Abstract: Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.

Abstract: A device (26) for softening the insulation of a wire (21) having a pair of opposed rollers (28, 30) and means (22) for mounting the rollers. The rollers (28, 30) are mounted in such a manner as to be movable away from one another to enable an insulated wire (21), to be wire wrapped on a terminal, to be passed therebetween. The rollers (28, 30) are also movable towards each other for engaging and softening the wire insulation.

Abstract: A power operated tool (20) functions to cut and collect a multitude of precious metal contacts (11,11) from wire spring relays (10). The tool (20) includes a pair of jaws (31,32) that in the open position fit over several rows of contacts (11,11). When the tool (20) is energized, the jaws (31,32) are snapped shut thereby severing the contacts (11,11) from the relays (28). The jaws (31,32) in the closed engaged position define a closed chamber (41) having a port (44) for attachment to a vacuum source for sucking the severed contacts (11,11) into a collection vessel. The jaws (31,32) reopen following collection and the tool (20) is ready to cut the next set of spring contacts (11,11).

Abstract: An apparatus (50) for cutting a wire (21) and softening the insulation thereof. The apparatus (50) is comprised of a pair of wire cutters (52) with a pair of opposed rollers (74, 76) associated therewith. The rollers (74, 76) are mounted for relative movement away from one another to enable an insulated wire to be passed therebetween and into the wire cutters (52). The rollers (74, 76) are also relatively movable toward each other for engaging and softening the wire (21) insulation upon actuation of the wire cutters (52) to cut the wire.

Abstract: A wire wrapping tool (10) includes a gun (20), a bit (24) for cutting, stripping and wrapping a wire (21), a sleeve (25) for receiving the bit and a wire softening device (26). The device (26) includes a pair of opposed rollers (28,30) for softening the wire (21) pulled therethrough.

Abstract: A method of making solder spheres having non-oxidized surfaces by introducing solder into a flux composition comprising an activator and an antioxidant. Molten solder (12) is extruded into a flux composition (24) maintained at ambient temperature or solder powder (40) is sifted into hot flux (46) and then cooled.

Abstract: The quality of a plasma etching process is improved by applying a DC potential (28') to one of the energizing electrodes (12') in the reaction chamber (11').The DC potential withdraws a small current from the plasma which causes the reaction to produce a uniform, controllable self-bias on the workpiece placed on the opposite (or second) electrode.

Abstract: An electronic device such as an integrated circuit is encapsulated within a silicone resin formulation having a metallo-porphyrin compound contained therein. The compound is cleaved by HCl to form a porphyrin diacid chloride and a free metal having the capability of chelating chloride ions and hydroxyl groups thereby preventing corrosion and anionic attack of metallic circuit elements and development of unwanted conductive pathways.

Abstract: An RF-excited radial-flow, cylindrical plasma reactor (10) includes a toroidal waveguide (17) of rectangular cross-section connected to a microwave source (21). One of the reactive species (37) is flowed through the waveguide and pre-ionized, thus, permitting independent control over the activation of both reactive species.