Abstract: Multiple nozzle arrays are formed from an assembly of at least one pair of plates having intersecting channels for receiving orifice elements and sealant. The joined plates, with inserted orifice elements in one channel and sealant in the other channel are then mounted vertically or at an appropriate angle and exposed to a temperature sufficient to cause the sealant alone to melt and to flow by capillary action to seal the orifice elements in a void-and-bubble free manner and to seal the plates to form a plate block. After cooling, the plate block is sliced into multiple nozzle wafers.

Abstract: A glass electron-multiplying microchannel plate of lead-containing glass is mounted within a supporting rim of another glass. The plate is connected to the rim with a relatively low melting temperature solder glass and the rim is slotted at a number of points about its periphery. The slots extend completely through the rim and partially into the connecting solder glass to protect against fracturing of the assembly during treatment thereof in reducing atmospheres.

Abstract: Sealed semiconductor packages and the like and a method of making them are described. The sealant compositions employed are mixtures of finely divided solder glass and an oxygen containing zinc material. The solder glasses are either lead-boron glasses or lead-zinc-boran glasses in which the zinc-lead mol ratio is below 1:2.

Abstract: Here is disclosed a liquid crystal cell comprising a juxtaposed couple of planar elements at least one of which is transparent and a liquid crystal material interposed between said planar elements and sealed around the edges thereof, said cell being thermally and chemically stable, hermetically sealed and uniformly spaced, due to the use of low-melting glass as a sealant or a sealant-spacer.

Abstract: Precision-lapped pieces of ceramic and ferrite are stacked together with pieces of ceramic-convertible glass. Firing of the stack causes the glass to devitrify and results in a comb-less track array assembly having precise track and track-to-track dimensions. The assembly is then processed to form part of a magnetic record and/or reproduce head.

Abstract: A copper oxide containing seal glass is formed by a controlled low temperature process which reduces the formation of seeds in the glass. In one embodiment the glass is prepared in two portions with the first portion containing the high melting oxides and the second portion containing the low melting oxides. The copper oxide is added to the second portion and the two portions are combined to form the seal glass at temperatures below about 800.degree.C which reduces the formation of Cu.sub.2 O crystals in the glass.

Abstract: A metal member is coated with or embedded in a high-magnesia glass-ceramic material having the approximate composition of about 60 to 80 weight percent SiO.sub.2, 12 to 20 weight percent Li.sub.2 O, 2 to 14 weight percent MgO, 1.5 to 6 weight percent P.sub.2 O.sub.5, 1 to 7 weight percent of an alkali oxide selected from the group consisting of K.sub.2 O and Na.sub.2 O and their mixtures, 0 to 2 weight percent of a transition metal oxide selected from the group consisting of Co.sub.3 O.sub.4, MnO.sub.2, Fe.sub.2 O.sub.3, V.sub.2 O.sub.5 and WO.sub.3 and their mixtures, 0 to 5 weight percent PbO, 0 to 2 weight percent Al.sub.2 O.sub.3 and 0 to 1 weight percent As.sub.2 O.sub.3.

Abstract: The glass tubulation of a gaseous discharge display device or similar device can be advantageously sealed to a glass substrate by using a preformed vitreous or devitrifiable solder glass annular member such as a washer which is placed over the tubulation and subjected to the normal solder glass sealing cycle to make the final seal.

Abstract: A low temperature glass frit seal composition and process employs a paste including particulate lead glass, an organic vehicle, and small amounts of finely divided TiO.sub.2. The TiO.sub.2 prevents attack by residual organic vehicle on the lead glass during sealing and adjusts the coefficient of thermal expansion to be compatible with the substrate glass.

Abstract: A sealing method for a laser glass which provides a high bonding strength comprising applying a powder mixture of (1) a low melting glass for sealing a glass laser and (2) a glass having a higher melting point and lower expansion coefficient than those of the low melting glass, to a laser glass and welding the powder mixture to the laser glass by heating.

Abstract: A sealing method for a laser glass which provides a high bonding strength comprising applying a powder mixture of (1) a low melting glass containing an infrared absorbing component and (2) a low expansion high melting glass containing an infrared absorbing component to a laser glass and welding the powder mixture to the laser glass by heating.

Abstract: An incandescent lamp has an envelope made of partially crystallized glass in order to diffuse the light emanating from the filament.

Abstract: In a cell comprising a pair of oppositely disposed, flat substrates, and an edge seal maintaining the substrates in spaced apart relation, a fabrication process in which the two substrates are disposed in oppositely disposed relation and in contact with a glass frit bead disposed therebetween, and spacer plates are disposed between the substrates between the bead and the edges of the substrates. The glass bead is heat softened and the two substates forced towards one another against the bead until further inward movement is prevented by contact of the substrates with the spacer plates.

Abstract: A glass composition comprises a low glass transition temperature glass and a higher glass transition temperature glass, which glasses are uniquely capable of forming together a continuous vitreous phase over their entire compositional range. During thermal cycling, the low glass transition temperature glass flows out and solubilizes the higher glass transition temperature glass to thereby synthesize in situ a new glass. The low glass transition temperature glass is composed of 14.1% SiO.sub.2, 72.8% PbO, 12.5% B.sub.2 O.sub.3, 0.2% Al.sub.2 O.sub.3, 0.1% CaO, 0.2% Na.sub.2 O, and 0.1% MgO, and the higher glass transition temperature glass is composed of 71.11% SiO.sub.2, 2.38% Al.sub.2 O.sub.3, 7.13% CaO, 14.45% Na.sub.2 O, 3.76% MgO, 0.30% of K.sub.2 O, 0.13% B.sub.2 O.sub.3, and 0.74% PbO.

Abstract: A method of manufacturing a ferrite magnetic transducer head is disclosed, in which two Mn - Zn ferrite core blocks are bonded together with glass material containing Fe.sub.2 O.sub.3 and ZnO. By proper thermal treatment, homogeneous dispersion of fine precipitates of Zn - Fe - O is formed in the bonding glass.

Abstract: A low melting, transparent glass spacer rod system is disclosed which will soften and seal the two glass substrates in the center of a gaseous discharge panel at or below the temperature used to seal the periphery but above the gas processing temperature thus relieving the stresses developed at the edge seal when the gas within the panel expands at high altitudes. High melting rods near the seal periphery provide the proper gap spacing between substrates.

Abstract: A method for manufacturing a magnetic head having at least one ferrite pole tip pair. The tips of each pair are separated by non-magnetic gap of a desired length and the method in accordance with the invention utilizes tips having generally planar surfaces. An elongated apex forming channel is formed in one of the pole tips and an elongated reservoir channel is formed in the same tip in generally parallel relationship. The reservoir channel is filled with glass and polished so that the glass therein extends in co-planar relationship to the generally planar surface of the tip having the reservoir channel therein. The generally planar surfaces are placed in opposed spaced relationship and a quantity of glass is disposed in the apex forming channel. All of the glass and both of the tips are heated until the glass from the channels flows into the space intermediate the generally planar faces of the tips.

Abstract: The novel embodiments disclosed herein also illustrate a novel method for making a recuperator structure. First and second pluralities of layers of elongated tubes are provided which are formed of a glass that is thermally crystallizable to a low expansion glass-ceramic. Each of the tubes is filled with a fluid medium that is expansible in response to the application of heat and the tubes have sealed ends to retain the expansible fluid medium entrapped therein. Each of the tubes has an essentially straight central portion and header connector portions continuing from each end of the central tube portions to the sealed end of the tube. The header connector tube portions of the first plurality of layers diverge away from the header connector tube portions of the second plurality of layers at the ends of the central tube portions when the first and second layers are placed on top of each other.

Abstract: A dielectrically isolated pressure transducer comprises a silicon diaphragm having on a surface thereof at least one piezoresistive sensor mounted in close proximity with a dielectric insulator, the diaphragm is secured about a non-active peripheral area to an annular ring housing by a glass bond fabricated from a glass material having a low melting temperature when compared to ordinary glass.