149results about How to "Flow restriction" patented technology

A hand-held applicator for applying a cleaning or polishing solution to a surface including a container housing for containing a cleaning or polishing solution, such as cleaning agents, protectants, waxes, soaps, detergents, etc. Moreover, in this applicator, a discharge valve assembly controls the flow of the cleaning or polishing solution from the container housing. A pump assembly is connected to the container housing which increases the pressure within the container housing so as to release a portion of the liquid product through the discharge valve assembly. The pump assembly includes a bellows-like chamber communicating with the container housing by means of an air opening slit at an end thereof extending into the container housing. A pump actuating member is provided which compresses the bellows-like chamber upon manual force applied thereto to thereby open the air opening slit to admit air into the container housing to increase the pressure thereof so as to open the discharge valve assembly and release a portion of the liquid product from the container housing onto the surface. A solution application pad applies the liquid product released through the discharge valve assembly by a cleaning or polishing action thereof upon the surface.

A respiratory treatment device comprising at least one chamber, a chamber inlet configured to receive air into the at least one chamber, at least one chamber outlet configured to permit air to exit the at least one chamber, and a flow path defined between the chamber inlet and the at least one chamber outlet. A restrictor member positioned in the flow path is moveable between a closed position, where a flow of air along the flow path is restricted, and an open position, where the flow of air along the flow path is less restricted. A vane in fluid communication with the flow path is operatively connected to the restrictor member and is configured to reciprocate between a first position and a second position in response to the flow of air along the flow path.

A roasting apparatus for coffee beans comprises a housing and a horizontal drum on the housing rotatable about an axis with an opening on a first end thereof for receiving and discharging beans and a plurality of openings on a second end opposite the first end of size sufficient to pass air and insufficient to pass the beans. The apparatus includes a heater in the housing capable of heating the drum to roast the beans and a fan adapted to move air through the first and second ends of the drum. A pair of doors pivotally mounted on a common hinge between the fan and the drum are movable between a closed position during roasting substantially blocking passage of free flow of air through the drum and an open position permitting free flow of the air once the beans are sufficiently roasted. A chaff collector is secured to the housing at an end opposite the drum first end. The collector has a plurality of openings of size sufficient to pass air and insufficient to pass chaff from the beans. When the beans are sufficiently roasted, the fan moves air through-the opening in the first end of the drum and the open doors and cause chaff to be removed from the roasted beans or other food and carried with the air through the openings in the second end of the drum. The chaff is then collected within the chaff collector as the air passes through the openings therein.

The present invention discloses one kind of nanometer composition heat resisting filtration reducing agent and its preparation process. The nanometer composition filtration reducing agent is synthesized through a reverse addition-fracturing chain transferring (RAFT) process, and has nanometer montmorillonite layer dispersed inside amphiphilic block polymer base. The organic combination between rigid and stable montmorillonite and flexible block polymer makes the nanometer composition filtration reducing agent possess high physical and mechanical performance and high heat stability. It is used as drilling fluid treating agent and has obvious filtration reducing effect at high temperature and high pressure.

The invention provides a cuttable flexible wire which is composed of liquid metal and an elastomer, wherein liquid metal particles are dispersed in the elastomer. The liquid metal material will not flow out after the flexible wire is cut, and can bear stretching, bending and other deformation. When the liquid metal material produces stretching, bending or other deformation, the resistance will not change. The invention further provides a device for large-scale preparation of the cuttable flexible wire, comprising a mixing device, a current detection device, a conductor pipe, a protective layer pipe, and a heating device. The cuttable flexible wire prepared using the device has stable performance and large tensile strain, can be recovered after stretching, and can be cut. The cuttable flexible wire has potential application value in the flexible electronic technology.

Intake air is restricted to provide an intake manifold pressure that is below the pressure of the ambient atmosphere. Fuel is injected into each combustion chamber at a position of between 15° and 45° BTDC to achieve HCCI combustion under idle and light load operating conditions.

An improvement to an A-V dialysis graft construction that includes an elongated length of polymer tubing having an inlet end and an outlet end adapted to be attached to access needles. The improvement comprises a normally reduced diameter intermediate portion, providing a pressure drop from the inlet end of the length of polymer tubing to the outlet end for the purpose of improving flow to the extremity, not utilizing excess cardiac output and minimizing venous stenosis. A first embodiment comprises a gradual converging portion of the lumen followed by a gradual diverging portion. A second embodiment comprises an inflatable, annular stenosis balloon, providing a variable stenosis.

A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.

The invention discloses a display substrate, a manufacturing method of the display substrate and a liquid crystal display device and belongs to the technical field of displaying. The display substrate comprises at least one substrate to be cut, arranged in an array form; the surface of the display substrate is coated with frame sealant along the periphery of the substrate area; a retaining wall for retaining the frame sealant is disposed between every two substrate areas to be cut. By the use of the display substrate, the problems such that a panel is poorly cut due to flowing of the frame sealant are solved.

The invention discloses a display panel, a displayer, a manufacturing method and a liquid crystal medium mixture. The display panel comprises a first substrate, a second substrate opposite to the first substrate, and a liquid crystal layer arranged between the first substrate and the second substrate. A plurality of polymer retaining walls are arranged in the liquid crystal layer and are in contact with the first substrate and the second substrate, and the polymerization direction of polymerizable monomers in the polymer retaining walls is perpendicular to the thickness direction of the polymer retaining walls. According to the display panel, the displayer, the manufacturing method and the liquid crystal medium mixture, the polymer retaining walls are arranged in the liquid crystal layer,therefore, flowing of liquid crystals in the liquid crystal layer is limited, polymerization of the polymerizable monomers in the polymer retaining walls has directionality, the roughness of the edgesof the polymer retaining walls is relieved, pixel edge light leakage is relieved, and the display effect is improved.

The invention discloses a legged robot foot device capable of achieving self-adaption to various terrains. The legged robot foot device mainly comprises a sole structure, an ankle structure and toe structures; the sole structure is used for fixing and connecting other structures of a robot foot, and an inner cavity is a sealed space which is filled with hydraulic oil; the ankle structure is mainly used for completing robot steering and keeping a vertical posture of a robot so as to improve the stability of the robot under complex terrains; the toe structures are the only structures, making direct contact with the ground, of the robot, toe flaps are connected through webs so that movement of stretching and contracting can be completed, the soil fixation effect is achieved, the surfaces of the toe structures are provided with filter pores which can filter out water under toes and are used for improving the supporting environment of the bottom of the foot, and each toe can stretch and retract in the sole so that the robot foot can achieve self-adaption to various terrains. According to the legged robot foot device, the robot can achieve self-adaption to various soft soil environments, the stability of steering and walking can be improved, the supporting environment of the bottom of the robot foot can be improved, and the robot can walk in the complex terrain environment stably and efficiently.

An automatically actuated regulation system for a natural gas pipeline having flow control unit, a vibration sensor, a gas flow meter, a trigger unit, and a microprocessor. The microprocessor actuates the flow control unit when two conditions are met. First, there must be a vibration which surpasses a predetermined threshold. Second, flow in the natural gas pipeline must have increased over the flow rate before the vibration. The system can be configured to store gas usage data and, in one embodiment, transmit the data to another location through the use of a modem or other communication means.

Disclosed is a hydraulic circuit for construction equipment for controlling to selectively supply a hydraulic oil from a hydraulic pump to a hydraulic cylinder for driving a boom. The hydraulic circuit for construction equipment, according to the present invention, comprises: a hydraulic cylinder driven by a hydraulic oil of a hydraulic pump; a direction control valve installed on the oil passage between the hydraulic pump and the hydraulic cylinder; an operating device installed on the oil passage between a pilot pump and the direction control valve; a center by-pass switching valve installed at the most downstream side of a center by-pass passage of the hydraulic pump; a pressure detection sensor that detects the pressure of a hydraulic oil at the large chamber side of the hydraulic cylinder; a jack-up switching valve installed on the oil passage between the operating device and the center by-pass switching valve; and a flow control valve installed in the spool of the direction control valve.

The invention provides a preparation device of a flexible electrode. The preparation device comprises a mixing container, a deposition container, a current detector, a first heater and/or a second heater, wherein a flow pipeline and a valve for closing or opening an inlet end of the pipeline are arranged at the bottom end of the mixing container; a liquid metal and an elastomer are stirred and mixed evenly in the mixing container; a probe detects a mixture until current passes through an ampere meter; and the valve of the pipeline is opened and the mixture flows to the deposition container through the pipeline under the pressure effect and is molded into a block electrode. Compared with the prior art, the preparation device is simple in structure, the electrode can be produced on a large scale and the electrode has the advantages of high deformability, stable resistance and the like.

The invention relates to the technical field of drilling. The invention discloses a high-temperature-resistant filtrate reducer, a preparation method thereof, a water-based drilling fluid and an application of the water-based drilling fluid. The high-temperature-resistant filtrate reducer is formed by the copolymerization of a monomer composition, and the monomer composition comprises dimethyl diallyl ammonium chloride, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, N,N-dimethylacrylamide and p-methylstyrene. The invention also provides the water-based drilling fluid containing the high-temperature-resistant filtrate reducer provided by the invention. When the water-based drilling fluid containing the high-temperature-resistant filtrate reducer is applied to the boring under a deephigh-temperature (220 DEG C) high-mineralization (saturated salt, containing 1.0% of CaCl2) condition, the water-based drilling fluid can show good inhibition, rheology and filter reduction performance.

The invention discloses a sand control completion method for drawing and expanding a sand screen underground and a tool thereof, and is particularly applicable to sand control completion construction of sandy oil gas wells of oil fields. The method comprises the steps of firstly laying a tubular column anchor (1), an expanding sand screen (4) and an inner tube expanding tool (2) in a design position in a well along with a tubular column; applying pressure to the interior of the well so as to ensure that the tubular column anchor (1) is anchored on the tubular column; then enabling the inner tube drawing and expanding tool (2) to move upwards, so as to enable the expanding sand screen (4) to be adhered to the well wall and further complete the sand control completion construction of an oil-gas well. The special tool of the method comprises the tubular column anchor (1), the expanding sand screen (4) and the inner tube drawing and expanding tool (2). As the expanding sand screen (4) is pulled and expanded to be adhered to the wall of the well, the flowing of sand grains is limited, a sand screen is prevented from being flushed and damaged, after the sand screen is drawn and expanded, the completion well is large, the filtering flow effect is good, the yield is high, the implementation of follow-up measures is facilitated by virtue of the large inner diameter, and compared with a hydraulic taperexpanding screen pipe pushing technology, the success rate of the method is higher.

The invention relates to a method of drying a non-metallic coating on a steel band (1), whereby the steel band (1) is conveyed into a vertical drying furnace (3) with relatively cold walls. According to the invention, hot air is then injected into the upper part (10a) and the lower part (10b) of the furnace in order to prevent the condensation of vapours on the walls of the furnace, and the injected air is subsequently drawn off (4). A dynamic brake is produced by injecting (13a, 13b) hot air between the lower part and the upper part of the furnace at a distance from the inlet and the outlet thereof and by creating an overpressure condition in the tunnel of the drying furnace, such as to limit the entry of cold dead air and the chimney effect in the vertical furnace.

The invention discloses a method for improving the thickness of a film prepared in the spincoating. Raised steps 5 Mu m to 500 Mu m high are formed on a coated baseplate through spincoating photoresist or sticking adhesive tapes, thus forming a closed frame. A solution is dropped in the area enclosed by the frame, and a film is prepared through the spincoating. By adopting the method, the thickness of the spincoated film can be significantly improved. The method is applicable for a plurality of fields needing preparation of thick films, and can reduce the frequency of repeated spincoating. The method has the advantages of simple process, strong maneuverability and large application value.

The invention relates to a damping and de-noising method for an amorphous alloy transformer, and after the process of window close of an iron core at the bottom layer is finished according to a traditional production process of an amorphous transformer, the method comprises the following steps of: (1) preparing enough large butyronitrile oil-resistant rubber gaskets; (2) cutting the butyronitrile oil-resistant rubber gaskets according to the outer contour of an upper surface of an overlap structure of the iron core at the bottom layer; (3) smearing silicone sealant on the outer contour of the upper surface of the overlap structure of the iron core at the bottom layer; (4) taking down the cut butyronitrile oil-resistant rubber gaskets and covering on a region on the iron core at the bottom layer which is coated with the silicone sealant; and (5) smearing the silicone sealant on the upper surface of the rubber gaskets, and after the steps are finished, the production of the iron core on the upper layer is finished according to the traditional amorphous iron core assembly technology. Compared with the prior art, the method improves the running safety and reliability of the amorphous alloy transformer obviously and reduces the noise of the amorphous alloy transformer.

The invention discloses an acupuncture point autogenous vaccine generator which comprises an acupuncture point warming member main body and an acupuncture point warming body cover, wherein the acupuncture point warming member main body is hollow and is a cylinder controlled by a regulating member for heating; the top inside the cylinder body is provided with a lamp tube capable of pulsating to send out spectrums from ultraviolet rays to infrared rays; an optical filter conversion device is arranged below the lamp tube; a medicine storage chamber in which medicine liquid can be injected to be stored in the bottom of the cylinder body is arranged under the optical filter conversion device; the bottom end of the cylinder body is provided with a thermocouple controlled by a temperature control element; and the acupuncture point warming body cover is provided with an elastic cord used for being fixed with a human body part and attaching to a pressure meter. The acupuncture point autogenous vaccine generator has the effects of direct contact moxibustion and medicine moxibustion; through pulsation heating and reaction to the medicine liquid, by limiting flowing of lymph under an acupuncture point, a pathogen is more effectively inactivated without cicatrices, and inactivated or weakened pathogens are like the vaccine, and then the lymph and macrophage and lymphocyte can kill the pathogen.