188results about How to "Save equipment" patented technology

A signal distribution system for distributing signals, such as for outdoor wireless networks, comprises a number of remote hubs, each of which can direct wireless signals to a number of antennas. The antennas are used to provide wireless service to the service users, such as mobile units, within their geographic coverage area. The remote hubs are connected to main hubs, which are usually located centrally. Each main hub can support a number of remote hubs. The main hubs are connected to a number of base stations (again usually located centrally) in a flexible and re-configurable manner using a switch matrix. Some remote hubs may also include switched matrices for a further level of signal routing.

A segmented fluid end is provided, the fluid end comprising a plurality of fluid end segments, each comprising a plunger manifold, intake head, and pressure head. In preferred embodiments, the fluid end comprises three fluid end segments (“triplex”) or five fluid end segments (“quint”). The plunger manifold comprises first and second mounting surfaces, each comprising a fluid opening. An intake head mounting flange is adapted to be removably coupled to the first mounting surface and a pressure head mounting flange is adapted to be removably coupled to the second mounting surface. The plunger manifold comprises a plunger mounting member comprising a plunger opening adapted to receive a plunger. The pressure heads are adapted for cooperative coupling to adjacent pressure heads, such that, when coupled, the pressure heads are in fluid communication with one another. Methods of replacing the fluid end segments, plunger manifolds, pressure heads, and intake heads are provided.

Beginning with a smooth ground aluminum blank with a relatively thin layer of leveled Ni—P, circumferential electropolishing/texturing is carried out to achieve a smooth oriented surface. A conductive slurry is provided between the disc and a porous texturing tape which is in contact with a conducting plate or equivalent conductor. The disc serves as the anode, and the conducting plate as the cathode, while the slurry, being conductive, functions as an electrolyte. In the presence of current, a reverse electroplating occurs so that the Ni—P dissolves to form Ni²⁺, or nickel ions which are carried away by the conductive slurry. The conductive slurry further supports or carries therein abrasive material so that by moving the porous texturing tape past the disc surface, the texturing tape picks up the abrasive material in the slurry and simultaneously with the reverse electroplating, provides the desired mechanical abrasion to achieve texturing of the disc surface. The abrasive material comprises diamond particles. The circumferential electropolishing/texturing polish is achieved by spinning the disc while applying the mechanical-chemical action through the slurry system to the disc surface with electric current passing through the electrically conducting interface during processing.

An exercise machine adapted for training watersports athletes has a pair of spaced-apart vertical columns each with hollow tubular body with a weighted plunger attached to a cable for vertical reciprocation while a user performs power and return stroke movements on an instrument attached to the other end of the cable. The plunger is hydraulically coupled to an air channel fed by an air-through valve sized to control air movement into the air channel by the rising plunger during a power stroke to approximate water resistance to an oar, paddle or arm in the water. The air channel has a release opening for releasing air balanced against the weight of the falling plunger to approximate lifting an oar, paddle, or arm out of the water on a return stroke. The exercise machine can be used to practice a wide range of watersports training exercises for swimming, paddleboarding, canoe paddling, rowing, etc.

The invention discloses a desktop portable sight line tracking method and apparatus. The method comprises the steps of clicking a preset calibration point on a screen by a user to perform calibration, and capturing a facial image of the user by a system; performing pupil localization and Purkinje hot spot localization on the captured facial image of the user, extracting an eigenvector, and standardizing the eigenvector; obtaining a mapping relationship through calibration point data, and substituting the standardized eigenvector of each frame of image into the mapping relationship to obtain actual fixation point coordinates; and extracting fixation point coordinates in all image frames to realize sight line tracking. According to the method and apparatus, an ellipse fitting-based improvement method is proposed for accurately locating the pupil; two Purkinje hot spots are simultaneously located through a clustering-based method; and the method and apparatus have the advantages of quickness and accuracy for localization.

A dental dog chew roll is cut from a flavored and colored hide piece. The hide pieced is rolled to form into a cylindrical body with two ends, with strips of the hide extending from the cylindrical body. Optionally, cuts are made in the body to provide more surface area. Preferably, the hide piece is made from a large animal hide that is cleaned, infused with flavor and dried.

Simultaneous slicing and washing of relatively firm raw vegetable or fruit products is accomplished in a vat of water into which a slicer apparatus is positioned such that the slices are formed and discharge directly into the water An inclined takeout conveyor serves to receive the slices and remove them from the water. A circulating water current and fluid jets urge the slices to disperse onto the conveyor. A spray of water or air blast removes residual vegetable matter from the slice surfaces before leaving the takeout conveyor for further processing. Slicing and washing a vegetable in a flume volute where the slices are dispersed onto a takeout conveyor is disclosed where the water medium is collected in a tub and recycled back to flow in the flume to a level that covers the slicer's operative parts. The apparatus may be used for simultaneous slicing and cooling of raw vegetables where hot cooling oil is maintained in the system and recycled for reheating.

A process for preparing low-sulfur low-arylhydrocarbon clean diesel oil includes such steps as hydrorefining/hydrocracking raw hydrocarbon to obtain intermediate fraction oil, catalytic stripping to separate light fraction from heavy fraction, hydrorefining the light fraction to remove residual S and impurities, and catalytic stripping of heavy fraction for removing sulfure and arylhydrocarbon to obtain final product. Its advantage is cyclic use of two reactino segments for low cost.

A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising C₄ olefins; and (b) reacting the isomerized stream with ethylene in the presence of a metathesis catalyst to form a metathesis product stream comprising propylene, C₄ olefins, and C₅+ olefins. The metathesis reaction pressure is equal to or lower than that of the skeletal isomerization.

A system and process that incorporates hardware and software as elements to be combined with procedures and processes to obtain, format, store, combine, control, display, record, and visualize dynamic scenarios by interacting with accurate, realistic models and actual events within, on, and above a three-dimensional surface to be observed or modeled. The present invention software and process is capable of displaying extremely high resolution terrain models and imagery in real time over the entire surface of the planet, as well as a large number of moving entities and their associated graphical models. These features, combined with a network application programming interface (API), make the present invention suitable for flight simulation out-the-window displays, command and control scenarios, and mission review or rehearsal.

The invention mainly relates to a method for preparing a protein feed by fermentation on straw and cake using aerobic mixed bacteria. The method for preparing a protein feed by fermentation on straw and cake using aerobic mixed bacteria is mainly characterized by comprising the following steps of: uniformly stirring straw, cake, wheat bran and corn flour, and enabling the water content thereof toachieve 50-60%; adding ammonium sulphate having an amount of 0.5-4% relative to the total amount of dry materials and urea having an amount of 0.5-3% relative to the total amount of dry materials; adjusting pH to 5.5-6.5 by 1% lime water; joining the raw materials in bacterial solution having an amount of 8-12% relative to the total amount of dry materials, obtained by mixing geotrichum candidum,lactic acid bacteria and bacillus licheniformis, and having a ratio by weight of 50-60% of geotrichum candidum to 30-35% of lactic acid bacteria to 5-10% of bacillus licheniformis; and fermenting for18-24 hours in a ventilation condition at a temperature of 28-32 DEG C, so as to prepare the fermented protein feed. The method for preparing a protein feed by fermentation on straw and cake using aerobic mixed bacteria disclosed by the invention utilizes modern bio-technology, optimizes the best combined bacteria, has simple and convenient production process, saves equipments and energies, and reduces the needed investment.

A short-flow technology for manufacturing the heavy rails with 50 m in length includes such steps as refining molten steel, conticasting, step heating, shaping rolling, fine rolling, sawing by needed size, prebending-cooling, straightening, and inspection. Its advantages are short technological flow, high quality of product and low cost.

An identification device establishes a relative hierarchy of associated containers as logistical units, providing multi-layer visibility of nested and adjacent containers. The relative hierarchy comprises lower-layer containers and upper-layer containers relative to the identification device. An integrated reader device reads heterogeneous tag types. This allows disparate tag types simultaneously using a single device.

A lead-free bearing includes a bronze matrix powder metal bearing layer bonded to a steel backing a fully densified. The bearing material has about 8 to 12% by weight tin, about 1 to less than 5% by weight bismuth, and about 0.03 to 0.08% by weight phosphorus, with the balance being copper. The tin is soluable in the copper to yield the bronze matrix, and the bismuth exists as finely dispersed, undissolved islands through the matrix. Such bearings exhibit physical properties comparable to or better than those of traditional bronze-lead bearings and improved wear in seizure properties.

A method and apparatus is disclosed for starting and stopping a generator set that supplies power to a refrigeration system. An ambient temperature sensor is used rather than an in-box sensor in addition to a programmed microprocessor to regulate the operation of the generator. Unnecessary use of the generator is, thereby, limited which contributes to cost, energy and equipment savings and a cleaner environment while ensuring the required in-box temperature is maintained and the quality of perishable goods are not compromised.

The invention belongs to the field of mineral processing technologies and particularly discloses a separation technology of specularite after reduction roasting. The separation technology relates to a specularite reduction roasting system and is characterized in that the specularite after reduction roasting and water quenching is fed into a three-section stage grinding stage separation process of a magnetic separation system and is subjected to roughing flotation one time, fine flotation one time and scavenging operation four times, the final iron ore concentrate grade is 60%-62%, and the recovery rate is 80%-85%. Iron ore concentrate products meet the requirement of sintering process, in addition, the recovery rate is high, and therefore economic benefits of separation plants are greatly increased.

A carried TiO2 catalyst used for synthesizing the phenyl oxalate used to prepare diphenyl carbonate (DPC) by ester exchange is prepared through preparing the dipping liquid, pretreating carrier, mixing it with said dipping liquid, hydrolyzing, drying and calcining. It has high activity and no pollution.

The invention discloses a direct steel making technique by reducing iron ore with gas, comprising: firstly, adding iron ore and prereducing mineral powder into an iron slag bath, dissolving the iron ore or the prereducing mineral powder into the slag, blowing reducing gas into the slag layer, reducing the slag containing FeO, and obtaining molten steel with carbon content less than 1.3%. CO generated in the reduction reaction is mainly used for secondary combustion to compensate heat energy needed by the reduction reaction, and the exhaust gas is used for prewarming and prereducing (the iron mineral is prereduced in very weak reducing atmosphere). The technique fully utilizes the features that the reducing gas will not carburize and siliconize the molten steel, and implements the production of molten steel from iron mineral only by one direct steel-smelting furnace. The technique of the invention has advantages of high yield, low energy consumption per ton steel, save of equipment andconstruction investment, sufficient simplification of physical distribution, and the technique avoids temperature loss of the molten iron in transport process, and easily implements continuous production and automation control.

The invention belongs to the technical field of air conditioners, and discloses a three-pipe system multifunctional multi-connected air conditioner system and a control method thereof. The system comprises a compressor, a condenser, a machine room evaporator and indoor evaporators. The first end of the condenser communicates with an inlet and an outlet of the compressor through two branches. The first end of the machine room evaporator communicates with the inlet of the compressor, and a second throttling device is arranged at the first end of the machine room evaporator. First throttling devices are arranged at the second ends of the indoor evaporators and the second end of the machine room evaporator. The second ends of the indoor evaporators, the second end of the machine room evaporator and the second end of the condenser communicate with one another. According to the three-pipe system multifunctional multi-connected air conditioner system and the control method thereof, a many-online machine and a machine room air conditioner are coupled with each other and can independently work, the problems about small-load running, lubricating, oil returning, frosting and defrosting, starting and stopping and the like of the many-online machine can be solved, waste heat of a machine room is recycled, space is saved, and equipment cost is reduced; and due to the second throttling devices, the machine room evaporator and the indoor evaporators have different evaporation temperatures, and the refrigerating effect of the machine room evaporator is guaranteed.

The present invention provides a steam methane reforming process and system utilizing an integrated steam system having both high pressure and low pressure steam circuits. According to this invention, substantially the entire stream of treated boiler feed water leaving the deaerator is pressurized and sent to the boiler feed water heater at elevated pressures. The resulting high pressure heated boiler feed water is split with a portion used as the feed to make low pressure steam and the balance is sent to the high pressure steam circuit.

Provided is an apparatus, system, method of use, and method of manufacturing said apparatus, for securing an object having an irregular outer contour, including those objects having a discontinuous contour, in a standard fixture. While secured in the standard fixture modified as in a preferred embodiment of the present invention, a secured object can easily be accessed at any point as pre-determined by the user.

The invention discloses a continuous steel making process for iron ore, which comprises the following steps: by adopting a direct carbon reduction mode of liquid iron oxide, adding the iron ore or pre-reduced ore powder into slag iron bath in advance, dissolving the iron ore or the pre-reduced ore powder to form slag, then using carbon to quickly reduce the liquid iron oxide to obtain liquid iron,next blowing oxygen at the other end of a furnace to remove the carbon so as to obtain molten steel, namely realizing iron mineral addition and molten steel production in the same furnace. CO produced in the reduction reaction is mainly used for secondary combustion to compensate the heat required by the reduction reaction, and the waste gas is used for pre-heating and pre-reducing (the iron mineral can be pre-reduced in weak reducing atmosphere). The process makes full use of characteristic of high direct carbon reduction speed of the liquid iron oxide, has high production rate and low ton steel-carbon consumption, saves equipment and capital construction investment, fully simplifies material flow, avoids temperature loss of the liquid iron during transportation, and is easy to realize continuous production and automatic control.