551 results about "Pressure units" patented technology

A combination pressurized airflow and thermal cutting tool constructed as a dual-use thermal airflow tool for directed heating and drying of a specific area in surgical procedures, such as, by way of example, in eye cataract surgery where it is primarily used for needs related to the operation of a thermal cutting tool. The thermal airflow tool comprises a probe having an elongated, hollow body adapted to provide electrical power to a burning ring formed at a distal end thereof, and an air channel for conducting pressurized airflow to the distal end of the probe, with at least two apertures radially disposed at the distal end of the probe. The thermal airflow tool is in physical and electrical connection with an air pressure unit and thermal power unit, respectively, for directing and concentrating at least one of the pressurized airflow and heat at the distal end of the thermal airflow tool onto a surgical area when electrical power is applied to the thermal airflow tool.

A method and apparatus for the prevention of deep vein thrombosis (DVT), pulmonary embolism (PE), lower extremity edema, and other associated medical conditions by adjusting the temperature of the muscles of a foot or a leg, and / or applying vacuum or negative pressure to increase blood flow. A human extremity such as a leg is exposed to a negative pressure environment and / or a thermally controlled environment within a medical device. In one aspect, the device is portable. A thermal exchange unit and, optionally, a vacuum or negative pressure unit, are provided to increase blood flow and vasodilation. The device can be programmed by a controller in a manner to stimulate the muscles of the extremity to reduce pooling of blood therein.

A pressure sensing catheter having a proximal end and a distal end. The proximate end includes one or more leur fittings contiguous with one or more lumens disposed within the catheter, a connector coupled to a signal lead which spans the length of the pressure sensing catheter and a pressure transducer coupled at about a distal end of the pressure sensing catheter. One or more apertures are provided at about the distal end of the pressure sensing catheter to allow infusion of fluids and / or withdrawal of fluid samples contemporaneous with pressure monitoring within a blood vessel. Signals sent from the pressure transducer are converted into vascular pressure units by an electronic monitor coupled to the signal lead connector.

The invention discloses an adsorption-desorption-seepage experiment system for loaded coal containing gas under the condition of varying temperatures. The experiment system comprises a tank body used for holding constant-temperature water bath. A triaxial pressure chamber is arranged in the tank body; a coal chamber is arranged in the triaxial pressure chamber; a coal sample is installed in the coal chamber; a foil gauge is adhered onto the coal sample and is connected with a dynamic strain meter; one end of the coal chamber is provided with an opening, and a pressure head is mounted in the opening and connected with a pressure unit; the coal chamber is communicated with a vacuum pipeline and a high pressure gas-transmission pipeline; and a confining pressure pipeline used for conveying hydraulic oil is communicated with a cavity between the coal chamber and the triaxial pressure chamber. The adsorption-desorption-seepage experiment system for loaded coal containing gas under the condition of varying temperatures in the invention has the advantages of a simple structure, convenient operation, reasonable design, high experiment precision and a low price.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a circular, extended configuration, allowing a capsulotomy by applying an electrical pulse to the burning element. Optionally, predefined points of weakness allow removal of the tool should breakage occur during surgery.

The invention relates to a high-temperature and high-pressure plugging / sticking preventing simulation evaluation device and method. The device comprises a well drilling liquid pressure control unit, a liquid storage unit, a stratum model, a plugging liquid temperature control unit and a confining pressure unit. The stratum model is provided with a crack simulating stratum forms, and a pressure sensor is distributed on the crack. The pressure and the temperature of plugging liquid entering the stratum model and pressure applied to the stratum model are controlled, pressure values of different depths of the crack are measured through the pressure sensor, and flow of the plugging liquid is measured according to a weighing method. The high-temperature and high-pressure plugging / sticking preventing simulation evaluation device and method can evaluate the plugging effect of different plugging materials and plugging slurry under the same condition and provide scientific research methods for the research of plugging well leakage and extrusion theories, the preparation of plugging agents which are strong in staying performance, forming of process technologies of preventing the plugging agents from sticking backwards, the building of laboratory plugging simulation evaluation method standards and the like.

The present invention relates to a device capable of utilizing the outside pressure to collect compressed air. The device comprises a pressure unit, a driver, an air cylinder, a pressure storage unit and a resetter; wherein, the pressure unit, which is mounted on the upper surface of a foundation pit arranged on a road surface, comprises a pressure plate, one end of which is hinged with the foundation pit and the other end of which is a free end; the driver, which is mounted on the lower surface of the pressure plate, comprises a rack, which is movably connected with the pressure plate and engaged with a gear; a crankshaft is mounted on the gear; a piston rod of the air cylinder is hinged with the crankshaft; the air cylinder is communicated with the pressure storage unit, which is provided with a pressure meter; and the resetter is mounted on the lower surface of the free end of the pressure plate. The device does not generate any pollution and can recover the energy wasted by a heavy object to the max, thus achieving the purpose of turning the waste into a valuable. Moreover, the device also has the advantages of simple structure, reasonable design, little investment and cost, high conversion efficiency and easy promotion.

A fusing device includes a pressure unit, a belt unit to rotate in outer contact with the pressure unit, a nip forming unit to form a nip over a contact portion between the pressure unit and the belt unit, a heating unit to heat the nip forming unit and the belt unit, and a support unit to press and support the nip forming unit constantly and having a plurality of heat transmission portions defined in a parallelogrammic shape of an oblique direction with respect to a traveling direction of the belt unit.

A mobile phone including a perfume spraying apparatus, the perfume spraying apparatus including a perfume storage unit capable of storing at least one perfume type and a perfume spraying unit, wherein the perfume spraying unit includes a perfume chamber coupled to the perfume storage unit by a perfume flow path, a pressure unit to pressurize the perfume chamber, and a nozzle to spray perfume outside the mobile phone. The mobile phone may include a control unit to instruct the perfume spraying apparatus to spray perfume when a button of the mobile phone is pushed and / or when the mobile phone is called and may change a type or amount of perfume sprayed according to an increase or decrease in a user's voice volume, according to a caller, according to a user customization and / or according to a noise change in a user's surroundings.

A spindle used in an ultrasonic machine for transmitting vibration to a working tool of the ultrasonic machine is disclosed. The spindle includes a main body, a rotor disposed in the main body, an elastic clamping unit disposed in the rotor, a vibrating unit having one end thereof connected to the inner wall of the rotor while the other end connected to the elastic clamping unit, and a pre-pressure unit penetrating the rotor and one end thereof connected to the elastic clamping unit to provide the elastic clamping unit with rigidity against the rotor, thereby making the elastic clamping unit provide pre-pressure to the vibrating unit which further provides the elastic clamping unit with vibration against the rotor. The present invention further provides a flexible hinge for the spindle.

A printed circuit board machining apparatus includes a spindle that holds a tool for machining a printed circuit board and a pressure unit for pressing the printed circuit board to a table in machining the printed circuit board. The pressure unit includes a pressure foot movable up an down along the spindle, a rotating member having a plurality of pressure pieces through which a through hole for passing the tool is formed and provided so as to select one among the plurality of pressure pieces, a motor for moving the rotating member, cylinders and electromagnetic valves for moving the pressure foot up and down and a control section for controlling the cylinders and electromagnetic valves. The control section rotates the motor so as to select the pressure piece and controls the cylinders and the electromagnetic valves to change force for pressing the printed circuit board.

During regenerative coordinate braking control, a target brake force is defined by eliminating influences of brake system component tolerances to achieve a comfortable brake feel and secure regenerative energy. A brake control system includes a master cylinder, wheel cylinders, a VDC brake fluid pressure unit and a motor controller. In response to a brake pedal operation by a driver, a brake pedal stroke position is detected at which a pressure in a master cylinder actually begins to be generated. A target deceleration characteristic is adjusted from a theoretical characteristic so that the target deceleration equals a maximum value of an add-on brake force (i.e., the regenerative brake gap) at the detected brake pedal stroke position.

A method for producing a solar cell module is disclosed in which, in a step of bonding a tab wire to a given solar cell via an electrically conductive adhesive film, it is possible to prevent that the connection strength of the electrically conductive adhesive film to another solar cell to be connected to the tab wire is lowered. In the method for producing a solar cell module, a front surface electrode (11) of a given solar cell (2) and a reverse surface electrode (13) of another solar cell (2) are interconnected by a tab wire (3) affixed to the front surface electrode (11) and the reverse surface electrode (13) via thermally curable electrically conductive adhesive films (15). The method includes a placing step of placing the electrically conductive adhesive film (15) and the tab wire (3) on top of the front surface electrode (11) and the reverse surface electrode (13), and a thermal pressuring step of pressuring a first adherent portion (3a) of the tab wire (3) placed on one of the electrodes by a first pressuring head (22) having a heating / pressuring unit. The method also includes a heat dissipating step of pressuring a second adherent portion (3b) of the tab wire (3), placed on the other electrode, by a second pressuring head (23) having a heat dissipating unit.

A method and apparatus for the prevention of deep vein thrombosis (DVT), pulmonary embolism (PE), lower extremity edema, and other associated medical conditions by adjusting the temperature of the muscles of a foot or a leg, and / or applying vacuum or negative pressure to increase blood flow. A human extremity such as a leg is exposed to a negative pressure environment and / or a thermally controlled environment within a medical device. In one aspect, the device is portable. A thermal exchange unit and, optionally, a vacuum or negative pressure unit, are provided to increase blood flow and vasodilation. The device can be programmed by a controller in a manner to stimulate the muscles of the extremity to reduce pooling of blood therein.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a circular, extended configuration, allowing a capsulotomy by applying an electrical pulse to the burning element. Optionally, predefined points of weakness allow removal of the tool should breakage occur during surgery.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit providing pressurized airflow, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool including a main housing, and an extendable-retractable burning element coupled to the main housing. The tool is in connection with the capsulotomy and movement control unit for providing electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Once in the anterior chamber, the burning element is switched to a circular, extended configuration, so as to allow performance of a capsulotomy by applying an electrical pulse to the burning element.

The invention relates to a car-carried walking soil compactness sensor, which comprises a conehead, a micro pressure unit, a support rod and a connecting rod that are connected into an L shape in sequence. The micro pressure unit further comprises a bearing elastomer, a protecting sleeve and an inductive element. Both ends of the elastomer are provided with a connecting thread for connecting the conehead and the support rod, the protecting sleeve is tubular with a bottom provided with a through hole, the bearing elastomer is inserted into the protecting sleeve by the through hole, and the inductive element is positioned in a space formed by the bearing elastomer and the protecting sleeve and adhered on the outer surface of the bearing elastomer. The soil compactness sensor of the invention has the advantages of simplifying measuring mechanism, improving integration level and accuracy and being beneficial to integrating the soil compactness sensor to other farmland car-carried operation processes.

This invention discloses a preparing method for a multifunction integrated sensor chip, which applies micro-mechanical electronic technology and IC micro-processing technology to process three sensing units sensing pressure, temperature and humidity on an area of 5mmx5mm tube core, the pressure unit based on the piezo-resistance effect is used to test the pressure variance of environment, the temperature unit is used to test the change of environment temperature based on the thermal resistance effect and the humidity unit based on the capacitance theory used to test the variance of the environment humidity.

An image forming apparatus includes a suction unit; a pressure unit configured to pressurize the inside of a supply channel extending from a liquid container to a recording head at a pressurizing position along the supply channel; an opening and closing unit configured to open and close the supply channel at a position downstream of the pressurizing position; and a control unit configured to cap a nozzle surface with a cap and suction ink from nozzles with the suction unit, to move the cap away from the nozzle surface after pressurizing the inside of the supply channel with the pressure unit to a pressure greater than or equal to atmospheric pressure, to wipe the nozzle surface with a wiping part after closing the supply channel with the opening and closing unit, and to open the supply channel with the opening and closing unit after wiping the nozzle surface.

The invention relates to the technical field of experimental devices, and discloses a gas-containing coal hydrofracture-induced dynamic damage simulation monitoring device and method. The device comprises a sealed cavity for containing a cubic coal sample, an acoustic emission monitoring unit, a confining pressure unit, a hydrofracture unit and a gas injection unit, wherein the confining pressure unit extends into the sealed cavity to apply confining pressure onto the cubic coal sample; the gas injection unit extends into the sealed cavity to inject gas into the cubic coal sample; the hydrofracture unit extends into the sealed cavity to perform hydrofracture on the cubic coal sample; and the acoustic emission monitoring unit extends into the sealed cavity to acquire an acoustic emission signal from the cubic coal sample. The device can be used for monitoring and analyzing gas-containing coal hydrofracture-induced dynamic damage with different gas pressure and different coal intensities under different pressure conditions. The device is simple in structure, simple in monitoring method and easy to operate.

A blood test apparatus having a simple constitution whereby stable measurement can be conducted by surely sampling the blood in an amount being small but sufficient for the test without placing too much burden on a patient. When a first skin contact sensor of this apparatus detects the skin, driving of a negative pressure unit is initiated. Thus, the skin rises and comes into contact with a second skin contact sensor. After piercing into the skin, the negative pressure supply is once ceased. Next, the negative pressure is applied again for a definite period of time. Thus, the opening in the skin is broadened, which facilitates the flow out of the blood.

A System of monitoring the air pressure in the tires of a moving vehicle continuously in real time for measuring the pressure in a rotating tire and transmitting the information via magnetic pulses to a sensor pickup located near the tire, but on a non-rotating part of the vehicle, for transmittal via wire to a micro controller for conversion to air pressure units and display. It comprises a sensor module for each wheel, and an electronics module in the passenger compartment. It computes the air pressure by measuring the phase angle between a fixed magnet and a magnet placed on a piston in an air cylinder within the tire.

An integrated circuit (IC) package socket device that can receive two or more IC packages and the method of operating the device. Uses for the device include burn-in in which testing and programming of dies or completed IC packages. The device can also be arranged to receive two or more types of IC packages. A pressure unit is tiltably attached to the lid of the socket device providing a resilient normal force to each of the two or more IC packages without damaging the IC packages. The pressure unit has two or more pressure pads that correspondingly apply the resilient normal force to each of the two or more IC packages. The IC packages are received in recesses where the recesses are typically arranged in an array with the pressure pads in the pressure unit arranged so as to align with the array of recesses.

The invention relates to a heart rate-based fall detection method and a heart rate-based fall detection system applied to a wearable electronic device. The system comprises an air pressure unit, a heart rate unit and a fall unit, wherein the air pressure unit is used for starting an air pressure detection function to acquire a relative height difference; the heart rate unit is used for starting heart rate detection if the relative height difference is larger than or equal to a preset height difference threshold; and the fall unit is used for sending a fall alarming signal when the heart rate change value is detected to be larger than or equal to a preset heart rate change threshold. Thus, according to the heart rate-based fall detection method and the heart rate-based fall detection system applied to the wearable electronic device, through detecting the air pressure to trigger heart rate detection, a condition in which an old person does not wear the detection terminal on the body can be eliminated, whether the old person falls can be intelligently judged more accurately, timely help is given, practicability is strong, and the use is convenient.