Abstract: A television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture opening size and shape varying in accordance with the position of the opening in the aperture mask. Two techniques known as the capital I and capital H resist layout techniques are taught to illustrate the formation of the aperture mask.

Abstract: A compliant electrical connector has a pin with opposed convex surfaces to grip the boundary of a hole, the pin having at least one groove sunk in the side thereof so that the pin forms a flexure that flexes to reduce the cross sectional area of the groove as the pin is inserted into the hole.

Abstract: An electrical bus strip to receive a terminal post comprises(a) an elongated metallic bus strip;(b) a contact integral with and spaced from said strip, said contact protruding toward a plane defined by said strip, and(c) two pairs of arms having first ends integral with said strip and second ends integral with said contact to support the contact for resiliently yieldable movement normal to said planes in response to insertion of a terminal post into position between the arms of each pair and between the contact and said strip.Typically the bus strip defines an H-shaped opening generally in registration with said contact and arms which were stamped from said strip.

Abstract: A television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture mask located in the television tube with the cone side of the aperture mask facing the electron guns.

Abstract: A method of making a line of sight opening in an article wherein the line of sight opening in the article is partially defined by material on one surface of the article and partially defined by material on the opposite surface of the article.

Abstract: A method of marking plastic lenses to selectively identify a lens by impregnating a fluorescent material into the surface of the lens so that when the lens is exposed to ultraviolet light it fluoresces.

Abstract: A process for forming openings of varying sizes in an aperture mask by determining an over-etch factor wherein the over-etch factor is determined by the time of etching through an etchant resist pattern located on opposite sides of an aperture mask material to produce an opening of predetermined size and shape followed by individually sizing the opening in the etchant resist so that etching from both sides of the aperture mask material produces etched openings of various sizes throughout the aperture with the sizing of the opening in the etchant resist characterized by having substantially constant over-etch factor even though the final openings in the aperture masks are of various sizes.

Abstract: The process of the preparation of production quantities of lens devices fabricated from synthetic resinous substances, normally referred to as "plastic lenses." The process utilizes a molding formulation which enables reusable mold cavities to be utilized, the formulation providing a proper balance between a number of processing parameters or variables, one of the primary parameters being the maintenance of a proper adherence or release capability between the surface of the lens being fabricated and the surface of the mold cavity. Specifically, it has been found that certain silanes when incorporated in the molding formulation controls the parameters so as to provide for controllable release of the lens product from the mold.

Abstract: An etching system having a first member for unrolling and fastening a protective film on one side of a continuous strip of metal and a second member for smoothly stripping the protective film from the continuous strip of metal after the continuous strip of metal and the protective film have passed between sets of spray jets that are located on opposite sides of the continuous strip of metal. Further etching and rinsing stations are provided for completing the etching process to enable mass production of television aperture masks having a plurality of openings which have a dimension on the order of or less than the thickness of the mask material.

Abstract: A process for obtaining the proper albedo of a molybdenum article by oxidation of the surface of the article through control of the oxidation temperature, the oxidation time, and the atmosphere so as to prevent destruction of the physical characteristics of the molybdenum article.

Abstract: An echo sounding device for searching and exploring the depth of a body of water is provided with a cathode ray tube (CRT) display showing the echo returns. A memory device is provided to store the electrical signal levels of the echo returns while new signal returns are being received to enable presentation of a bar-graph type of display on the CRT.

Abstract: Improved cutting teeth for etched abrading material and process for etching the abrading material are provided wherein the improved teeth comprise substantially flat top posts haing substantially straight or vertical sides. In addition, selected dimensional ratios are maintained between the etched teeth and the thickness of the base material to provide a flexible etching abrasive that has long life and will smoothly and efficiently abrade the surface of an article.

Abstract: A shadow mask for a colored TV picture tube contains the conventional foraminous or translucent area formed by multiple vertical rows of miniature apertures or slits with the improvement being a pattern set of recesses which are located between the rows of slits and which extend into the margin of the mask. Because of the patterned set of recesses, doming the mask can be accurately and smoothly accomplished for insertion into the envelope of a colored television picture tube.

Abstract: A step-up transformer is connected to a reference potential level and is coupled to a multiple-electrode gas-filled discharge tube to provide a pulse of sufficient magnitude to fire the tube and thereby protect a signal line and the equipment to which it is connected against voltage surges which may be harmful but which are otherwise too low to ignite the tube.

Abstract: A sheet of metallic material having a thickness T is covered on one side by an etchant resist and on the opposite side by an etchant resist and a removable shield. Etching is first performed on the side with only the etchant resist layer. Next, the shield is removed and the material is etched from both sides to produce an opening having a minimum dimension less than the thickness T of the material.

Abstract: A compact lightning arrester is formed from a cylindrical housing and a plurality of electrodes which are located in a spaced relationship from the housing and are hermetically sealed within the cylindrical housing.

Abstract: A sheet of metallic material having a thickness T is covered on one side by an etchant resist and on the opposite side by an etchant resist and a removable shield. Etching is first performed on the side with only the etchant resist layer. Next, the shield is removed and the material is etched from both sides to produce an opening having a minimum dimension less than the thickness T of the material.

Abstract: A manifold is provided for use in the etching or plating of materials which continuously supplies fresh fluid to the surface of an article to be etched while continuously removing the old fluid that is adjacent the surface of the article that is to be etched. The transfer of fluid is accomplished by a plurality of sources and a plurality of funnel-like sinks.

Abstract: A terpolymer plastic lens having equal or greater light transmission, greater hardness and scratch resistance equal to the monomers used in prior art plastic lenses is obtained by the co-polymerization of diethylene glycol bis (allyl carbonate), methyl methacrylate and methacrylic acid or acrylic acid.

Abstract: Improved cutting teeth for etched abrading material and process for etching the abrading material are provided wherein the improved teeth comprise substantially flat top posts having substantially straight or vertical sides. In addition, selected dimensional ratios are maintained between the etched teeth and the thickness of the base material to provide a flexible etching abrasive that has long life and will smoothly and efficiently abrade the surface of an article.