69results about How to "Protection from contamination" patented technology

An electrosurgical instrument system for ready deployment of the instrument at the end of a line within a sterile surgical field employs a disposable reel detachably mounted on a base unit which allows smooth manual withdrawal and provides controlled motor-driven retraction of the line and instrument. The line includes power, control and ground circuits and the circuits are completed through a reel in a detachable cassette mounted on a base unit, which includes a tension-controlled belt permitting manual payout and controlled drive return of the line and instrument.

A radiation sensor includes an integrated circuit radiation sensor chip (1A) including first (7) and second (8) thermopile junctions connected in series to form a thermopile (7,8) within a dielectric stack (3). The first thermopile junction (7) is insulated from a substrate (2) of the chip. A resistive heater (6) in the dielectric stack for heating the first thermopile junction is coupled to a calibration circuit (67) for calibrating responsivity of the thermopile (7,8). The calibration circuit causes a current flow in the heater and multiplies the current by a resulting voltage across the heater to determine power dissipation. A resulting thermoelectric voltage (Vout) of the thermopile (7,8) is divided by the power to provide the responsivity of the sensor.

A nutritional preparation in solid dosage form is provided with a bottle of water. The solid dose is contained a safe and sanitary blister package and attached by means of a shrink band to the closure of the bottle. The shrink band provides a tamper-indicating seal for the both the bottle and blister contents. An advantage of the design is that it does not require customization of bottle and closure tooling, and thereby provides a simple and cost-effective means for combining solid and liquid materials in a unitary package.

A configurator tool, method, program product and service for configuring an optical network wherein an input device is used to input a proposed configuration of the optical network where the proposed configuration is different from the present configuration. A processor evaluates the proposed configuration of the optical network and determines needed components to complete the proposed configuration. An output device provides a listing of needed components determined by the processor. The output device may include automatically ordering the needed components from suppliers. In one embodiment, the processor may design several variations of the proposed configuration, and optimize the design.

The invention discloses a smart pipeline type automatic dehydrator of the oil tank and pressure pot, comprising an entrance flange, an outlet flange, a honeycomb duct, a major detecting controller, a minor detecting controller, a major filter, a minor filter, a vapor pipe, a temperature controller, an adjusting valve and a drain-trap. The entrance flange of the honeycomb duct is connected with the spot oil tank, and the outlet flange is connected with the adjusting valve; the sensors of the major and minor detecting controllers are respectively connected with the honeycomb duct, and the major and minor filters are respectively covered on the sensors of the major and minor detecting controllers, the signal outputs of the major and minor detecting controllers are connected with the adjusting valve. Because the dehydrator is connected with the oil tank by the mounting flange, when the size is not suitable, the problem can be solved by adding a converting joint, and the mounting is very convenient. Meanwhile the honeycomb duct adopts a streamline structure, and completely without circulation dead angle. While dehydration, the solid impurity settled in the bottom medium of the dehydrator can be discharged with water without budget in the dehydrator, and the invention has a self rinsing function, and does not need periodical rinsing. The invention is suitable for the automatic dehydration field of oil tank, liquefied gas tank and pressure storage tank of chemical product.

A one piece hoof sock bandage for use with horses, livestock, and other hoofed animals includes an elastic, water resistant sock material having a sole portion coated with a resilient, puncture resistant material. The sock material provides uniform compression to avoid constriction and extends up the leg to the pastern or higher where it is held in place by a cuff portion. The resilient sole portion covers the sole of the hoof and extends up the wall of the hoof far enough to prevent the sole portion from sliding on the hoof and to protect as much of the hoof as desired. The sock and sole portions may contain medications in various forms and generally function to treat the hoof area and protect it from contamination.

The preparation and use of photosensitizer-containing nanoparticles including photoactive vitamin-containing nanoparticles as photodynamic antimicrobial agents are disclosed for tissue repair including the treatment of chronic wounds.

The invention belongs to the technical field of oilfield workover in the conditions of perforated casing completion, and discloses a horizontal well concentric tubing continuous negative pressure sand pump process tubular column, wherein a high pressure water faucet is connected with a tool tubing through a reversing joint, the lower end of the tool tubing is connected with a concentric tubing combination through a conversion joint, the lower end of the concentric tubing combination is connected with a negative pressure sand pump device, a steel ball and a ball seat are arranged in the reversing joint, the steel ball is connected with a spring, the other end of the spring is fixed on an upper position of the ball seat, a discharge hole is arranged on the wall of the reversing joint which is arranged below the ball seat, and a sliding sleeve which blocks the discharge hole is arranged on the outer wall of the reversing joint. The horizontal well concentric tubing continuous negative pressure sand pump process tubular column achieves negative pressure sand pumping under the premise that the demands of oilfield horizontal well continuous tubular column downward operation are met, simultaneously has the functions that scales are cleaned up and cements are crushed in a sleeving. The horizontal well concentric tubing continuous negative pressure sand pump process tubular column integrates the functions of sand removal, scale clean and cement crushing in a shaft firstly and achieves once integration operation, greatly simplifies construction procedure, and improves construction efficiency.

The invention discloses asphalt flue gas purification treatment equipment. The equipment comprises a dynamic wave washing device, a light direct oxidation and photocatalysis oxidation device and a water treatment device. The dynamic wave washing device and the water treatment device are connected through a water pipe. The dynamic wave washing device and the light direct oxidation and photocatalysis oxidation device are connected through a gas pipe. It is an important breakthrough that dynamic wave washing, gas, solid and liquid separation, photochemical oxidation technology and water treatment are combined for successful purification treatment of asphalt flue gas in the technology in the field of environmental protection. At present, multiple enterprises in China basically adopt a sprinkling cleaning and activated carbon adsorption method for treating industrial waste gas containing high-concentration organic matters, and the problems that the pollution cleaning effect is not ideal and activated carbon is hard to treat exist. The dynamic wave washing and photochemical oxidation technology is adopted for successful purification treatment of asphalt flue gas, and a novel wider way is opened up through the light direct oxidation and photocatalytic oxidation cooperative reaction technology for atmospheric pollution treatment and industrial waste gas treatment in China.

The invention relates to a laser processing device and a laser head anti-collision assembly thereof. The laser head anti-collision assembly comprises installation bases, elastic pieces, connecting pieces and sensors. The elastic pieces are located in containing spaces of the installation bases. The first ends of the elastic pieces are in butt joint with the installation bases. The connecting pieces comprise body parts and clamping parts. The body parts are in a barrel shape, and the clamping parts are in a circular ring shape and protrude out of the body parts. The connecting pieces are installed on the installation bases. The clamping parts are connected with the installation bases in a clamping manner. At least part of the body parts penetrate out of the containing spaces through installation openings, and the ends, away from the installation bases, of the body parts are used for being connected with laser heads. The second ends of the elastic pieces are in butt joint with the bottoms of the body parts. The connecting pieces can stretch, contract and rotate at the installation openings. The outer surfaces of the parts, close to the installation bases at the installation openings, of the body parts are in an arc face shape. The outer surfaces of the parts, close to the installation bases at the installation openings, of the body parts are in an arc shape face shape. When a laser head is subjected to impacts to deflect, the phenomenon that the connecting pieces are blocked by the installation bases can be avoided, and reliability of the laser head anti-collision assembly is improved.

The invention relates to a method for manufacturing a wood plastic sheet layered entity component based on ultrasonic welding. The invention relates to a rapid moulding technology for manufacturing layered entity, and concretely relates to the method for manufacturing the wood plastic sheet layered entity component based on ultrasonic welding. The method solves the problems that patternless manufacturing of large-scale complex parts (models) can be difficultly realized by a traditional manufacturing process and the thickness of the current wood plastic material is large. The method comprises the following steps: uniformly mixing dried wood powder, polyethylene plastic and other auxiliary agents according to proportion by a high-speed feed mixer, extruding through a double stage plastic extruding machine, directly calendering the extruding molten state material without cooling through a ZS-406E electric vulcanizing machine to sheets, then using a laser cutting machine for cutting to an assigned shape according to a CAD driving model, and finally using an ultrasonic welding machine for welding the wood plastic sheets layer by layer according to a rapid moulding mechanism of a three-dimensional model.

The invention provides a reinforced concrete water pipe, which includes a concrete pipe core and a steel skeleton. The concrete pipe core is generally cylindrical. The inner diameter of the mouth support ring is larger than the outer diameter of the socket support ring, and the inner wall of the concrete tube core is provided with an anti-corrosion coating; the steel skeleton is generally cylindrical and formed by connecting ring steel bars and axial main bars, and the steel skeleton is coaxially embedded in the In the concrete pipe core: the inner wall of the socket support ring and the outer wall of the socket support ring are respectively provided with a steel socket and a steel socket, and the steel socket and the steel socket are respectively welded to the two ends of the axial main reinforcement of the steel skeleton, and the steel socket A first annular groove is provided on the end face of the inner concrete pipe core. The invention effectively prevents sewage from directly contacting steel sockets, steel sockets and other metal parts and concrete tube cores, avoids pipeline leakage due to corrosion and penetration, and avoids environmental pollution.

The invention relates to an independent cavity natural ventilation pressure measuring instrument. The independent cavity natural ventilation pressure measuring instrument includes a base, a lantern ring, a tube, a lead wire, and a wire outlet aviation plug; the base is internally provided with an oil charging pipeline; the right side of the base is provided with the tube, and the base is connected to the tube by the lantern ring; a sensor is arranged within the lantern ring; an oil charging cavity is arranged between the sensor and the base; the rear side of the sensor is provided with a circuit board, and the oil charging cavity passes through the sensor, and then is connected to the circuit board; the outer edge of the circuit board is provided with sealing insulation paste; one end of the lead wire is connected to the circuit board, and the other end of the lead wire is connected to the wire outlet aviation plug. According to the invention, secondary pollution of measuring media can be avoided by adoption of an independent ventilation cavity, and washing and cleaning of a sanitary occasion can be assured by adoption of a primary oil charging structure; an external ventilation structure of the sensor, and a two-channel ventilation design of a polymer ventilation plug and a polymer ventilation film can assure natural ventilation and can effectively prevent moisture condensation and moisture leakage; the influence of moisture on the performances of the natural ventilation pressure measuring instrument can be avoided by adoption of a ventilation and circuit board isolation design; a whole sealing structure within the circuit board can assure a long and reliable operation of the circuit board, and the natural ventilation pressure measuring instrument is suitable for operations in various environments.

The invention relates to a safe syringe which comprises a needle and a transparent contractile needle sleeve, wherein the needle comprises a needle tip, a needle rod and a needle bolt; the needle sleeve is sleeved on the need tip; one end of the needle sleeve is connected with the needle bolt, and the other end of the needle sleeve is open; and length of the needle sleeve meets the condition that the needle tip is sleeve in the needle sleeve. As for patients, since hands of a medical staff can not be in direct contact with the needle before injection through the protection of the needle sleeve, and the pollution to the needle is prevented. As for the medical staff, the medical staff can not be stabbed before injection through the protection of the needle sleeve; besides, because the needle sleeve is the contractile sleeve, the needle sleeve can be automatically restored to the original state after injection, and the needle is protected, thereby greatly reducing the stabbed probability of the medical staff.

The invention discloses a coal crushing device of a thermal power plant. The coal crushing device comprises a first crushing chamber and a second crushing chamber. A feeding opening is arranged on theleft side of the first crushing chamber. An electric telescopic machine is arranged at the upper end of the first crushing chamber. A smashing disc is arranged at the lower end of the electric telescopic machine. Smashing teeth are arranged at the lower end of the smashing disc. Bases are arranged at the lower end in the first crushing chamber. A screening opening is formed in each base. The second crushing chamber is arranged below the first crushing chamber. A crushing device is arranged at the upper end in the second crushing chamber and is composed of rotary motors, rotary shafts and crushing teeth. According to the coal crushing device of the thermal power plant, through the arrangement of the inclined feeding opening, gravitational potential energy is converted into internal energyin the process that coal falls to the base, the smashing teeth are arranged on the smashing disc to be matched with the screening openings in the process that coal briquettes are smashed for the firsttime, the smashing effect is better, and the smashing teeth are protected.

A device to aid in flossing teeth including a jaw hook body, a pair of floss retaining projections on one end of the jaw hook body, and a grip handle at an opposite end of the jaw hook body. The grip handle may be a closed loop, an open loop, a padded structure, a pivoting structure, a decorative structure, a structure for holding the tool upright on a surface, or some combination of these features.

The spring scale according to present invention comprises an outer tube (1), an inner tube (4) with an O-ring (7), an end eye (20), a spring holder (9), a spiral spring (11), a set screw (13), a hanger (19), a holder bearing (35) as well as a cover (41) with spur (42). The parts are adapted to each other according to <cross-reference target="DRAWINGS">FIG.11< / cross-reference>.

A seal formed of laminated films adhered to a peel strip. The seal includes a target area free of adhesive, and adhesive surrounding the target area. The seal is formed so that the target area is visually distinguished from the surrounding adhesive to facilitate placement of the seal on a medical container by a user. The use of a colored adhesive, reflectivity of the adhesive, a colored laminate, or a colored target background can be utilized to make the target area visually different from the surrounding adhesive.

The invention discloses a drug analysis sampler, which comprises a bottle body, a bottle cap is arranged at the upper end of the bottle body, a rubber dropper is interspersed in the middle of the bottle cap, and a hook is fixedly installed in the middle of the rubber dropper. And the lower surface is provided with a bump, the bump is rotatably installed with a rotating plate, the lower end of the rotating plate is fixedly equipped with a card slot, the edge of the card slot is fixedly installed with a permanent magnet, and the lower end is fixedly installed with a medicine-taking spoon , the permanent magnets are set as two groups, respectively fixed on the edges of the corresponding slots, and the magnetic properties of the two groups of permanent magnets are different, the material of the slots and the medicine spoon is plastic or glass, and the height of the slots Not less than the height of the tip of the lower end of the rubber dropper, the present invention can take out the solid medicine well, and the rubber dropper provided at the same time can measure a certain amount of liquid medicine for analysis. When measuring the solid, there is a The card slot can well protect the dropper of the rubber head from being polluted, and realizes dual-use of solid and liquid.

The invention discloses a metal halide pill injecting device comprising a main body of the metal halide pill injecting device and a stepping motor component connected with the main body of the metal halide pill injecting device. The stepping motor component is provided with a fitting seat, a stepping motor arranged on the fitting seat, a pinion wheel arranged on the stepping motor and a hand-screw bolt arranged on the fitting seat; the main body of the metal halide pill injecting device is provided with a base, a screw hole arranged on the base and connected with the hand-screw bolt, a main gear arranged on the base and jogged with the pinion wheel, an outer cylinder connected with the base, an outer cylinder cover covering the outer cylinder and an air inflow self-sealing valve body arranged on the outer cylinder body. The metal halide pill injecting device is also provided with a protecting argon charging joint on which a self-sealing plug inserted into the air inflow self-sealing valve body is arranged. The metal halide pill injecting device is reliable and convenient to use.

The invention discloses a self-cleaning washing bottle, relates to a washing bottle and provides a self-cleaning washing bottle with a gas purifying function, which is convenient to use, has high jet flow power and can be used for effectively preventing microorganisms from the air, dust or gas which may cause liquid deterioration and the like from entering to protect liquid in the bottle from being polluted. The self-cleaning washing bottle is provided with a plastic bottle, a bottom cap, a liquid spray pipe, an air suction pipe and a purifying device, wherein the bottle cap is connected with the bottleneck of the plastic bottle in a matching way; the liquid spray pipe is provided with a check valve or a one-way valve, passes through the bottle cap and is inserted into the plastic bottle; the air suction pipe passes through the bottle cap, is inserted into the top of the plastic bottle and is provided with a check valve or a one-way valve; the inlet of the check valve or the one-way valve is connected with a purifying device; and the outlet of the check valve or the one-way valve is connected with the air suction pipe. By adopting the self-cleaning washing bottle, the pollution risk of trace analysis and biology laboratory is greatly lowered, the service life of liquid in the washing bottle can be prolonged effectively, and the resource consumption is reduced. The self-cleaning washing bottle is suitable for experiment places lacking in ultraclean environment, in particular for wild fields.

The invention discloses a burner cap and a cooker burner comprising the same. The burner cap comprises a burner cap body. The top of the burner cap body is provided with a plurality of flame outlet holes which are arranged at intervals in the circumferential direction. The burner cap further comprises a baffle. The baffle is rotatably arranged on the top surface of the burner cap body to form a first position and a second position, wherein when in the first position, the baffle does not shield the flame outlet holes, and when in the second position, the baffle partially shields the flame outlet holes. The cooker burner comprises the burner cap. According to the burner cap, the shielding position of the baffle to the flame outlet holes is changed by rotating the baffle to switch between thefirst position and the second position, accordingly, the flame shape is changed, and the requirements of users for different shapes of flames are met. Moreover, when the burner cap is not used for along time, the baffle can be arranged in the second position to shield fire holes below the flame outlet holes, the fire holes below the flame outlet holes are protected against contamination, and theservice life of the burner cap is prolonged.

The invention relates to a storage unit for a battery, a battery rack and a battery swap station. The storage unit comprises a body, a transfer portion and a cleaning device, wherein the body is usedfor storing the battery, the transfer portion adjacent to the cleaning device is arranged on the body and limits a transfer path, the battery moves relative to the body along the transfer path, and the cleaning device is arranged on the body and used for cleaning the battery at the position of the body. The battery stored into the storage unit can be cleaned.

The invention discloses inflatable folding shoes. The inflatable folding shoes comprise soles (1) and vamps (2), wherein each sole (1) comprises bearing blocks (3) and a sole inflatable cavity (4); the number of the bearing blocks of each sole is more than two; more than two bearing air column mounting holes (5) are formed in each bearing block (3); each sole inflatable cavity (4) comprises a main cavity (6) for connecting a front bearing area and a rear bearing area, bearing air columns (7) extending out from the front and rear ends of the main cavity (6) and separating and folding cavities (8) between adjacent bearing blocks (3); each vamp (2) and each sole inflatable cavity (4) are both of hollow cavity structures; the insides of each vamp and the corresponding sole inflatable cavity are mutually connected to form an integrated structure for inflating and deflating through air holes (9) by a preserved space; the air holes (9) are positioned in the vamps (2) or the sole inflatable cavities (4). According to the inflatable folding shoes disclosed by the invention, the problems of non-uniform air pressure, unstable walking and the like caused by soles of pure inflatable shoes are solved; the inflatable folding shoes have the advantages of convenience in accommodation, light weight, easiness for carrying and the like.

The invention belongs to the field of animal husbandry, and particularly relates to a padding, feed, drinking water strains and bioisolation combined no-antibiotics ultivation method. The no-antibiotics cultivation method is characterized by comprising: (1) adding padding bacteria in the padding so as to manufacture a fermenting bed; (2) adding feed bacteria in the feed; (3) adding drinking water bacterium suspension in daily drinking water; and (4) planting greening trees and Chinese herbal medicine with a sterilizing effect to replace an isolating strip between each two adjacent colony houses. The no-antibiotics cultivation method remarkably improves a raising environment, increases cultivation income, reduces raising cost and cultivation risks, and provides a forceful guarantee for obtaining high-quality no-antibiotics products.