Abstract: One or more magnetrons may be used directly underneath the foods to be cooked/heated. However, a thin layer of nonconductor, such as a glass is used to physically isolate the magnetrons from the foods while permitting the microwave energy to transmit through the nonconductor. A wave-guide may be used to transmit the microwave energy from one or more magnetrons to a surface adjacent to the food products such that the magnetrons are placed a distance away from the food products. A nonconductor is also used to isolate the wave-guide from the foods.

Abstract: Essence of the invention is a: a liquid, whose saturated vapour pressure is not less than the pressure at the top of a rectification column, is delivered into the nozzle of a liquid-gas jet apparatus as a motive liquid; the pressure maintained in a separator represents from 1.1 to 160 times the pressure of a vapor phase at the inlet of the liquid-gas jet apparatus; condensation of easy-condensable components of the vapor phase in the motive liquid and forming of a liquid-vapor mixture take place after mixing of the vapor phase with the motive liquid; the liquid-vapor mixture is separated in the separator into a compressed gaseous component and a liquid medium. The introduced method results in an increase in efficiency of a pumping-ejector system for the distillation of a liquid product.

Abstract: Each of a liquid gas ejector's mixing chambers has a cylindrical inlet section, a convergent intermediate section and a cylindrical outlet section. The ratio of the cross-sectional area of the inlet cylindrical section of the mixing chamber to the cross-sectional area of the outlet cylindrical section of the mixing chamber is from 0.5 to 50.0; the length of the inlet cylindrical section of the mixing chamber, the length of the intermediate convergent section of the mixing chamber and the length of the outlet cylindrical section of the mixing chamber represent respectively from 0.05 to 36 times, from 0.02 to 50 times and from 0.5 to 220 times the diameter of the outlet cylindrical section of the mixing chamber. A liquid-gas ejector having the introduced design and geometrical parameters pertaining to its mixing chambers exhibits an increase in efficiency.

Abstract: The invention pertains to the field of the petrochemical industry. The invention essentially relates to a system and method that includes feeding of a liquid having molecular weight more than 100 (in atomic mass units) into a nozzle of an ejector as a motive liquid, and delivery of a mixed medium from the ejector into a shaped reservoir, where flow velocity is reduced and static pressure is boosted. The outlet of the ejector is connected to the inlet of the shaped reservoir, the inlet of a separator is connected to the outlet of the shaped reservoir. The introduced method and the system for its embodiment ensure a more efficient operation.

Abstract: A commercial and institutional kitchen retrofit system for 1. the automatic daily cleaning of commercial kitchen exhaust hoods and flues, 2. a low pressure, low volume, recirculating cleaning system designed for the removal of oily residue from hard surfaces and the accelerated bioremediation of the resulting collective hydrocarbon waste, 3. the collection and elimination of roof-top grease accumulations, 4. the systematic on site incubation and enhanced propagation of cultured, hydrocarbon specific, bacterial microorganisms in an automatically mixed aqueous solution containing PH neutral oxidizers and hydrocarbon base emulsifiers altogether, producing a regenerative, recyclable cleaning solution specifically developed for use in 5.

Abstract: The present invention pertains to the field of chemical and oil refining technology. In particular, the invention relates to the vacuum distillation of liquid mixtures and relates directly to the separation of liquid mixtures. The main field of application of the invention is rectification of oil stock in the petrochemical industry. The objective of this invention is to reduce power consumption required for generating a vacuum in mass-transfer columns while improving the quality of target products, reducing environmental pollution and increasing the efficiency of separation. According to the invention, a vacuum in a mass transfer column is generated due to condensation of outgoing vapors and evacuation of non-condensable gas-vapors by a vacuum-producing system, which is connected to a vacuum pump and composed of an absorber, a phase separator and a cooler, connected in series.

Abstract: The invention relates to the field of jet technology. The surface area of the minimal cross-section of the mixing chamber represents from about 1.1 to about 7.98 times that of the minimal cross-section of the active liquid nozzle. A liquid-gas jet apparatus with the above described correlation of sizes has a higher efficiency due to reduced energy losses.

Abstract: The invention pertains to the field of jet technology and relates to an operating process which essentially includes feeding of a gas-liquid flow from an ejector into a chamber for supersonic flow conversion, where the gas-liquid flow is exposed to an abrupt expansion and, because of a reduction to the gas-liquid flow's density, a sonic or supersonic flow regime is provided. Further, the gas-liquid flow is slowed down by a pressure jump. The invention also relates to a device for realizing this process which essentially includes a pumping-ejector unit furnished with a chamber for supersonic flow conversion. The inlet of the chamber is connected to the ejector's outlet, the chamber's outlet is connected to a separator. The chamber for supersonic flow conversion defines a shaped cavity, diverging stepwise in the flow direction. The described operating process and related pumping-ejector unit ensures more reliable operation.

Abstract: The invention pertains to the field of jet technology and essentially relates to a nozzle for discharge of an ejecting liquid medium. The nozzle constitutes a collection of shaped channels. The central channel is coaxial to the mixing chamber, the other channels are uniformly allocated around and encircle the central channel. The total surface area of the outlet cross-section of the nozzle is determined from the following formula: S=S&mgr;[1+4{square root over ((SKC+L /S&mgr;+L ))}3], where S—the total cross-sectional area of the outlet section of the nozzle; S&mgr;—cross-sectional area of the outlet section of the nozzle's central channel; SKC—cross-sectional area of the minimal section of the mixing chamber. A liquid-gas jet apparatus with the above-mentioned characteristics has an improved operational reliability.

Abstract: The invention relates to the field of jet technology. A gas-liquid mixture is fed from a jet apparatus into a jet converter where the flow of the gas-liquid mixture first undergoes expansion and thus is transformed into a supersonic gas-liquid flow. This supersonic gas-liquid flow is then decelerated in a shaped flow-through channel section t of the converter. A pressure jump is generated there and partial transformation of kinetic energy of the flow into potential energy of pressure takes place. In order to implement this operational process, the system is furnished with a jet converter, which includes an expansion chamber and a shaped flow-through section, the inlet of the expansion chamber is connected to the jet apparatus outlet, and the outlet of the shaped flow-through section is connected to a separator.

Abstract: The present invention pertains to the field of jet technology and essentially relates to a pumping-ejection apparatus including a vacuum-producing device. Further, the apparatus is equipped with a condenser, a jet pump and an additional vacuum-producing device which has a boosting liquid-gas ejector, an outlet separator, an additional pump and an additional condenser. The evacuated medium inlet of the jet pump is connected to the separator, the outlet of the jet pump is connected to the suction side of the pump, the inlet of the jet pump for motive medium is connected to the discharge side of the pump. The inlet of the condenser is connected to the ejector's outlet, outlet of the condenser is connected to the separator. The gas inlet of the boosting ejector is connected to the pipe for discharge of compressed gas, the outlet of the boosting ejector is connected to the inlet of the additional condenser.

Abstract: The invention relates to the field of jet technology, primarily to apparatus for evacuation and gaseous mediums' compression. Apparatus is furnished by liquid-gas ejector, pump, separator and condenser. Ejector contains receiving chamber, which has a space in the zone of inlet part of mixing chamber for collecting of outlying part of liquid working medium's flow and its discharge through the drain pipe, which can be connected to separator or to the suction side of pump. The introduced design of installation allows to increase its efficiency factor.

Abstract: The present invention pertains to the field of jet technology and essentially relates to a liquid-gas ejector, including at least one nozzle and a mixing chamber corresponding to the nozzle, wherein the mixing chamber has a length of between 200 cm and 1400 cm while the operational pressure of a motive liquid at the nozzle's inlet is within the range from 6 atm (abs) to 240 atm (abs).

Abstract: The invention pertains to the field of jet technology and essentially relates to a multi-nozzle jet apparatus. Each nozzle of the apparatus is furnished with a filter element installed at the inlet side of the nozzle. The filter element constitutes a sleeve with longitudinal apertures in its side wall, the total surface area of the apertures in each filter element exceeds more than twice the surface area of the cross-section of the throat of the nozzle, the width of each aperture in the filter element is at least two times smaller than the shortest distance between the opposite walls in the cross-section of the nozzle in the zone of the throat of the nozzle. Each mixing chamber is furnished with an inlet duct located in the receiving chamber, the height of each inlet duct represents from 0.05 to 86 times its diameter. This invention provides improved effectiveness and reliability of the multi-nozzle liquid-gas jet apparatus.

Abstract: The invention pertains to the field of jet technology and essentially relates to a method of operation including discharge of a motive liquid from a nozzle of a liquid-gas ejector, mixing of the motive liquid with an evacuated gaseous medium and simultaneous compression of the gaseous medium, collecting of the sprayed part of the motive liquid flow with further discharge of this collected liquid from the ejector by gravity or using a pumping action. This operational method for a liquid-gas ejector provides an increased efficiency factor for the ejector.

Abstract: An image/message display device includes a ceiling fan suspended from the ceiling. A controller for the display is mounted on the ceiling fan and includes hall effect sensors for determining the rotational speed of the fan. LED panels are mounted on each of the blades for creating the image/message as the ceiling fan turns. Aerodynamic covers are placed over the LED panels. A dark, non-reflective background may be suspended behind the LED panels to enhance the view of the image/display.

Abstract: The Chest-positioner/pad Cardio Pulmonary Resuscitation System (CCPRS) provides improved resuscitation during one-person or two-person CPR. The simple, compact, portable and cost-effective system provides for manual, mechanical or electrical driven external chest compressions via a socket connection to a chest-positioner/pad unit. The chest-positioner/pad unit provides greater control of compression positioning providing adequate and reproducible chest compressions while preventing rib fractures and damage to vital internal organs. A module gives providers feedback to enable a provider to apply an appropriate compressive force in an appropriate direction, recurringly under emergency conditions. The present invention also provides improved blood circulation, oxygenation and gas exchange by expanding the chest past its normal relaxation point during diastole.

Abstract: The present invention relates to the field of jet technology.According to the invention the ration between the surface area of the minimal cross-section of the mixing chamber and the surface area of the minimal cross-section of the active liquid nozzle is more than 800 but less than 1600.A jet apparatus with the stated above correlation of sizes has an increased efficiency factor due to reduced energy losses.

Abstract: A system for moving fluids, solids and semisolids through a conduit. The system includes a grounding mechanism, a way to automatically monitor the grounding mechanism, a way to automatically determine whether the grounding mechanism is effective and a way to output monitoring information.

Abstract: The invention pertains to the field of fluidics and jet technology. The essence of the invention: is a vacuum-producing device composed of a liquid-gas jet apparatus, a separator and a pump, is furnished with a jet pump, so that the gas inlet of the liquid-gas jet apparatus is connected to a pipeline for discharge of vapors from a rectification column, the liquid inlet of the liquid-gas jet apparatus is connected to the discharge side of the pump, the outlet of the liquid-gas jet apparatus is connected to the separator, the passive medium inlet of the jet pump is connected to the separator, the outlet of the jet pump is connected to the suction side of the pump, the active nozzle of the jet pump is connected to a pipeline for export of a liquid fraction from the rectification column. This vacuum system results in increased efficiency and productivity.