Abstract: Apparatus and method for inductively coupling electrical power to a plasma in a semiconductor process chamber. In a first aspect, an array of wedge-shaped induction coils are distributed around a circle. The sides of adjacent coils are parallel, thereby enhancing the radial uniformity of the magnetic field produced by the array. In a second aspect, electrostatic coupling between the induction coils and the plasma is minimized by connecting each induction coil to the power supply so that the turn of wire of the coil which is nearest to the plasma is near electrical ground potential. In one embodiment, the hot end of one coil is connected to the unbalanced output of an RF power supply, and the hot end of the other coil is connected to electrical ground through a capacitor which resonates with the latter coil at the frequency of the RF power supply.

Abstract: An auxiliary power unit (“APU”) system and methods used to bring such system on-line and off-line are disclosed. An APU generator forming part of an APU system, is brought “on-line” smoothly in order to replace a primary generator operating at a steady-state rotational speed that is interconnected with a load. A controller forming part of the APU system controls rotational speed of the APU and thereby the generator so that it approaches a rotational speed beneath the steady-state rotational speed of the primary generator. The controller then connects the APU generator to the load and the primary generator. This causes the APU generator to motor at the steady-state rotational speed dictated by the primary generator. Thereafter, the controller may increase rotational speed of the APU generator until it provides power to the load and the primary generator may be disconnected from the load.

Abstract: Apparatus and method for inductively coupling electrical power to a plasma in a semiconductor process chamber. In a first aspect, an array of induction coils is distributed over a geometric surface having a circular transverse section. Each coil has a transverse section which is wedge-shaped so that the adjacent sides of any two adjacent coils in the array are approximately parallel to a radius of the circular transverse section of the geometric surface. The sides of adjacent coils being parallel enhances the radial uniformity of the magnetic field produced by the coil array. In a second aspect, electrostatic coupling between the induction coils and the plasma is minimized by connecting each induction coil to the power supply so that the turn of wire of the coil which is nearest to the plasma is near electrical ground potential. In one embodiment, the near end of each coil connects directly to electrical ground. In second and third embodiments, two coils are connected in series at the near end of each coil.

Abstract: The present invention provides a method of inhibiting connective tissue degradation that comprises administering to a patient having a condition in which connective tissue is degraded a therapeutically effective amount of a compound having the formula where R1, R2, R3, and R4 are independently hydrogen, hydroxy, halo, amino, nitro, C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, CF3, CN, S(O)n—, R6 and R7 are independently hydrogen, C1-C6 alkyl, or acyl; n is 0 to 2; R8 is hydrogen or C1-C6 alkyl; W is S or O; Z is C1-C6 alkyl, C1-C6 alkoxy, or NR9R10; R9 and R10 are independently hydrogen or C1-C6 alkyl; and R5 is where Y is hydroxy, thiol, amino, or NHCN; X is sulfur or oxygen; and Q is sulfur, oxygen, NH, or NCN, and the pharmaceutically acceptable salts and prodrugs thereof.

Abstract: A formulation of chemical surfactants, solvents and inorganic salts is effective for dispersing heavy oils in both salt and fresh water. The formulation comprises a mixture of a sorbitan ester of an aliphatic monocarboxylic acid, a polyoxyethylene adduct of a sorbitan monoester of an aliphatic monocarboxylic acid, an alkali metal salt of a dialkyl sulfosuccinate, a polyoxyethylene adduct of a sorbitan triester of a monocarboxylic acid, a solvent comprising a hydrocarbon and/or a glycol ether and an inorganic salt containing a soluble divalent cation such as calcium or magnesium.

Abstract: An improved low voltage winding for dry insulated transformer has its windings resin encapsulated. The winding is constructed with flexible sheet conductors wound coincident with an insulating sheet material. Insulating spacers provide a means to form air channels in the windings during the coil forming process. A sealant is applied to openings at the lower ends and along vertical seams of the coil prior to the resin impregnation and encapsulation process. This will prevent drainage of the resin during a curing cycle. The result is a coil that exhibits high short circuit protection due to the tightly bond sheet conductors which will prevent movement of the conductors during short circuit conditions and also increases the radial compressive strength of the coil.

Abstract: A method and apparatus for actively controlling the DC cathode potential of a wafer support pedestal within a semiconductor wafer processing system. The apparatus contains a variable DC power supply coupled through an RF filter to a cathode pedestal. The variable DC power supply is actively controlled by a control signal generated by a cathode bias control unit, e.g., a computer or other control circuitry. The cathode bias control unit can be as simple as an operator adjustable control signal, e.g., a rheostat. However, for more accurate control of the DC power supply, a feedback circuit is used that generates a control signal that is proportional to the peak-to-peak voltage on a cathode pedestal. The application of the DC bias to the pedestal reduces the DC potential difference between the wafer and the cathode and, thereby avoids arcing from the wafer to the pedestal.

Abstract: The manufacture and use of compounds of the formula ##STR1## wherein Y is O or S, R.sub.1 is hydrogen or alkyl, and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen or various substituent groups, and pharmaceutically acceptable acid addition salts thereof. The compounds have activity as inhibitors of the IL-I or other agonist-induced proteoglycan degradation in bovine nasal cartilage and pharmaceutical compositions containing such compounds are described to treat conditions advantageously affected by such inhibition including arthritis.

Abstract: A tire mold having an upper half, a lower half, and a hinged segmented center ring mounted on the lower half. The center ring has an upper register between the ring and the upper mold half and a lower register between the center ring and the lower mold half to support the center ring during molding. The lower register is provided by engagement of an inclined surface on the center ring with a lower register surface on a ring flange positioned between the hinge axis of each center ring segment and the inclined surface of the segment. The hinge axis is positioned below a lower split plane between the lower mold half and center ring. The height of the ring flange and the inclination of the lower register surface is selected to provide for swinging movement of the center ring segments with the least interference between the center ring and the tire tread during opening of the mold and to provide the maximum support of the center ring segments during molding of a tire.

Abstract: Heated hydrocarbon crude oil is passed into a first flash zone wherein it is separated into a first flash vapor and a first flash liquid. First flash vapor is water washed to remove soluble contaminants, and the resulting wash water and the first flash liquid are passed to a desalter. First flash liquid having substantial freedom from water soluble contaminants is passed from the desalter into a second flash zone wherein it is separated into a second flash vapor and a second flash liquid. The second flash liquid is passed into a conventional fractionation zone comprising a crude column and a vacuum column.