Abstract: Circulating completion, workover and drilling fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used by a programmable controller to divert viscous fluid from the filter, or to take other action to prevent damage to the filter. The viscometer can be used in various positions in the system. Fluids deemed too viscous for the filter can be sent to a viscosity-reducing device, which may be a heating, shear-thinning, or cavitation device, to reduce its viscosity, enabling the fluid to pass through a filter without fouling. After filtering and a return to a lower temperature, the fluid may be treated if necessary to become viscous again for a useful purpose.

Abstract: A cavitation device is used to heat and facilitation the separation of mixtures and emulsions of oil and water. Waste heat from the power source for the cavitation device may be utilized to elevate the temperature of incoming mixtures or emulsions. The heated mixture of emulsion is sent to a separation vessel where vapor may be removed and/or recovered, and where oil is removed as it separates into an identifiable layer. The separation vessel may be a flash tank.

Abstract: Cesium solutions are treated in a cavitation device to increase their temperature and facilitate the removal of water from them. The context is normally an oil well fluid or a mining solution. The concentrated solutions can be reused, in the case of oil well fluids, or more easily handled for recovery of the elemental cesium or cesium in the form of a salt. Thermal energy is saved by using the concentrate or the water vapor to heat various streams within the system.

Abstract: A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device can be powered by a Diesel engine whose exhaust may be used to heat the incoming fluid, and the product of the cavitation device is directed to a flash tank.

Abstract: A screen for separating solids and liquids is formed from parallel strips of wedge wire or similar material into a substantially cylindrical two-sided enclosure in a generally C-shaped profile. Unfiltered liquid containing solids contacts the screen surface on both the convex and concave sides of the C-shaped enclosure. The unit may be placed in a vessel adapted to accommodate two such C-shaped devices in concentric relationship. The vessel may function similar to a candle filter, or a more conventional flow may be used.

Abstract: A permeable mass is constructed downhole in a well by placing thermoplastic particulates downhole and fusing them together by heating or solvating.

Abstract: Dual phase steel sheet is made using a time/temperature cycle including a soak at about AC1+45° F. to AC1+135° F. and a hold at 850-940F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum: 0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn+6Cr+10 Mo)=at least 3.5%. The sheet is preferably in the form of a strip suitable for coating in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite. The strip may be galvanized or galvannealed at a temperature within thirty degrees F. of the temperature of the bath.

Abstract: Steel cabinet parts and other steel objects are electrocoated in a cationic resin-containing bath. The steel objects are chromium-coated, free of phosphate and preferably free of chromium oxide. The products are not significantly subject to filiform corrosion, and the process is economically beneficial because throwpower is more easily controlled than in previous processes.

Abstract: An articulated athletic goal can be raised to a high position and/or a low position relative to the game position, for safety and security. The crossbar and uprights are supported on the end of a boom pivoted on a vertical column and powered by a hydraulic actuator, which may be operated remotely. Through either a parallel linkage or a separate hydraulic actuator, the uprights are held in a substantially vertical orientation throughout the pivoting motion. In a preferred embodiment, the boom is mounted on a single pivot and articulation enables the boom to be oriented substantially vertically downward. The boom is provided with a second, smaller, actuator, for releasing the crossbar/upright assembly when it is near the field, completely separating the crossbar/upright assembly from the boom. The sacrificial crossbar/upright assembly may then be removed by spectators without the dangerous and destructive mob action previously associated with after-game celebrations.

Abstract: Circulating completion and workover fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used by a programmable controller to divert viscous fluid from the filter, or to take other action to prevent damage to the filter. The viscometer can be used in various positions in the system.

Abstract: A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device is powered by a Diesel engine whose exhaust may be used to heat the incoming fluid, and the product of the cavitation device is directed to a flash tank.

Abstract: An air sampler is designed for a predetermined flow rate. The air flow is admitted to at least two impactors operating in parallel. Preferably the inlet nozzles and the outlet orifices of each impactor are sized to achieve predetermined cut-off sizes of particles; preferably the composite curve of all the impactors will mimic a predetermined particle sampling efficiency curve.

Abstract: An articulated football goal post can be raised to a high position and a low position relative to the game position, for safety and security, and to facilitate the attachment of television cameras and the like. The crossbar and uprights are supported on the end of a boom pivoted on a vertical column and powered by a hydraulic jack, which may be operated remotely. Through either a parallel linkage or a separate hydraulic jack, the uprights are held in a substantially vertical orientation throughout the pivoting motion.

Abstract: A checkweighing station includes a weigh platform mounted on a load cell which in turn is mounted on a rotatable shaft so that the entire assembly can be rotated to tilt the platform in one direction for an acceptable weight of a weighed item and in another direction for a rejected weight or weight of a different catgegory. A memory device can determine a trend and make adjustments in a production process.

Abstract: Dual phase steel sheet is made using a time/temperature cycle including a soak at about 1340-1425F and a hold at 850-920F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 1.5-2.40; chromium: 0.03-1.50; molybdenum: 0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: Mn+6Cr+10Mo)=at least 3.5%. The sheet is preferably in the form of a strip treated in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite.

Abstract: Combinations of Bis (Trichloromethyl) Sulfone and 1,2-dibromo-2, 4-dicyanobutane are shown to have synergistic antimicrobial properties. Preferred compositions use the two components in ratios of 1:99 to 99:1 by weight. The synergistic combinations are used in paints and adhesives, and in various industrial process waters. The synergistic compositions may be used together with a third microbiocide to enhance the composition's effectiveness against a wide variety of bacteria, molds, and yeasts and other microorganisms.

Abstract: A constant flow of air through a personal air sampler is provided regardless of changes in the air flow path, by altering the pump speed as a function of the power taken by the pump. The characteristics of the pump are precalibrated to provide a constant used together with the square of the voltage appearing across the motor armature coils (applied voltage minus back Emf), which reflects the power currently used, to adjust the motor speed and thus provide a constant flow of air under changing conditions of resistance.

Abstract: A hard, wear-resistant ceramic surface is applied to spinning rotor cups in an electrolytic bath on which is imposed a shaped-wave electric current. A special electrode has been designed to facilitate application of the coating to the unique shape of a spinning rotor cup under the shaped wave conditions.

Abstract: An improved random-dumped packed bed for effecting inter-phase heat and mass transfer. The packed bed is a plurality of a first packing size substantially uniformly mixed and co-mingled with a plurality of the suitable second larger packing size. The mixed bed so formed provides the additional surface area and mass transfer capacity of the plurality of the added first smaller packing size while maintaining the gas and liquid limiting flow capacity of a bed of the second larger packing size absent the smaller first packing size.

Abstract: A checkweighing station includes a weigh platform mounted on a load cell which in turn is mounted on a rotatable shaft so that the entire assembly can be rotated to tilt the platform in one direction for an acceptable weight of a weighed item and in another direction for a rejected weight or weight of a different catgegory. A memory device can determine a trend and make adjustments in a production process.