초록
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Improved bonding in a cathode ray tube (CRT) between its glass funnel and glass faceplate is achieved by applying a thin base layer of a priming agent to an aft portion of the faceplate adjacent to the periphery thereof as well as to the forward edge of the funnel prior to positioning of the CRT components in contact. An intermediate layer of sealing glass frit is then deposited upon either of the aforementioned layers of the priming agent and adheres to the two priming agent layers without forming a re-entrant geometry. By “priming”the two abutting glas...

Improved bonding in a cathode ray tube (CRT) between its glass funnel and glass faceplate is achieved by applying a thin base layer of a priming agent to an aft portion of the faceplate adjacent to the periphery thereof as well as to the forward edge of the funnel prior to positioning of the CRT components in contact. An intermediate layer of sealing glass frit is then deposited upon either of the aforementioned layers of the priming agent and adheres to the two priming agent layers without forming a re-entrant geometry. By “priming”the two abutting glass surfaces over an area which extends beyond the area of high loading with the priming agent prior to joining these surfaces, bond integrity is ensured and high stress concentration in the seal is avoided. The sealing glass frit may be comprised of a conventional glass cement paste and is also used as the priming agent in a preferred embodiment. The improved bonding method may also be used to bond a shadow mask support structure to the faceplate\s inner surface or other CRT components to each other. Improved CRT components and assemblies made by the disclosed method are also disclosed.

대표
청구항
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A cathode ray tube assembly, comprising: first and second components, each being composed of glass, ceramic, metal or other material amenable to being bonded together by use of a frit-based or other vitreous cement, said first and second components having first and second sealing areas, respectively; and a single frit-based or other vitreous cement disposed at an interface of said first and second sealing areas and characterized by having properties of high cohesion and low propensity for wetting said components, said assembly being characterized by said...

A cathode ray tube assembly, comprising: first and second components, each being composed of glass, ceramic, metal or other material amenable to being bonded together by use of a frit-based or other vitreous cement, said first and second components having first and second sealing areas, respectively; and a single frit-based or other vitreous cement disposed at an interface of said first and second sealing areas and characterized by having properties of high cohesion and low propensity for wetting said components, said assembly being characterized by said first and said second components having disposed on at least one of said first and second sealing areas and marginal surfaces adjacent to each a priming layer of said frit-based or other vitreous cement, wherein the terminations of said priming layer lie in regions of low stress outside the component interface, whereby the resultant component joint has a substantially reduced or non-existent tendency to form re-entrant seals in the interface where stresses may be high, thereby markedly reducing joint failures due to stress concentrations in the joint region, and whereby any stress concentrations resulting from re-entrancies formed at said terminations of said priming layer, being in regions of low stress, are relatively harmless.

이 특허에 인용된 특허 (3)

1. Hang Kenneth Warren (East Windsor NJ). Glass frit composition for sealing window glass. USP1977094049872.
2. Nofziger Neil B. (Sylvania OH). Simultaneously baking and sealing a faceplate assembly. USP1977114058387.
3. Dietch Leonard (Skokie IL) Palac Kazimir (Carpentersville IL). Tension mask colar cathode ray tube. USP1986064593225.

이 특허를 인용한 특허 피인용횟수: 11

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2. Dennis, Timothy A.. Coefficient of thermal expansion filler for vanadium-based frit materials and/or methods of making and/or using the same. USP2016069359247.
3. Dennis, Timothy A.. Coefficient of thermal expansion filler for vanadium-based frit materials and/or methods of making and/or using the same. USP2016109458052.
4. Hogan, John P.; Dennis, Timothy Alan; Petrmichl, Rudolph Hugo; Kemenah, Greg. Frits for use in vacuum insulating glass (VIG) units, and/or associated methods. USP2018069988302.
5. Dennis, Timothy A.. Method of making vacuum insulated glass (VIG) window unit. USP20181010107028.
6. Hergott, Stefan; Vogel, Michael; Knoche, Volker; Kehlenbeck, Ralf; Muhlke, Oliver. Television cathode ray tube. USP2004016680566.
7. Hogan, John P.; Dennis, Timothy Alan; Petrmichl, Rudolph Hugo; Kemenah, Greg. Vacuum insulating glass (VIG) unit with lead-free dual-frit edge seals and/or methods of making the same. USP2017039593527.
8. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP20181010087676.
9. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP2017109776910.
10. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP20190210196299.
11. Dennis, Timothy A.. Vanadium-based frit materials, binders, and/or solvents and methods of making the same. USP2016049309146.