Abstract: A two piece dental crown comprises cup-shaped inner (12) and outer (16) members, the inner member being adapted to be mounted on the occlusal portion of a tooth being capped, and the outer member being adapted to be mounted on the tooth including the inner member, the side wall (18) of the outer member extending beyond the side wall (20) of the inner member and into contact with the gingival portion of the tooth. In use, the inner and outer members are rigidly bonded together in slightly spaced apart relation. In one embodiment, a stiffening member is bonded to the two members in the space therebetween.

Abstract: Techniques for terminating one or more flat flexible cables (38A,38B) are disclosed. A floor plate (21) used in such terminating is adapted to receive one or more insulation-piercing connectors (28) in one or more recesses (27) in an upstanding wall (26) along an edge of the floor plate. Each connector may alternatively receive, in independent manner and in electrical isolation from one another, either one or two flat flexible cables at the option of a user. Suitable, temporary protective cover (61) and final housing (71) facilities are also disclosed.

Abstract: A via (21) is formed in a multilayer printed circuit board (10) by initially etching apertures (14) in the land areas (13) of the circuit pattern on the layers (11) prior to uniting the layers. A beam (16) of laser energy is then directed through the apertures to form a via through the printed circuit board. Each via is defined by the apertures in a plurality of vertically aligned land areas. The via is then electrolessly plated to provide electrical connections between vertically aligned land areas.

Abstract: A floor plate assembly (11), for terminating flat flexible cables (22,22) at two bracket members (14,14) on the plate, is disclosed. The floor plate has adequate area to assure firm adhesive bonding to a floor (73), with flat flexible cables being laid over the plate. Protective flanges (29,29) are provided on a pair of complementary, temporary cover sections (26,26) and an optionally pivotable bracket member (44) to protect substantial lengths of cable from accidental cutting during carpet-laying operations. The plate and a permanent housing (72) cooperate to clamp the carpet (74) about the bracket members, without creating undue stresses on an adhesive bond between the plate and the floor during threaded attachment of the housing to the bracket.

Abstract: An electrical connector is adapted for terminating a number of substantially flat conductors in a flat flexible cable, e.g., by soldering. The connector includes a number of contact members, each of which has a generally U-shaped portion with a substantially flat base. The contact members are so positioned within the recesses in a housing of the connector that the substantially flat bases of the generally U-shaped channel portions extend outwardmost from the interiors of the recesses, forming an outwardly-oriented, substantially planar surface to which the substantially flat conductors may readily be interconnected. By interchanging certain existing male and female contact members and inverting them from their previous attitudes within recesses in the housings of prior art connectors, such existing male and female contact members may be employed, with little or no change in their structures, in the new connector.