46results about How to "Reduce atmospheric pressure" patented technology

Disclosed are medical devices having textured surfaces and related methods for texturing. Methods of surface texturing using gas-phase plasma provide medical devices with myriad complex surface morphologies.

The disclosure relates to a solid glass matrix of polysaccharides, monossaccharides or disaccharides in combination with polyols as delivery vehicles for preservation and post gastric administration of a probiotic. The delivery vehicle is capable of releasing the probiotic at their site of action. The present invention further includes methods of making and using the solid glass matrix delivery vehicle of the invention.

An embodiment of an overall approximately rectangular rotary mower blade, affixed to a powered support shaft, where the support shaft rotates the blade tines on a rotational plane parallel to the vegetation to be cut, where the blade employs aerodynamic tines preceding the main cutting edge. Features of the aerodynamic tines improve cutting, mulching, and safety of mower operation.

An in-toilet urine sampling and measurement system is disclosed. One or more toilet sensors trigger volatilization, measurement, and analysis of volatile compounds in a urine sample. Volatile urine compounds may be concentrated, measured, and analyzed by a measurement system attached to a toilet bowl. A volatilizer system may use heat generated from one or more measurement devices to assist in volatilization of the urine sample.

Ag / C crystalline nanocomposite films and a method of forming the films with controllable Ag / C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal / Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.

A holding device for workpieces, is provided. The holding device includes a holder and a suction device. The holder has a chamber, a top panel and a plurality of through holes defined in the top panel. The through holes are in communication with the chamber. The top panel is configured for supporting the workpieces over the respective through holes. The suction device is coupled to the chamber and is configured for pumping out air in the chamber, such that an atmospheric pressure of the chamber is lower than that of an exterior of the chamber, thereby holding the workpieces. A vacuum deposition apparatus using the holding device is also provided.

Methods and devices are provided for using high-density arrays of diverse chemical entities. In preferred embodiments, small volumes of multiple liquids are delivered to multiple reaction sites on a single substrate where the liquids are constrained to localized reaction sites. The substrate need not be cut apart prior to being used for analysis. Accordingly, the area of the substrate on which analysis may be performed is maximized. In many embodiments of the present invention, constraining regions hinder the transport of liquids between adjacent reaction sites.

The invention discloses lubricating agent filling equipment, and relates to the technical field of lubricating agent production. The lubricating agent filling equipment comprises a body shell. A fixing support is fixedly connected to the top of the inner wall of the body shell. The bottom of the left side of the fixing support is fixedly connected with a drive motor. One end of an output shaft ofthe drive motor is fixedly connected with a rotation rod. The left side of the surface of the top end of the rotation rod is fixedly connected with a lifting block. The left side of the lifting blockis rotationally connected with a transmission rod. The bottom end of the transmission rod is fixedly connected with a drawing-pulling piston. According to the lubricating agent filling equipment, a movable plate can be opened under the influence of the barometric pressure during filling, lubricating agent backflow can be prevented when the filling step is finished, dripping and scattering of the lubricating agent during filling are avoided, raw material waste is effectively eradicated, and garbage generated due to stacking is avoided; due to an air releasing hole, air in the filling barrel canbe exhausted, and filling is convenient; and the automatic filling function can be achieved through a spring pipe, the filling error is reduced, and the automation level on a production line is improved.

A substrate laminating apparatus which sticks substrates together in vacuum with high accuracy. The apparatus includes a first chamber into which two substrates are carried; a second chamber in which substrates are stuck together; and a third chamber which delivers a substrate laminate. The pressure level in the first chamber and the third chamber is varied from atmospheric to medium vacuum under control and that in the second chamber is varied from medium vacuum to high vacuum under control. In the second chamber, electrostatic adsorption means which can move up and down picks up an upper substrate and holds it on an upper table.

A specimen collection and delivery apparatus for collecting clinical specimens and delivery of samples thereof to, e.g., microfluidic testing devices for diagnostic analysis is disclosed. The specimen collection and delivery apparatus includes a closure housing for coupling with a sample tube at one end, an open luer for coupling with a complementary luer on a microfluidic device at the other end, and a filter matrix disposed in the interior. The filter matrix is air permeable and liquid impermeable at atmospheric pressure and prevents sample from flowing through the open luer end when coupled to a sample tube containing a specimen. Under vacuum, the liquid sample fraction of the specimen can be drawn through the filter matrix and into the microfluidic testing device through the luer connection for diagnostic analysis.

An integrated system for monitoring conditions of a patient and adjusting treatment for the patient based on comparisons of acquired data and historical data related to the patient includes a central processor, an oxygen concentrator, a level of consciousness monitor and a mobile device. The oxygen concentrator, the level of consciousness monitor and the mobile device are in communication with the central processor. The central processor includes a sleep database having baseline sleep information for a generic patient. The oxygen concentrator is configured to provide a flow of concentrated oxygen to the patient. The level of consciousness monitor is configured to collect data regarding the patient's state of wakefulness, awareness and alertness. The central processor collects data from the oxygen concentrator, the level of consciousness monitor and the mobile device and adjusts the oxygen concentrator based on comparisons of the baseline sleep information and the collected data.

The invention provides flaked fish analogs comprising from about from about 18 to about 25% protein, from about 3 to about 9% fat, and from about 60 to about 85% moisture. The compositions have a realistic fish-like appearance and texture, mostly due to the presence of “flakes” that mimic the flakes of real fish.

Upper and lower housings nip a supporting adhesive tape that is exposed between an outer periphery of a wafer and a ring frame, thereby forming a chamber. Here, the adhesive tape having a larger width than a diameter of the ring frame divides the chamber into the upper and lower housings to form two spaces. Pressure difference occurs between both spaces such that the lower housing has a reduced pressure than the upper housing for joining the adhesive tape to the wafer.

The invention discloses an electroforming device for a superfine pore plate. The electroforming device comprises an electroforming box. The electroforming device is characterized in that the electroforming box is internally provided with a metal plate taken as an anode, and a core model taken as a cathode, and a vacuum air exhausting device is further connected onto the electroforming box. During electroforming, metal cations in electrolyte in the electroforming box obtain electrons which are settled on the core model of the cathode, and meanwhile the anode metal loses the electrons under the action of an electric field to enter the electrolyte, so that the concentration of the metal cations in the electrolyte is balanced, and therefore, the thicker and thicker metal settled layer can be settled on the core model as time delays, and the required thickness can be finally reached. The superfine electroforming environment is sealed and exhausted to a negative pressure condition by the vacuum air exhausting device. The atmospheric pressure of the superfine electroforming environment can be reduced, the hydrogen bubbles within solution can be preferably dissolved out, the probability and the quantity of the generation of the sedimentation defect such as pinholes can be reduced, and the electroforming effect can be improved.

A method and apparatus involving a euthanasia process are provided. The euthanasia process is carried out in a chamber including electric stunning to induce insensibility and reduced atmospheric pressure to induce hypoxia. The described method and apparatus provide a more humane system for euthanizing animals and reducing any negative impacts for people carrying out the process.

The invention relates to a ventilation and heat dissipation system of an apparatus room, which comprises the apparatus room and a single pipe tower. The invention is characterized in that: an air outlet and an air inlet are respectively arranged on the tower wall on the upper end and the lower end of the single pipe tower; the air outlet is arranged on the wall of the apparatus room corresponding with the air inlet, and a ventilating duct is arranged between the air outlet and the air inlet. The ventilation and heat dissipation system has the advantages of lowering the using frequency of an air -conditioning and saving electricity, and can be applied to the heat dissipation for the apparatus room in mobile base stations.

The invention discloses a cable thermal stripping and recycling device, which comprises a steam bin. A pressure reducing valve penetrates through the top of the steam bin. The right side of the pressure reducing valve is fixedly connected with a pressure gauge. The left side of the top of the pressure reducing valve is communicated with a steam heating pipe. A stripping bin is arranged at the topend of the steam heating pipe in a penetrating mode. One end of the steam heating pipe, located inside the stripping bin, is communicated with a heating spiral pipe. The inner wall of the heating spiral pipe is fixedly connected with a cable. The right end of the heating spiral pipe is communicated with a backflow pipe. The right end of the cable penetrates through the stripping bin and extends tothe outside of the stripping bin. The device relates to the technical field of electrical material recovery. According to the cable thermal stripping and recycling device, the insulating layer of thecable can be completely stripped through the spiral and uniform heating process. Therefore, a conductor and the insulating layer are separated efficiently. The pressure reducing valve can reduce theatmospheric pressure inside the steam bin and increase the flow rate of the steam. The steam or the liquid water with a certain heat quantity of heat can be recycled into the steam bin through the backflow pipe. Therefore, the energy consumption is reduced.

The method of raising crushing efficiency of mechanical impact crusher is to seal the crushing chamber of mechanical impact crusher and to pump out partial air from the crushing chamber to air pressure lower than 0.07 MPa. The method can avoid the floating motion of the material particles and the linear motion of material particles increases the friction and crushing of material particles. The said method results in high crushing efficiency, low power consumption and high material recovering rate.

The invention discloses a multipurpose omni-directional adjusting clamping plate. The multipurpose omni-directional adjusting clamping plate comprises a fixing clamp, a gooseneck type universal rod and a data plate, wherein a negative pressure cavity is formed inside the data plate, and vent holes are evenly formed in the surface of the data plate; and an air guide pipe is connected to the centerof the back face of the data plate in an inserted mode, an air extracting pump is fixedly arranged on one side of the back face of the data plate through bolts, and the end, far away from the data plate, of the air guide pipe is fixedly connected with the output end of the air extracting pump through bolts. According to the multipurpose omni-directional adjusting clamping plate, files are fixed tothe front face of the data plate through a data folder, then the air extracting pump is started, and the air extracting pump extracts air inside the negative pressure cavity through the air guide pipe, so that the atmospheric pressure inside the negative pressure cavity is reduced; and air on the surface of the data plate flows into the negative pressure cavity through the vent holes, and then the files on the surface of the data plate are driven to cling to the surface of the data plate, so that corners of the files are prevented from tilting, workers can conveniently watch information on the files, and then the working efficiency of the workers is improved.

The invention discloses a pneumatic lifting car transferring device. The pneumatic lifting car transferring device comprises a one-way valve air inlet (1), an overflow valve (2), universal wheels (3),a shell (4), a fixing buckle (5), a fixing pin (6), a moving end cylindrical roller bearing (7), a cylinder (8), a transverse fixing pin baffle (9), a guiding groove (10), a baffle (11), a hinge (12), a fixing shaft baffle (13), a fixed end cylindrical roller bearing (14) and a top cover (15). Wheels of a car rise by a pneumatic principle, and leave away from the ground, and therefore, the purpose of transferring the car is achieved. By the device, the time and labor are saved, an electric air pump can be started for inflating by a power supply of the car, inflating can also be implemented bya manual inflator, owing to transverse movement, the subjected atmospheric pressure is not high, inflating can be finished by a common inflating device, and the lifting efficiency is high.

The invention discloses a variable wing four-axis aircraft which comprises a fuselage and a pair of wings arranged on the two sides of the fuselage, wherein wing shafts are respectively arranged on front and rear sides of the wings; the wing shafts are clung to the two sides of the wings; propellers are arranged at the front ends of the wing shafts; the wings are hinged on the left and right sides of the top of the fuselage through an electric rotating shaft; a tail wing is arranged on the rear side of the top of the fuselage. In a takeoff stage, the wings and the tail wing are under a folded state and are fused with the fuselage, so that the atmospheric pressure endured by the fuselage at the takeoff moment can be reduced and the energy consumption can be reduced; in a landing stage, the wings and the tail wing are under the state the same as the state in the takeoff stage, the ground effect is reduced and the vertical takeoff and landing can be realized; in a normal flying process, the wings and the tail wing are under an unfolded state, can supply the lifting power for the aircraft and can realize higher energy efficiency ratio; two structures are smartly combined, and higher lifting power of the aircraft is acquired while the atmospheric pressure endured by the fuselage at the takeoff and landing moment is reduced.

The invention provides a photocuring type 3D printing device. The photocuring type 3D printing device comprises a shell, a lifting platform, a driving mechanism and an optical system. Liquid photosensitive resin used for workpiece forming is contained in the shell, and the interior of the shell is a low-air-pressure environment. The lifting platform is arranged in the shell and used for bearing aformed workpiece. The driving mechanism drives the lifting platform to do lifting motion. The optical system is positioned below the shell and can form a light beam pattern through irradiation, so that the layer of photosensitive resin at the bottom in the shell is controllably cured.