Abstract: A keyboard assembly includes an insulative substrate upon which are carried a plurality of conductive paths. Respective portions of the paths are selectively bridged upon depression of a dome-shaped conductive resilient contact element. A pair of space-opposed regions of the dome's marginal portion are deformed downwardly away from its apex so as to constitute a pair of space-opposed feet. The feet have a complex shape which leads to high lifetime of the dome. Preferably, the feet rest on corresponding conductive pads, and the pad pairs for adjacent domes may be differently oriented so as better to accommodate the passage of leads between those domes. Leads on the substrate passing beneath dome edges desirably are depressed into the substrate. Overlying the domes in a completed assembly is a layer of deflectable insulating material that is adhesively affixed to the substrate and to the domes; the latter includes an aperture in registry with each dome but of a diameter smaller than the width of such dome.

Abstract: A luminous mark on an object is provided by a phosphor and a source of nuclear radiation in an indentation of the object, the materials being held in place by a transparent cover closing said indentation.

Abstract: Structural and decorative boards laminated with a hard plastic veneer are given a relief appearance by forming a rabbeted groove, preferably rectangular in outline, and mounting therein tapered laminated strips having a thickness along one edge substantially corresponding to the depth of the groove and along the opposite narrow edge being substantially flush with the base of the groove. The entire panel thus presents a relief configuration while the exposed surfaces are covered by the plastic veneer. The panels may be used for doors used in kitchen cabinets, bathroom vanities and the like.

Abstract: A method of making simulated stained glass articles, and articles, such as Tiffany lamp shades made thereby, comprising forming a first pre-form of translucent material with first and second smooth surfaces, applying a pre-patterned colored film over the first surface of the first pre-form, forming a second pre-form of translucent material with a smooth first surface and preformed in the second surface channels adapted to register with the boundaries of the different colors of the film, placing the second pre-form over the first pre-form so that the first surface of the second pre-form is in contact with the film, applying a leading effect in the channels and sealing the free edges of the two pre-forms to one another.

Abstract: The invention provides for repairing a crack in a pane of plate glass caused by the impact of a hard object without removing the glass from its location by cutting out a section from the glass surrounding the crack and replacing it with a disc of a similar sheet of glass.

Abstract: Photopolymeric image inlay articles comprising a photopolymeric image inlaid into a resilient polyester resin coated matrix of a solidified synthetic rock-like mixture.

Abstract: A block of plastic is provided with a cylindrical well having an axial pillar in its inner portions over which an annular ferrous ring is mounted. A cylindrical plug is inserted in the well along with a mixture of solvent and powder of the same material as the block, heat and pressure are applied to meld the plug and the block with the ring embedded therein and the block is ground and polished to provide a resultant contact lens that can be removed from the eye of a wearer by a magnet. In another embodiment, the ring can be of various colors for cosmetic effect and can be non-concentric with respect to its axis to provide an offset center of gravity to provide a desired rotational positioning of the lens in the eye of a wearer when the lens is of bifocal or similar type.

Abstract: A process for joining abutting thermoplastic synthetic resin foam structures by a strip which covers a junction zone formed between the foam structures including the steps of pressing a metal strip heated to above the softening point and or the melting temperature of the synthetic resin foam under slight pressure onto the junction zone and then allowing the metal strip to cool. In this manner, a bond is formed between the foam structures and the metal strip.

Abstract: A message tape for instrument display systems includes laminations of metallic and plastic materials. Messages are etched through a metallic lamination and dyes are applied through the etchings to provide color coding without introducing dimensional buildups. The dyes are retained by a plastic backing lamination. The tape has the main advantage of being useful at elevated operating temperatures and ancillary advantages of improved image quality and lighting efficiency.