Abstract: An apparatus for and method of making a connection between an electrical conductor and an anode so that the conductor is attached to the anode to supply electrical energy thereto for use in cathodic protection systems. The apparatus includes male and female members of electrical conducting material having cooperating frusto-conical surfaces and such members are received within a bore in an anode. Normally the male member is connected to the electrical conductor and is positioned at the bottom of the bore after which the female member is forced over the male member which causes the female member to expand into intimate engagement with the side walls of the bore. The method includes the steps of placing a male member having a frusto-conical outer surface into a bore of an anode and then forcing a female member having a cooperating frusto-conical inner surface onto the male member to cause the female member to expand into intimate engagement with the walls of the bore.

Abstract: This method makes an electrical coil from conductive wire having an insulating coating bonded thereto and provides the coil with at least one conductive lead. The coil winding operation is stopped when a predetermined wire region is located at a work station, where a section of the insulating coating is removed, thereby exposing a section of bare wire. Then there is placed in contact with the section of bare wire and cold-welded thereto a thin conductive strap that extends transversely of the wire and forms said lead. Then the cold-weld joint and a portion of the lead are covered with electrical insulation by applying to opposite faces of the lead two strips of insulating material that extend transversely of the wire on opposite sides of the wire. Then the strips are bonded together, following which the winding operation is continued to complete the coil with said strips extending generally parallel to the coil axis.

Abstract: A protective layer composition, suitable for protecting metal electrodes on components and other microelectronic circuitry, comprises an organic thermoplastic polymeric material, an organic solvent or solvents, and a non-ionic fluorocarbon surfactant as a wetting/leveling/flow control agent. A typical formulation comprises an aromatic polymer which cures to form a polyamide-imide polymer, an organic solvent or a mixture of orangic solvents and a non-ionic fluorocarbon surfactant.

Abstract: A tube of ceramic dielectric material having inner and outer electrodes formed thereon is immersed in an alcohol solution of rosin to form a rosin film over the entire exposed surfaces thereof. A pair of metal caps, each having a plurality of circumferentially spaced inward projections and a thin solder layer covering at least each inward projection, are then pressed onto the opposite ends of the ceramic tube, thereby embedding the inward projections of each metal cap in one of the electrodes. The solder layer on each metal cap projection is then melted to establish firm mechanical and electrical contact between electrodes and metal caps. Semiflexible, hermetic sealing joints are then formed at least between electrodes and metal caps by applying an insulating paint while the ceramic tube and metal caps are being heated to partly evacuate the interior thereof. Finally, an external covering comprising one or more insulating layers is formed at least over the sealing joints and a region therebetween.

Abstract: A rolled metallized film capacitor is encased between a pair of box halves (13 and 13') each having a pair of dovetailed slots (36 and 37) formed in opposed walls so that when the box halves are assembled about a capacitor blank (10) the slots in the respective box halves are aligned with each other. The box halves are mounted in abutting relation about a pair of parallel wires (11 and 12), and then heat fusible metal (46 and 47) is deposited in the aligned slots to lock the box halves together while bonding the wires (11 and 12) to opposite ends of the capacitor blank (10). When assembled, the boxed capacitor with the laterally extending leads may be readily machine inserted or otherwise assembled in a circuit module, such as a printed circuit board.

Abstract: A pair of pointed terminals are heated and forced through opposed side walls of an open-ended box constructed of thermoplastic material. A rolled film capacitor blank having heat fusible end electrodes is moved into the box to deflect the terminals so that the terminals are forced into firm engagement with the end electrodes. The heated terminals are effective to soften or melt the engaged portions of the electrodes to bond the terminals to the capacitor blank.

Abstract: An anode connector for use in an impressed current cathodic protection system comprising a cup-shaped housing member made from a material which is permanent under anodic conditions with a plug insert member with a central aperture made from conventional current carrying metals which is press fit into the cup-shaped housing. The cup-shaped housing can then be welded to an anode. A cable conductor for the anode which is well insulated except for the end is positioned with the uninsulated end in the central aperture of the plug insert and soldered thereto to provide excellent electrical conductivity between the cable and the plug. The cup is then filled with suitable insulating potting material which covers the plug and the cable conductor to a height above where the insulation begins. This invention provides a rigid, reliable anode connector which is able to withstand anodic conditions in an impressed current cathodic protection system while still providing the current to the anode.

Abstract: A rolled metallized film capacitor is terminated with bimetallic terminals. A method of manufacture of this terminated capacitor contemplates inserting a capacitor blank with heat fusible end electrodes in a plastic box to position the electrodes between a pair of "L" shaped bimetallic terminals constructed of laminations of materials having different coefficients of expansion. The terminals extend through opposed walls of the box and are heated to flex feet of the terminals into firm engagements with the end electrodes whereupon the heat is effective to bond the terminals to the capacitor blank. Encapsulant is deposited in the box to provide a moisture seal while also assisting to hold the terminals in the bonded positions.