Abstract: An apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Abstract: An apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Abstract: A hand dispenser for dispensing an extrudable material includes a housing for holding the extrudable material, along with a pistol grip handle. A trigger member is mounted adjacent the pistol grip handle for movement in a path toward and away therefrom to incrementally effect a metered dispensing of the extrudable material. An adjustable stop cam is mounted in the path of movement of the trigger member. The stop cam has different cam portions engageable by the trigger member and is effective to limit movement of the trigger member to different degrees and, thereby, vary the metered amount of dispensed material. A piston rod has a series of ratcheting teeth on at least two different sides of the rod engageable by a drive pawl operatively associated with the trigger member. The ratcheting teeth in one series thereof has a spacing different from the spacing of the ratcheting teeth in the other series thereof.

Abstract: An apparatus for producing a black matrix-type phosphor screen of a cathode ray tube is disclosed, which includes a carbon coating nozzle for coating a carbon slurry on a cathode ray tube panel, a tank for containing the carbon slurry, a supplying system for supplying the carbon slurry from the carbon slurry tank into the carbon coating nozzle and a collecting system for collecting excess carbon slurry produced from the carbon coating nozzle back into the carbon slurry tank, and a carbon slurry regenerating device using an ion-exchange resin is provided. The regenerating device can be placed in at least one of the supplying system, the collecting system and the carbon slurry tank.

Abstract: A dissolution testing machine has a container for a liquid and a holder for pellets, a support for supporting the holder within the container and a drive enabling the holder to be reciprocated via its support so that solvent flushes into and out of the holder.The holder may be a mesh tube, or a solid walled tube, closed at both ends by an apertured member. A set of containers may receive the holder successively, each container containing a solvent of the same or different characteristics.

Abstract: A method for regenerating a carbon slurry used to produce a black matrix-type phosphor screen of a cathode ray tube is disclosed, in which excess carbon slurry is collected after the completion of a carbon-coating process onto a cathode ray tube panel. This collected carbon slurry is regenerated by means of an ion-exchange resin.

Abstract: A method for manufacturing a color cathode ray tube, and in particular, for conditioning the surface of a panel of a color cathode ray tube to prepare it for the application of a pattern of color phosphors while minimizing the effects of reflections from interfaces in the panel.

Abstract: Red cathode ray phosphors are coated with a vapor deposited layer of cadmium selenide in order to achieve controlled color shifts in the light output of the phosphors. Such coated phosphors are especially suited for color television and monitor applications.

Abstract: The red and blue color cathode ray tube phosphors for color television are pigmented with a coating of an aqueous-insoluble silicate-based glass matrix containing pigment particles. When incorporated into a tridot color cathode ray tube, the contrast of the tube is improved. The coated particles are formed by dispersing the particles in a slurry with a silicate, the pigment particles and an optional wetting agent, and evaporating the slurry to dryness. The dried coated particles are then heated in order to insolubilize the glass matrix, and soluble ions are then removed by washing.

Abstract: Red cathode ray phosphors are coated with a vapor deposited layer of cadmium selenide in order to achieve controlled color shifts in the light output of the phosphors. Such coated phosphors are especially suited for color television and monitor applications.

Abstract: Cathode ray phosphor compositions that are resistant to photodeposition slurries consist essentially of discrete particles of a phosphor material having a core of silver-activated zinc sulfide and a coating over a substantial amount of the external surfaces of a composition represented by the formula, Mg.sub.2 P.sub.2 O.sub.7 :Al.sub.4 (P.sub.2 O.sub.7).sub.3 . xSiO.sub.2 wherein the coating is at a sufficient level on the surfaces to provide a PO.sub.4 content of the composition of from about 0.05% to about 0.2% by weight and the SiO.sub.2 content sufficient to impart flowability. The coating composition is formed by a slurry process that enables a uniform and adherent coating to be deposited on the surfaces of the particles of silver-activated zinc sulfide.