray tube within a bezel. The cathode-ray tube includes a unitary shellbond frame having integral mounting lugs which are positioned at locations either in the corners or off of the corners. The mounting lugs are formed with tapered sections along a depth dimension to allow a tube having the shellbond frame applied to be simply lowered into a bezel having lug receiving recesses of a complimentary shape. The tapered lug and complimentary lug receiving recess provides self-alignment of the tube before it is secured to the bezel.

Abstract: The present invention relates to a getter placement and attachment assembly for securing and placement of the getter along the major axis of a CRT. The getter placement and attachment assembly includes a getter spring for removably securing the getter to an internal magnetic shield affixed to the frame of the color selection electrode or mask frame of a CRT. The internal magnetic shield has sidewalls enclosures with a plurality of apertures therethrough along the major axis of the CRT to permit optimum deposition of a getter film within the CRT.

Abstract: A CRT including an evacuated envelope with a color selection electrode assembly disposed within the envelope, and an internal magnetic shield (IMS) secured to the color selection electrode assembly, and having a replaceable getter attachment assembly comprising a mounting rail and replaceable getter portion. The mounting rail having a first portion with a coupling clip attached to the IMS and a second portion extending therefrom. The replaceable getter portion includes a first end extending from the mounting rail with a getter cup attached thereto and a second end detachably attached to the second portion of the mounting rail. The replaceable getter portion extends from the mounting rail to deposit a film of evaporated getter material therefrom within the envelope.

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: The present invention provides an improvement in the mounting of a cathode-ray tube within a bezel. The cathode-ray tube includes a unitary shellbond frame having integral mounting lugs which are positioned at locations either in the corners or off of the corners. The mounting lugs are formed with tapered sections along a depth dimension to allow a tube having the shellbond frame applied to be simply lowered into a bezel having lug receiving recesses of a complimentary shape. The tapered lug and complimentary lug receiving recess provides self-alignment of the tube before it is secured to the bezel.

Abstract: The present invention relates to a getter placement and attachment assembly for securing and placement of the getter along the major axis of a CRT. The getter placement and attachment assembly includes a getter spring for removably securing the getter to an internal magnetic shield affixed to the frame of the color selection electrode or mask frame of a CRT. The internal magnetic shield has sidewalls enclosures with a plurality of apertures therethrough along the major axis of the CRT to permit optimum deposition of a getter film within the CRT.

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: 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 interior surface thereof, and a sidewall peripherally extending from the faceplate. The end of the sidewall facing the funnel has a seal land that is sealed to the funnel. The improvement comprises the sidewall seal land having a varied width around the periphery of the panel, wherein the widest portions of the sidewall seal land are located along the panel sides and the narrowest portions of the sidewall seal land are located at the corners of the panel. The width of the sidewall seal land is from 5% to 17% less in the corners of the panel than at the centers of the sides of the panel.

Abstract: The present invention provides an improvement in a color picture tube 10 of a type that has a glass envelope 11 with a substantially rectangular faceplate panel 12, a funnel 16 and a neck 14. The glass envelope 11 has three orthogonal axes, a major axis, X--X, substantially parallel to a wider dimension of the faceplate panel 12, a minor axis, Y--Y, substantially parallel to a narrower dimension of the faceplate panel 12, and a longitudinal axis, Z--Z, extending through the center of the neck 14 and the center of the faceplate panel 12. The funnel 16 has a main body portion 30 and a yoke region 32 which is sealed to the neck 14. The weight of the funnel 16 is reduced by reducing the thickness of a sidewall 31 within the main body portion 30.

Abstract: A metal oxide vapor, such as tungsten oxide, is reacted with a ceramic material, such as aluminum oxide, at a temperature in the range of from about 1300.degree.C to about 1400.degree.C. The metal oxide vapors diffuse into the ceramic material during the reaction. The ceramic material, which now includes tungsten oxide diffused therein, is then subjected to a reducing atmosphere so as to form a cermet region in the ceramic material.