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704results about How to "Guaranteed continuous supply" patented technology

Disposable mask assembly with exhaust filter and valve disc and method of assembling same

A face mask assembly and method of assembling a face mask is provided for a patient that includes a face piece sized to fit over the patient's nose and mouth. The face mask assembly forms a mask chamber between the face piece and the patient's nose and mouth. An inhalation adapter is coupled to the face piece to deliver medication to the chamber. A filter housing is coupled to the face piece and includes a flange section that defines a passageway to connect the mask chamber and the flange section. A filter is positioned in the filter housing. A cover is coupled to the flange section and has an exhalation opening or vent to allow gases from the mask chamber to pass through the filter and escape from the passageway to the atmosphere. In a second embodiment, the filter housing is modified by providing a frame adjacent the bottom with a cross-shaped structure and a retainer button attached to the housing. A valve disc is provided between the retainer button and frame adapted to allow gases from the mask chamber around the valve disc towards the filter. When a patient inhales oxygen through the nasal portion, the valve disc moves towards the mask and partially covers a plurality of apertures to partially block additional air from entering the chamber. When a patient exhales contaminated oxygen, the valve disc moves towards the retainer button to allow a maximum amount of air through the apertures towards the filter.
Owner:RESPAN PRODS

Device and method for preparing highly effective continuous electrostatic spinning nano fibre felt

The invention relates to a preparing device of a high-effective continuous-type electro-spin nanometer fiber felt, the invention comprises a fluid supply system, a metal roller, a receiving device and a spinning fluid recycling groove. The process for preparing comprises firstly, preparing polymer spinning fluid with correct concentration in a dissolution kettle, temporarily storing in a liquid storage tank after passing through a filter, secondly, connecting the metal roller and the positive electrode of a high-pressure electrostatic generator, applying correct electrostatic pressure, leading an aluminium screen cloth to connect ground, thirdly, leading the metal roller to rotate in correct rotary speed, fourth, starting a measuring pump, feeding spinning liquid from the liquid storage tank to an even allotter, leading the spinning liquid to be evenly allocated to a spraying hole on the front end of the even allotter, sputtering from the spraying hole to the surface of a rotating metal roller to form Taylor awl, fifthly, leading a coiling drum to rotate to drive a fiber receiving net to move, and continuously receiving nanometer fiber felt. The process for preparation of the nanometer fiber felt of the invention has high production efficiency, which is suitable for scale production of electro-spinning.
Owner:DONGHUA UNIV

Three-dimensional (3D) printer

The invention discloses a three-dimensional (3D) printer which comprises a rack, a base, an X-axis movement system, a Y-axis movement system, a Z-axis movement system and a printing device, wherein the rack comprises a left upright post, a right upright post, an upper connecting plate and a lower connecting plate; the upper connecting plate and the lower connecting plate are connected with the left upright post and the right upright post, respectively; the base is connected with the lower connecting plate; the upper connecting plate is connected with a printing supplies connecting rack; the printing supplies connecting rack is connected with a printing supplies fixing disc; the printing device is connected with the X-axis movement system; the X-axis movement system is connected with the Z-axis movement system; the Z-axis movement system is connected with a guide rail of the left upright post and the right upright post; the Y-axis movement system is connected with the base; the X-axis movement system is provided with an X-axis movement guide rail through which the printing device moves; a power supply and a controller which are connected with each other are arranged at the bottom of the base; the controller is connected with the X-axis movement system, the Y-axis movement system, the Z-axis movement system and the printing device. The 3D printer is simple and compact in structure, small in size and low in manufacturing cost.
Owner:UNIV OF JINAN

Novel hybrid vertical/short take-off and landing (V/STOL) unmanned aerial vehicle

The invention discloses a novel hybrid vertical / short take-off and landing (V / STOL) unmanned aerial vehicle, aiming at solving the problems of complicated structure, high cost and the like of the existing aerial vehicles. The unmanned aerial vehicle comprises a body, a main wing, take-off and landing auxiliary wings arranged on the main wing, canards arranged at the front part of the body, a vertical tail arranged at the rear part of the body, a landing gear, an accumulator battery, a control system, a power supply management system and the like, wherein the landing gear, the accumulator battery, the control system, the power supply management system and the like are arranged below the body. The unmanned aerial vehicle adopts a ducted fan to provide a lift and assist balance during vertical take off and landing, and adopts an engine to provide the main push force and to automatically generate electricity so as to effectively utilize oil-electricity complement, simultaneously the reasonable hybrid use of fuel oil and electric energy is achieved through the structure and aerodynamic configuration design of the aerial vehicle, thereby achieving vertical and short take-off and landing, reducing the control difficulty of the aerial vehicle and solving the problem of inconsistence between difficult control and short voyage of the existing V / STOL unmanned aerial vehicles; the novel hybrid vertical / short take-off and landing (V / STOL) unmanned aerial vehicle disclosed by the invention can achieve vertical / short take-off and landing, and has the advantages of flexible and steady flight, wide application range and the like.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Portable recyclable fluid flushing method

InactiveUS20040244106A1Sufficiently lightweightSufficiently smallLarge containersBathing devicesEmergency SupplyRe introduction
A small-scale portable recyclable fluid flushing method used for flushing irritants or inflammatory agents from the skin or eyes, or for flushing infectious debris from wounds. The invention is either made reusable or disposable, and typically comprises: a. a single or plurally chambered container with at least one flushing fluid chamber filled with an uncontaminated flushing fluid appropriate for the intended flushing procedure; b. a first outflow fluid conduit, e.g., a channel or tube, which transports uncontaminated fluid from the container flushing fluid chamber to a pump or impeller housing; c. a manual or electrically operated pump or impeller for transporting uncontaminated fluid through to a second outflow fluid conduit to a dispersal outlet or nozzle; d. a fluid runoff collector surrounding the dispersal outlet, or a catch basin situated below the dispersal outlet, either of which acts as a sump to capture the contaminated runoff fluid from the flushing procedure; e. a first drain fluid conduit; f. an optional one-way elastomeric drain valve, e.g., a synthetic polymer duckbill valve, such as silicone rubber, or other form of check valve preceding the first drain fluid conduit to avoid reverse flow spillage; g. an appropriate sealed filter media unit suitably housed in line with the first drain fluid conduit for decontamination of the contaminated fluid run-off from the drain; h. a second drain fluid conduit to re-introduce the reclaimed decontaminated fluid from the sealed filter media back into the flushing fluid chamber for re-introduction to the fluid transport system; i. an optional second outflow fluid filter for final removal of any residual contaminants prior to re-introduction to the first outflow fluid conduit. The portable recyclable fluid flushing method of the invention provides a reliable emergency supply of flushing fluid for continuous flushing dispersal onto an affected body part. Typically, the filtering media used will have visual indicators to warn when the useful life of the media is ending.
Owner:CHESTERS THOMAS PETER

Frequency-division multiplexing (FDM)-based three-dimensional (3D) printer

The invention discloses a frequency-division multiplexing (FDM)-based three-dimensional (3D) printer, comprising a frame, a base, an X-axis mobile system, a Z-axis mobile system and a printing device, wherein the printing device is connected with the X-axis mobile system; the X-axis mobile system is connected with the Z-axis mobile system; the Z-axis mobile system is connected with a guide rail of an upright post; a power supply and a controller are arranged on the base; the controller is connected with the Z-axis mobile system; the Z-axis mobile system comprises a third numerical control motor, a left screw and a right screw, a Z-axis fixed base and a limit switch; the left screw and the right screw are respectively arranged at the outer sides of a left upright post and a right upright post; the third numerical control motor is connected with the lower ends of the screws; the screws are connected with screw nuts; the screw nuts are connected with the Z-axis fixed base; the Z-axis fixed base is connected with the X-axis mobile system; a fixed base through hole is formed in the Z-axis fixed base; the left upright post and the right upright post pass through the fixed base through hole; the bearing is matched with the guide rail of the upright post. Thus, the FDM-based 3D printer is simple and compact in structure, small in volume and low in manufacturing cost.
Owner:UNIV OF JINAN

Disposable mask assembly with exhaust filter and valve disc and method of assembling same

A face mask assembly and method of assembling a face mask is provided for a patient that includes a face piece sized to fit over the patient's nose and mouth. The face mask assembly forms a mask chamber between the face piece and the patient's nose and mouth. An inhalation adapter is coupled to the face piece to deliver medication to the chamber. A filter housing is coupled to the face piece and includes a flange section that defines a passageway to connect the mask chamber and the flange section. A filter is positioned in the filter housing. A cover is coupled to the flange section and has an exhalation opening or vent to allow gases from the mask chamber to pass through the filter and escape from the passageway to the atmosphere. In a second embodiment, the filter housing is modified by providing a frame adjacent the bottom with a cross-shaped structure and a retainer button attached to the housing. A valve disc is provided between the retainer button and frame adapted to allow gases from the mask chamber around the valve disc towards the filter. When a patient inhales oxygen through the nasal portion, the valve disc moves towards the mask and partially covers a plurality of apertures to partially block additional air from entering the chamber. When a patient exhales contaminated oxygen, the valve disc moves towards the retainer button to allow a maximum amount of air through the apertures towards the filter.
Owner:RESPAN PRODS
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