Abstract: An improvement for inhibiting arcing within a cathode ray tube comprises a combination including a low resistive electrical coating disposed interiorly on the forward portion of the funnel, joined with a high resistive coating disposed interiorly on the rearward portion thereof. Associated therewith are getter means having discretely shaped diffusion direction means to prevent the formation of a conductive path across the high resistive coating. The improved arc suppression combination beneficially improves the dielectric breakdown protection for both the tube and the associated circuitry.

Abstract: An improvement is provided in a plural beam cathode ray tube electron gun assembly wherein positive positioning and embedment of the heater support means is achieved. One of a plurality of heater support means is oriented in each of a plurality of longitudinal rods supporting the gun assembly, in the area intervening between the embedded termini of two adjacently positioned cathode assembly support means positioned in side-by-side relationship. During gun assembly fabrication, localized movement of the softened glass of the rod, is restricted between the termini thereby effecting improved embedment of the heater support therebetween.

Abstract: An improvement in the means for supporting individually shielded cathodes is provided in a plural beam cathode ray tube electron generating assembly incorporating an in-line electron gun arrangement integrated by four spaced-apart longitudinal insulative rod-like supporting members. Each of the individual all-metal cathode assemblies is separately supported in a spatial manner apart from the related cup-like control electrode wherein a portion of the respective cathode assembly is oriented. The three cathode positioning members have discretely formed extremital portions embedded in the longitudinal supporting member to provide improved shielding and enhanced structural end-support for the in-line gun assembly.

Abstract: A configurated expanse of metal is provided for orientation within a cathode ray tube envelope, attachment thereof being made with the interior surface of the electrical connective button located substantially in the funnel portion of the tube. The metallic expanse is shaped to provide regional shielding of the area involving the traversal button, and effects increased areal contact between the coating disposed on the internal surface of the envelope and the traversal button sealed therein.

Abstract: An internal improvement is provided in a cathode ray tube wherein the electron gun assembly is positioned in close proximity to the sidewall of the encompassing neck portion of the tube envelope. The improvement is in the form of discrete shielding means incorporated in conjunction with one or more electrodes in the forward portion of a multi-beam electron gun assembly to minimize the effect of positive neck charge on the trajectories of the electron beams traversing the portions of the assembly closely related to the neck wall. Each shielding means is comprised of an element formed of substantially round wire material configurated as a U-shaped member, whereof the bottom bridge-portion of the member is substantially contiguous with the rolled rim of the associated electrode, extending outward therefrom toward but not touching the adjacent glass wall of the neck.

Abstract: Two or more self-adjusting electrical conductive snubber means are employed in an electron beam device to effect concentricity of the electron gun structure within an encompassing portion of the envelope. Each of the snubbers is a longitudinal resilient metallic member fabricated of flat material and formed for placement on an electrode of the gun structure in an orientation normal to the axis thereof. The central portion of each snubber is an attachment area having like transition portions formed at each end thereof, wherefrom similar resilient lever arms extend in an opposed longitudinal manner, each having a contact element terminally formed thereon. In usage, each of the lever arms is flexed from a relaxed to a compressed position within the envelope in a manner tangential to the positioning electrode to provide an accommodating fulcrum therewith.

Abstract: Improved means are provided for supporting a container of effusive material within a cathode ray tube wherein the container is located at the terminal end of a resilient longitudinal positioning member attached to the electron gun assembly. The supportive means includes at least one support placement means which projects forwardly from the container as a directional continuation of the positioning member. Associated with the support placement means is a rotatable member, the peripheral surface of which tracks in a direction common with the directional trend of the positioning member. The rotatable member, which may be formed of insulative material, effects facile positioning with a minimum of abrasion and positive spatial supportive placement of the container relative to the wall of the envelope.

Abstract: An improvement combination is provided in cathode ray tube construction for expediting improved tube processing and subsequent tube operation. The combination is incorporated in the funnel portion of the tube wherein a first low resistive electrical conductive coating is interiorly disposed in a substantially circumferential manner on the forward portion of the funnel nearest the screen. A high resistive electrical conductive coating is substantially circumferentially interiorly disposed on substantially the intermediate portion of the funnel being contiguous with the first coating, and making contact with a second low resistive electrical conductive coating interiorly disposed on substantially the rear portion of the funnel. This second coating extends into the forward region of the integral neck portion to facilitate electrical connection with the electron gun assembly positioned therein.

Abstract: An improved internal support is incorporated in a multipack container for accommodating a plurality of cathode ray tubes during transportation and storage. The multipack construction includes top and bottom rigid closure members formed of plastic material in conjunction with peripherally oriented and edge positioned support. The internal supportive construction of the invention is oriented within the multipack in a manner to effect vertical support between the closure members. This improved support is formed from a unitary sheet of rigid material having predefined folding-scores therein, which when folded, provide individual protective compartments for two cathode ray tubes. The unitary construction of this internal supportive along with the multiple folds of the integration, provide improved structural rigidity and enhanced protective characteristics.

Abstract: The invention provides a process improvement and conjunctive apparatus for facilitating the fabrication of the basic patterned 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 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 invention provides desirably bare sidewall-associated surfaces that are free of deleterious particulate matter.

Abstract: The invention provides radiant energy emission means utilized in an apparatus for discretely photo-exposing sensitized coatings disposed on the sidewall portion of a color cathode ray tube glass face panel. The emission means includes a source of radiant energy and an associated transparent energy transmission medium in the form of a cylindrical collector rod positioned in a manner whereof the output portion thereof extends within the panel. The cylindrical surface of the output portion within the panel is abraded to laterally emit exposure radiation radially outward toward the sidewall of the panel.

Abstract: An improved process is provided for forming at least one set of elements of a patterned CRT screen disposed in overlay relationship upon an opaquely defined windowed-webbing priorly applied to the interior surface of the tube viewing panel in accordance with an apertured mask. The invention concerns the placement of a reflective medium over the exterior surface of the panel during screen exposure. By this means the exposure radiation traversing the screen and panel is reflected back through the respective windows in the screen structure to augment the polymerization and adherence of the pattern elements.

Abstract: A process for forming a color cathode ray tube screen structure, having means for enhancing the absorption of ambient light and providing improvement in the contrast of the image display involves the deposition of three superimposed substantially continuous window-defining layers of optical filter materials. The primary, secondary and tertiary filter layers have discretely disposed window areas formed therein to expose a pattern of filter areas representing the respective filter materials. The filter windows are of a shaping similar to that of the apertures in a spatially related pattern mask member. Each window exhibits a uniform periphery free of indentations, being so defined by a uniform opaque interstitial encompassment homogeneously made up of the three distinct layers of filter materials.

Abstract: An improved multipack container is provided for accommodating a plurality of cathode ray tubes during transportation and storage. The altered construction includes basic top and bottom rigid closure members formed of flame retardant plastic material. Positioned peripherally therebetween are two substantially U-shaped edge-oriented areal support members, such being opposingly located between the superjacently related ledges of the respective closure members. Since the forward portions of the U-shaped supports do not meet, a beneficial window opening is provided on either side of the multipack structure. Internal supportive and protective structural means are predeterminately located between the closures in a manner spaced from the peripheral support members. Upon assembly of the multipack container and placement of the tubes therein, a tight covering of plastic material is applied to contiguously encompass the complete multipack to provide a unitized assemblage.

Abstract: The invention provides a temporary light attenuation coating modification of the apertures in a multi-apertured pattern member for utilization in selected steps of the procedure for fabricating a patterned color screen structure disposed on the interior surface of a cathode ray tube viewing panel. The modification is in the form of a dried coating of a water-soluble polyhydric secondary alcohol uniformly covering the apertured portion of the pattern member to effect a bridging meniscus of coating in each of the apertures. Dissolved in the coating vehicle is a homogeneous dispersion of a ultraviolet absorbing material. Each attenuating meniscus effects a differential or graded degree of uv absorption resultant of the inherent variation in thickness of the bridging formation and the amount of uv absorber dissolved therein. In addition, the absorptive coating residual on the interstitial areas defining the apertures reduces deleterious reflections of actinic radiation during screen structure fabrication.

Abstract: An improvement is provided in a color cathode ray tube mask-panel assembly to assure positive electrical contact between the apertured mask member and the sidewall portion of the viewing panel. Resilient electrical contactor means positioned in the spacing between the mask member and the panel, is maintained in a flexed attitude with the attachment portion thereof affixed to the frame and an integral flexural contact portion so oriented to effect constant pressured contact with the conductively coated sidewall of the panel.