Abstract: A method is provided for disposing a tripartite electrical connective-resistive system of related coating areas upon interior portions of a cathode ray tube envelope to effect arc suppression in the region of the electron generating assembly. The tripartite means is comprised of a first low resistive electrical conductive coating disposed on the forward portion of the envelope. A durable high resistive electrical conductive coating is disposed contiguous to and rearward of the first coating extending therefrom to the neck of the envelope. This resistive coating is an amorphous deposition of a homogeneous composition of an insulative vitreous frit material admixed with at least one particulate material selected from the group consisting essentially of cadmium oxide, indium oxide and copper oxide.

Abstract: Improved bracket means for supporting a cathode ray tube in a display enclosure. The improvement resides in the formation of the seating portion of the bracket which enables the implosion-inhibiting tensioned banding surrounding the tube to make substantially constant uninterrupted contact with the periphery of the tube.

Abstract: An electrical connective improvement is provided for a multiple-element electron gun assembly in an electron tube. The improvement relates to an isolated electrical conductor extending within the envelope from one of the elements of the electron gun assembly to the closure portion of the tube, whereat the conductor is shaped to project into and be encompassed by the exhaust tubulation wherein a portion of the conductor is sealed. Removal of the exterior portion of the tubulation beyond the seal provides an electrical connection extending exteriorly thereof.

Abstract: An improvement is provided in a cathode ray tube plural beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun structures in the assembly incorporates discrete electrode modifications or differentiations whereby the respective focusing lens is dimensionally changed to effect a focused beam landing at the screen that is of a size similar to those of the beams emanating from the related guns in the assembly.

Abstract: The invention provides an improvement in the means for supporting a container of effusive material located on the terminal end of an antenna-type positioning member for use in a cathode ray tube. The supporting structure is comprised of a rotatable member accommodated on axle means affixed to the positioning member at a region rearward from the forward edge of the material container. An augmentive fender-like protective component is associated with the rotatable member to shield that member from effusive material and to prevent any accumulated electric charge thereon from interfering with the scanning of the electron beam in the tube.

Abstract: Electrical connective means are provided for effecting the external connections to a multi-element electron tube having a closure portion wherein the sealed exhaust tubulation has a conductive lead extending therefrom. The connective means includes a base member having a projecting hollow-stack portion which is formed to protectively encompass the sealed tubulation. Additionally, the hollow-stack has a metallic contact recessed therein, ahead of the seal, to which the protruding seal-related lead is affixed. A central recess is formed in a mating socket member to match the projecting stack of the base member. The stack is telescopically positioned within the recess to enable a receptor contact located therein to make seated abutment with the metallic contact in the base.

Abstract: The invention relates to an improved planar electrode member for use in an in-line multi-beam cathode ray tube electron gun assembly. The improved electrode is a substantially planar one-piece member having a plurality of apertures therein. The side portions of the member have longitudinal strengthening bends formed therealong in conjunction with a plurality of rib embossments spatially formed as traversals crossing the member to join the side oriented bends thereby providing improved strengthening to the structure.

Abstract: The invention relates to an improved one-piece electrode member for use in an in-line multi-beam cathode ray tube electron gun assembly. The improved electrode has a plurality of spaced apart in-line apertures individually oriented in cup-like depressions which are collectively encompassed by a configurated continuous rim forming a cup encompassing unitized portion within the member. Formed contiguously with each side of the unit is a substantially longitudinal rib embossment having at least one complementary rib projecting therefrom in an angular manner to extend through supporting projections of the electrode. The discretely located conjunctive embossing configurations of the member provide marked strengthening to the in-line structure.

Abstract: An improvement is provided in a cathode ray tube screen exposure device wherein both the intensity and the shaping of the exposure radiation is improved by employing two conjunctive sources of radiant energy. The alpha source is positioned in a substantially superjacent manner relative to a related beta source on a substantially common optical axis. Each source is separately adjustable in a limited arcual manner, during operation of the device, to achieve optimized light output in the form of a conjunctive source of radiant energy of optimized shaping.

Abstract: An improvement is provided in a cathode ray tube plural-beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun constructions in the assembly incorporates discrete electrode structural modifications whereby the respective focusing lens is dimensionally changed to effect a focused beam landing at the screen that is of a size similar to those of the beams emanating from the related guns in the assembly.

Abstract: An improved CRT beam adjustment device is provided for exterior orientation on the neck of the tube. The device includes a plurality of rotatably adjustable annulate magnetic members sequentially positioned on a support sleeve, one end thereof being formed to have a plurality of tongue-like extensions, each having a terminal protuberance extending radially outward therefrom. Each protuberance has a surface facing the annulate member that is downward sloping toward the body of the sleeve. An adjustable ring clamp is positioned to ride on the slanted surface of the protuberance and abut the adjacent magnetic members, thereby providing by one adjustment, pressure to positionally lock the adjusted members while simultaneously affixing the device to the neck of the tube.

Abstract: A cathode ray tube plural-beam-in-line bi-potential electron gun assembly, having applied beam currents of differing levels, manifests structurally modified gun structures to effect focused beam landings at the screen that are evidenced as substantially equi-sized spots thereby providing improved resolution and brightness of the screen imagery. The structural changes embody modifications of the related focusing and accelerator electrodes of the respective guns to provide a partial telescoping arrangement for effecting the discrete placement, forming and shielding of the final focusing lenses. The three lenses so formed are in different planes in partial overlapping axial relationship.

Abstract: The invention provides conjunctive apparatus for facilitating the fabrication of the basic pattern windowed-web portion of a color cathode ray tube screen structure formed in the viewing area of the face panel. In accordance with the invention, additional photo-exposure of the panel is discretely effected by the apparatus to polymerize a defined band of coating confined to the sidewall portion of the panel. The presence of this band subsequently facilitates expeditious removal of extraneous graphite coating from the panel sidewall, from the mask positioning studs embedded therein, and from the terminal sealing edge therearound. Thus, the apparatus of the invention provides desirably bare sidewall-associated surfaces that are free of deleterious particulate matter.

Abstract: An improvement is provided in a cathode ray tube screen exposure device to achieve optimum optical alignment of related components constituting the exposure optical system. In relationship with a discretely positioned light output area, separate means are provided to achieve fine adjustable positionings of both the source of radiant energy and the associated reflective means in both x and y related directions in planes normal to the optical axis, and in the z related direction in planes parallel to a central axis. Each of the respective optical alignment adjustments is individually effected by linkages to separate exteriorly located control means. Retentive means are incorporated in the respective linkages to insure accurate maintenance of the cooperative adjustments.

Abstract: An improved single cavity packaging enclosure is provided for supporting and protecting an individual cathode ray tube. The enclosure is fabricated from a unitary sheet of foldable substantially rigid material and contains integral supportive structures, wherein discrete lip configurations effect beneficial positional retention of formed tube-supporting therein.

Abstract: Improved means is provided for aligning an electron gun assembly of a cathode ray tube within the encompassing neck portion of the envelope. The alignment improvement is a one-piece crown-like structure comprising a band-like base member having a plurality of spaced-apart snubber projections extending in a substantially normal manner therefrom. The opposing ends of the base member are joined by adjustable jointure means to facilitate contiguous placement and bonding of the alignment means upon the terminal electrode of the gun assembly.

Abstract: A connective improvement disposed on the exterior of a cathode ray tube includes the metallic fracture-protective member peripherally surrounding the panel as an integral part of the circuitry connecting the exterior coating on the funnel portion of the tube envelope with appropriate grounding circuitry in the chassis. A discrete deposition of connective conductive material is applied to the exterior of the funnel and panel areas, whereof the funnel disposed section has the exterior funnel coating overlaid thereon. The opposed panel-disposed section makes positive connection with the peripheral protective member, which in turn, has a connective element associated therewith to complete the grounding circuitry without disturbing the intervening conductive material or the funnel coating associated therewith.

Abstract: An improvement for effecting rapid warm-up of the thermionic cathode means in a color CRT display device utilizing a degaussing circuit including a temperature responsive resistive element in series with the primary winding of an inductive means. A direct operational relationship is established between the degaussing and cathode heater circuits by having the secondary winding of the inductor series coupled therein. Upon simultaneous activation of both circuits, through a common switching means, a transitory surge of current is supplied by the degaussing circuit to the heater circuit, via the common inductor, to effect an accelerated temperature response in the heater.

Abstract: A device is provided for transporting an effusive material structure through the open neck of a cathode ray tube envelope to effect positioning of the effusive structure on the frame of a screen-related apertured member oriented within the forward region of the envelope. The device includes a hand grip, a longitudinal body member having a curved portion and a head member terminally positioned thereon. The head member incorporates guide means and resilient retention means to effect a temporary sliding relationship to accommodate the clip portion of the effusive structure during the positioning procedure.

Abstract: Means for deterring the build-up of a deleterious negative charge on the neck portion of a cathode ray tube is provided for utilization in especially those tubes wherein the electron gun structure is particularly close to the glass surface of the encompassing neck. The charge inhibiting means is formed of a circumferential band of insulative oxide material having a roughened topography to provide a discontinuous surface condition to break-up the deposition of metallic sublimation resultant from high temperature tube processing and conditioning. The band is oriented substantially in the rearward section of the neck on the portion thereof substantially encompassing the cathode region of the gun structure.