Abstract: A device for the gasification of waste, particularly light waste, is comprised of a reactor having a single fluidized bed including two concentric chambers communicating at the top and bottom wherein the outer chamber is intended to implement the pyrolysis of supplied waste and the inner chamber is intended to implement the combustion of pyrolyzed materials. A circulation of pyrolysis gas and combustion gas is established between the outer chamber and the inner chamber.

Abstract: An array of electrodes is presented for accurate and improved measurement of borehole resistivity. Electrode structures and methods of formation thereof are also presented.

Abstract: A method of producing precision abrasive articles by electroforming for use in metal removal operations. In this method abrasive particles are packed firm between the inner circumferential surface of a mold and a centrally located metallic grid. Electrolyte for metal deposition is then introduced into the space containing the abrasive particles. An electrical cathode connection is made to the mold and an anodic connection made to the anode. Metallic deposition around the abrasive articles occurs on the inner annular surface of the mold and continues until a matrix supporting the abrasive particles is formed. The mold with the matric is then removed to receive core material, and the core is then machined to finished dimensions. The method is carried out at low temperatures and without any movement of the mold.

Abstract: An embroidery machine is presented which automatically executes the embroidery designs stored on a storage medium by electronic and mechanical means; and which records the movements of an embroidery specialist, who executes as a model, the embroidery design to be produced automatically by the machine.

Abstract: High frequency noise is decoupled from power supplied to Pin Grid Array (PGA), surface mounted leaded chip carrier and surface mounted leadless chip carrier packages by insertion of a decoupling capacitor between the PGA or leaded chip carrier package and printed circuit board; or by mounting the decoupling capacitor over a leadless chip carrier package. The decoupling capacitor comprises a multi layer capacitive element sandwiched between a pair of conductors and having a plurality of leads extending from each conductor. In accordance with the present invention, the decoupling capacitor is individually dimensioned and configured to fit under a PGA or leaded chip carrier package, or over a leadless chip carrier package; and correspond to the power and ground pin or lead configuration of that PGA, surface mounted leaded chip carrier and surface mounted leadless chip carrier package.

Abstract: Several embodiments of a decoupling capacitor are described which incorporate at least one multilayer capacitive element and which utilize metallized dielectric (i.e., ceramic) substrates rather than a pair of conductors. Also, several types of multilayer ceramic capacitor elements are disclosed which provide a low induction parallel-plate type capacitive structure. The decoupling capacitor assemblies of the present invention are specifically sized and configured so as to be either received in the space directly below the integrated circuit chip and between the downwardly extending pins of a PGA package or "leaded" chip carrier package or to be mounted directly over a "leadless" chip carrier package.

Abstract: The infusion of fluid from the formation being drilled into a borehole is detected by modulating the drilling fluid stream in the drill pipe and detecting pressure variations commensurate with the modulation at the surface in the annulus between the drill pipe and wall of the well. The detected pressure variations are compared in phase and/or amplitude with their own near term past history or with the drilling fluid pressure variations in the drill pipe resulting from the modulation. Variations in phase or amplitude which can not be attributed to changes in the drilling operation will be indicative of fluid infusion.

Abstract: The infusion of fluid from the formation being drilled into a borehole is detected in an MWD system by modulating the drilling fluid stream in the drill pipe and detecting pressure variations commensurate with the modulation at the surface in the annulus between the drill pipe and wall of the well. Modulation to generate the pressure variations in the annulus is accomplished by the same pressure generating element used to generate pressure signals in the mud column for MWD measurements. The detected pressure variations are compared in phase and/or amplitude with their own near term past history or with the drilling fluid pressure variations in the drill pipe resulting from the modulation. Variations in phase or amplitude which can not be attributed to changes in the drilling operation will be indicative of fluid infusion.

Abstract: An insulative waterproof drainage material is presented. The insulative drainage system comprises, in part, a plastic sheet having a plurality of alternate valleys and raised portions in the sheet defining a core. Preferably, the core leads to a slotted pipe. The core has two opposing surfaces. One surface has a water previous fabric material attached thereto while the other surface has a layer of thermally insulative material, preferably a polymeric foam material thereon. The foam or other insulative material has a pre-selected thickness which provides a sufficient R (thermal) value. This insulative drainage system is formed into panels and then adhesively applied to the exterior of a foundation or other retaining wall using any suitable and well known adhesive. Preferably, each panel is provided with interlocking joints which permit a watertight fit between adjacent panels.

Abstract: A blast pipe for delivering refining oxygen to the space above a metal bath in a refining operation is presented. The blast pipe is positioned in a gas supply duct and is provided with a pressure regulating valve. The blast pipe comprises a fixed straight wall portion along which the gas flows in a linear path. The straight wall portion terminates at a sharp edge, constituting a portion of the blast pipe exit orifice. A bent wall segment is located adjacent to and downstream of the straight wall portion and connects the remainder of the straight wall portion to the exit orifice. The bent wall segment preferably has a convergent configuration, upstream of the sharp edge, and a divergent configuration downstream thereof. The exit orifice, in cross section, has the shape of a rectangle, one of the long sides of which constitutes the sharp edge.

Abstract: An article of wearing apparel, to be worn on the upper body of a subject, includes a portion for covering the back of the subject. Sensors for sensing the changes in posture of the subject and providing electrical signals proportional to the degree of change in posture are removably mounted on the portion for covering the back of the subject. Electronic circuitry analyzes the electrical signals to provide an output, which can be sensed by the subject, when the posture of the subject deviates from a pre-set postural position by a predetermined amount. The electronic circuit is disposed in a carrier which is also removably mounted from the article of clothing apparel.

Abstract: A nozzle for refining metals or ferroalloys by oxygen blasting from above the melt is presented. The nozzle terminates at a nozzle head and includes at least one central blast pipe for directing a jet of oxygen having supersonic speed. A chamber is interposed between the mouth of the blast pipe and the mouth of the nozzle head. This chamber widens progressively from the mouth of the blast pipe, and narrows toward the mouth of the nozzle head. At least one opening from at least one lateral duct opens to the chamber in the vicinity of the blast pipe mouth. Each lateral duct is connected to a source of gas, and includes an inidividual flow control valve. Preferably, at least three lateral ducts are arranged symmetrically around the blast pipe mouth.

Abstract: A nozzle for the refining of metals by oxygen blasting from above the melt is presented. The nozzle includes a nozzle head having a blast pipe therethrough upstream of the mouth of the nozzle. The blast pipe directs a jet of gas comprised, at least in part, of oxygen, having a supersonic speed onto the melt. The blast pipe includes an inner tube. The lower portion of the inner tube has a throat positioned between a convergent and divergent sections, this lower portion defining a laval nozzle. The blast pipe also includes an outer tube coaxial with the inner tube and having a greater cross section than the inner tube. The mouth of the inner tube is spaced back (downstream) from the mouth of the blast pipe. The inner and outer tubes are each provided with flow control valves, and are connected to sources of pressurized gas. Devices are provided to vary the cross sectional area of the mouth of the inner tube.

Abstract: A handling device for the distribution spout of a shaft furnace is presented. The handling device comprises a front axle and a rear axle with each axle being mounted on movable rollers. The axles are positioned on two rails which are opposite an access aperture in the head of the furnace. The rails are suspended underneath a working platform positioned around the furnace head with a tilting frame mounted on the front axle. A supporting cradle for the spout is freely suspended at the front end of the frame and subjected to the action of a counterweight and a supporting cable. The rear end of the frame is articulated to the front ends of two arms mounted on the rear axle. Finally, a jack is pivotably mounted between the ends of levers, the levers being affixed to the rear axle and to the rear end of the frame respectively.

Abstract: A downhole motor and bearing assembly has a tubular housing with an inlet and outlet for flow of drilling fluid. A stator is supported in the housing and a rotor is supported for rotary movement in the stator. An open tubular shaft is connected to the rotor for rotary movement in the housing. The bearing assembly has bearing members in the housing in fixed spaced relation and other bearing members cooperable therewith. Sleeve members positioned in the housing support selected bearing members in a fixed spaced relation. Other sleeve members positioned on the shaft support the other bearing members in a fixed spaced relation. The sleeve members are interchangeably positioned in the housing and on the shaft to position the bearing members in selected interchangeable relation according to the need for the bearings to support a load in a forward or reverse direction. A radial sleeve bearing is supported in the housing in a bearing relation to the shaft in a position forward and backward of the bearing assembly.

Abstract: An apparatus for distributing charge material to a shaft furnace is presented which effectively reduces the segregation of the particles in a storage housing positioned above the shaft furnace. In the present invention, the storage hopper and the distribution device are movable about the vertical axis of the shaft furnace and are mounted inside a sealed chamber. Above the chamber are arranged at least two locks which are each provided with upper and lower sealing flaps. Preferably, the storage hopper and the bottom of each of the locks are in the configuration of tapered funnels, the conical wall of which forms an angle of less than or equal to about 30.degree. with respect to the vertical axis of the furnace. The storage hopper is preferably supported by support and guide rollers which move on a circular rail integral with the wall of the sealed chamber and is subjected to the action of a drive mechanism for rotation about the vertical axis of the furnace.

Abstract: A writing instrument, having a mechanism for alternately retracting and protracting its writing point, comprises a shackle alternately closed and opened by that mechanism, for releasably fastening to an associated object.

Abstract: A continuous method of manufacturing a drainage system and apparatus therefore comprises a continuous assembly line which forms a plastic core material followed by continuously forming an envelope surrounding the formed plastic core and then sealing the stuffed envelope. In a preferred embodiment of the present invention, an extruder is used to transform granulated plastic material into sheet form. This plastic sheet is then fed directly into a plastic forming machine. The plastic forming machine will form a plurality of hills and valleys in the plastic sheet thereby defining a plastic core. Thereafter, continuous sheets of permeable fabric material are attached to the upper and lower surfaces of the formed core while the edges of the permeable fabric are secured to one another either by adhesive, sewing or any other suitable bonding method. Next, the draining system is either cut into desired lengths or rolled for shipping purposes.