1410results about How to "Reusable" patented technology

The disclosure is directed to an implantable device for sensing CSF flow through an implantable ventricular shunt. The sensing device is implanted with the CSF shunt, and includes a flow sensor to sense flow rate or shunt blockage. The sensing device is either placed within or adjacent to the fluid path through the shunt. The sensing device transmits the sensed flow rate to an external monitoring device by wireless telemetry. The sensing device may be integrally formed as part of the shunt, or clamped onto a portion of the shunt, in which case the sensing device may be resusable. An external monitor receives the transmitted flow signal and presents information based on the flow signal. The sensing device may be inductively powered or include its own power supply.

This invention refers to an electronic cigarette and an electronic cigarette device. The electronic cigarette includes an outer shell defining a display window, and a thermometer module disposed on the outer shell; the thermometer module comprises a measuring unit, a display unit located within the outer shell and a circuit processing unit; the measuring unit gets a temperature data of an object to be measured or medium and transmits the temperature data to the circuit processing unit, and finally the circuit processing unit controls the display unit to display the temperature data. The measuring unit comprises a temperature sensing component located at an outer wall of the outer shell of the electronic cigarette and pins electrically connected the temperature sensing component to the circuit processing unit. The electronic cigarette has a function of sensing and measuring body temperature, or temperature of other objects or medium, such as the ambient temperature.

The invention discloses a method for preparing a multi-sulfonic acid group functionalized ionic liquid. In the method, a poly-nitrogen tertiary amine reacts with a sultone to an obtain multi-sulfonic acid radical betaine, and the obtained betaine is subjected to acidification by an acid to obtain the multi-sulfonic acid group functionalized ionic liquid. The ionic liquid prepared by the invention has the characteristics of high thermal stability, high acid value, low synthesis cost and good catalytic effect, etc.

A coupling is designed for sealingly connecting two fluid conduits such as automotive fluid lines in axial end-to-end relationship. The conduits have respective telescopically interengaging male and female end sections and the coupling comprises a base member to be carried on one of the fluid conduits and a retaining structure mounted on the base member and having two C-shaped arms which can be interconnected around the other conduit end section. A releasable lock acts between the arms to lock the retaining structure in engagement. In the locked condition the axially oriented abutment surfaces in the retaining structure engage peripheral shoulders on the conduits to prevent axial separation of the latter. The coupling can be fabricated from integral plastic components and preferably includes a guard arrangement to shield the releasable lock against inadvertent disengagement.

The application is directed to a leak-resistant closure for a plastic container having a generally planar central portion a peripheral portion, and a spring structure. The peripheral portion defines an annular recess with an inner wall having a secondary sealing formation for engaging a free edge of a container The outer wall of the peripheral portion has a primary sealing formation on an inner surface thereof and faces the annular recess, thereby defining the primary sealing formation. The spring structure biases the peripheral portion radially outward from the central portion, and the spring structure is positioned between the central portion and the peripheral portion.

The invention relates to a preparation method of a magnetic iron-based heterogeneous Fenton catalyst taking graphene as a carrier and an application. According to the method, the graphene serves as the carrier, magnetic nano-scale ferroferric oxide and nano-scale zero-valent iron (Fe0) are compounded to the surface of the graphene to serve as the heterogeneous Fenton catalyst in an in-situ growth mode, aggregation of catalytic active nano-particles can be effectively prevented by the graphene serving as the carrier, and more active sites are exposed. Besides, the graphene has high electron transfer capability, Fe0 easily transfers electrons to Fe3+ by taking the graphene as the carrier, Fe3+ is promoted to be transformed into Fe2+, so that catalytic activity of the catalyst is improved, the catalyst is easily recovered and reusable, pollutant removal efficiency is improved, phenol removal efficiency reaches 99% or more, and the used catalyst is recovered by an external magnetic field. The preparation method solves the problems that traditional Fenton catalysts are difficultly recycled and generate a lot of chemical sludge, and the preparation method has a certain economic value and practical value.

A leak-resistant plastic container and closure are disclosed, where the container has an open end, an inner periphery, an outer periphery, and a container flange extending around the inner periphery at the open end. The closure has a generally planar and circular inner lid, a spring extending around an outer circumference of the inner lid, an arcuate flange receptacle extending around an outer circumference of the closure at a circumference outside the spring, where the flange receptacle has an inner surface and an outer surface, a secondary sealing bead, positioned on the inner surface of the flange receptacle, and a primary sealing bead, positioned on an outer surface of the flange receptacle and opposite the secondary sealing bead, where the spring exerts a sealing pressure against the container flange when the closure is placed on the open end of the container.

The invention is a triangular shipping container that is easily closed, easily opened, and that is reusable. The container is formed from a cardboard sheet that is provided with a number of mating male and female tabs.

The invention discloses a multi-angle drop-hammer impact testing device. The multi-angle drop-hammer impact testing device comprises a test bench for fixing a test specimen, a drop-hammer assembly and a lifting mechanism, wherein the drop-hammer assembly is correspondingly arranged above the test bench by the lifting mechanism; the test bench comprises a test bench main body and an angle adjustment mechanism for adjusting the rotation of the test bench main body, and the drop-hammer assembly is kept to correspond to the test specimen on the test bench main body by a hammer adjustment mechanism. The invention also discloses the test bench of the multi-angle drop-hammer impact testing device using the structure. The test bench main body rotates by a preset angle by the angle adjustment mechanism, so as to simulate the impacts from different angles; the drop-hammer assembly is allowed to impact the test specimen from different angles, and the impacts comprise front-surface impact, the offset impact and the lateral impact, so that the material mechanical properties of the test specimen can be analyzed from different impact angles, and the flexibility and universality of the drop-hammer impact test are greatly improved.

The invention relates to a silicon carbide porous ceramic filter and a manufacturing method thereof, in particular to a filter material for high-temperature liquid or gaseous fluid. The ideal silicon carbide porous ceramic filter has the advantages of gradient pore structure, low sintering temperature, high use temperature, high porosity factor, low pressure drop, large geometric surface area, zigzag flow path, high intensity, long service life, low production cost, easy regeneration and repeated use. Moreover, the filter is formed by compounding and sintering a plurality of layers of ceramic materials of different pore structures, and comprises a main body billet layer, a transition compound film layer and a surface compound film layer. Therefore, the filter is suitable for filtration and purification of various high-temperature and low-temperature fluids such as molten metal, high-temperature flue gas, coking gas and automobile exhaust.

The invention provides a removable and reusable door frame guard for a door frame comprising a door jamb, door stop and trim molding attached to a plaster wall. The guard comprises an elongated member having a substantially planar web with depending parallel side panels normal to the planar web. One or both of the side panels terminate with two right angled flanges adaptable for a gripping action with the trim molding and plaster wall. For the hinge side, one side panel has a width about equal to the width of the door stop and about terminates at the jamb, and this narrow panel is adaptable to abut the side of the door stop, as well as the jamb along the marginal edge, thereby providing a gripping action at this side of the guard. Thus, when the guard component is installed over the door frame, the elongated member is adaptable to at least partially engage the door jamb and abut the door stop, and at least one side of the guard is adaptable to grip the trim molding.

The present invention belongs to the technical field of functional materials, and in particular relates to a preparation method of a wear-resistant super-hydrophobic super-lipophilic polyurethane sponge, and the method comprises the following steps: 1) hydrophobic nano-silica and polydimethylsiloxane are uniformly dispersed in n-hexane or anhydrous ethanol to obtain a system A; 2) a cleaned polyurethane sponge is put into the system A obtained in the step 1) for soaking for 1-2h, then taken out, and put into a drying oven for drying to obtain the wear-resistant super-hydrophobic super-lipophilic polyurethane sponge. The preparation method is simple, through nano-silica / polydimethylsiloxane modifying, the surface energy of the polyurethane sponge can be reduced, the surface and bulk phase of the polyurethane sponge both can reach super-hydrophobic super-lipophilic functions. Surface contact angles of organic solvents such as paraffin oil, petrol, diesel oil, n-hexane, acetone and the like on the surface of the polyurethane sponge is 0 degree, and a surface contact angle of water on the polyurethane sponge is greater than 150 degree. The prepared polyurethane sponge has excellent wear resistance, is non-fluorinated and environmentally friendly, and can be used for continuous separation of an oil and water mixture.

The invention relates to an electronic device, which comprises a panel and a flexible circuit board assembly, wherein the flexible circuit board assembly comprises a flexible circuit board and a colloid, one end of the flexible circuit board is electrically connected to an edge of the upper surface of the panel, and the other end of the flexible circuit board is bent and fixed at the lower surface which is opposite to the upper surface of the panel. The flexible circuit board assembly further comprises a first bonding portion, wherein the first bonding portion is arranged at the inner surface of the flexible circuit board in a peelable mode and covers the inner surface of the bending part of the flexible circuit board. The colloid is filled between the first bonding portion and the panel, and corresponds to the bending part of the flexible circuit board so as to be used for maintaining the bending degree of the flexible circuit board.

The invention discloses an industrialized, large-scale and factorized modular integrated house, which has the advantages of quick construction, firmness, durability, wind resistance, shock absorption, convenience in secondary disassembly and assembly and the like, is beneficial to warehousing and transportation, is not required to be installed by professionals and realizes industrialized and large-scale production and free house combination. The modular integrated house comprises ground beams which form a frame-type structure through connecting profiles; a plurality of floor units are detachably connected into a whole, and the integral edge of the floor units is lapped on a floor on the upper part of the inner side of the frame-type structure of the ground beams; a plurality of wall panels are detachably connected into transverse and longitudinal wall panels, an upright post is fixedly arranged on each corner of the ground beams, the lateral surfaces and the bottoms of the transverse and longitudinal wall panels are correspondingly detachably arranged on the upright posts and the ground beams to form an integral wall of the integrated house, and doors and windows are formed on the wall panels; and transverse and longitudinal collecting edges arranged on the tops of the wall panels and a ridge are positioned on the roof of the integrated house to form a roof slab.

The invention discloses a micro optical fiber gas sensor covered by adopting graphene and relates to the field of gas sensors, in particular relates to the field of an optical fiber intermodal interference sensor. A micro optical fiber which is drawn to have two thick ends and thin middle through a fused biconical taper method is arranged on a magnesium fluoride substrate, a single-layer graphene material covers the middle section of the micro optical fiber, and because the single-layer graphene material is extremely sensitive to chemical bonds between atoms and an extranuclear electron state is extremely sensitive to an ambient environment, distribution of a dielectric constant is changed due to contact between the material and trace gas molecule, so that the optical refractive index is changed, and finally the intermodal interference spectrum of light propagated in the optical fiber is changed, the gas types are identified by detecting the interference spectrum, and the aims of the gas sensor are achieved. Therefore, the micro optical fiber gas sensor has the advantages of small size, high precision, high sensitivity, stability in operation and repeated utilization effect.

The invention relates to application of nanometer cobaltosic oxide (Co3O4) used as a peroxide enzyme mimic for measuring the concentration of hydrogen peroxide; nanometer cobaltosic oxide used as the peroxide enzyme mimic has peroxidase-like activity, and further comprises various sizes of nanometer cobaltosic oxide particles; the particle diameter of nanometer cobaltosic oxide exceeds 9 nm; a cobaltosic oxide nanometer material can be used for catalyzing degradation of a phenolic substance, and has potential for being applied to printing and dyeing wastewater treatment. According to the application provided by the invention, the peroxide enzyme mimic function of nanometer cobaltosic oxide is found for the first time, so that nanometer cobaltosic oxide can be used as the peroxide enzyme mimic for measuring the content of hydrogen peroxide; compared with HRP, nanometer cobaltosic oxide used as a catalyst is higher in stability and reusability, and more efficient in peroxide enzyme mimic catalytic activity; without the presence of hydrogen peroxide, nanometer cobaltosic oxide can also be used for catalyzing color developing agents, and used as an enzyme mimic.

The invention discloses an acoustic emission testing apparatus with acoustic emission sensors built in a true triaxial chamber. T-shaped cavities are processed in rock sample clamps in three directions of a true triaxial electro-hydraulic servo mutagenesis testing system; the acoustic emission sensors are placed in the T-shaped cavities; a rubber plug located at an end part is used for fixing an acoustic emission signal line; the lead-out signal line is connected with a BNC adapter equipped with a terminal; the BNC adapter is directly connected with an amplifier to form a complete acoustic emission monitoring system; and the tail part of each acoustic emission sensor is fixedly connected with a push rod through a magnet piece, the push rod, a spring pad, a hard spring and minisized screws form a force-transferring mechanism together, and the acoustic emission sensor and a rock sample are allowed to always maintain tight contact in virtue of the mechanism. The acoustic emission testing apparatus is simple in structure and strong in operability; the acoustic emission sensors are repeatedly usable; considerable interference signals produced by external arrangement of the acoustic emission sensors are substantially reduced; and authenticity and reliability of acquired acoustic emission signals are guaranteed.

A functional and decorative key mask is disclosed that is printable and has a uniquely functional geometry for easy and clean removable attachment to the keyfaces of a keyboard or keypad. The materials and design combine to provide a durable and reusable key mask. In the preferred embodiment, the key mask is has a body and a tab extending outward, and a pressure sensitive adhesive adhered to the back surface. It is die-cut from a face stock that is attached by the adhesive to a coated release liner. Mask sets include several key masks having similar or individualized graphic illustrations that enable the user to make unique associations with the keys of the keyboard or keypad, and thus enhance their learning, skill, performance, and enjoyment of a standard keyboard or keypad, or one having specialized key assignments.

The invention discloses a preparation method of a flame retarding styrene polymer composite material. The raw materials of the composite material (weight) includes 100 parts of recovered styrene polymer, 10-30 parts of flame retardant, 1-5 parts of smoke inhibitor and 5-30 parts of intensifier. The preparation method includes the following steps: 1. stirring the intensifier in a high speed mixingmachine to have the water content of 1-2% at the temperature of 105-150 DEG C and at the revolving speed of 600-1000r / min; 2. crushing the recovered styrene polymer product in a high speed crushing machine and then adding the crushed product in a double-screw machine to be extruded and pelletized; 3. sequentially adding the pellet, dry wood powder, flame retardant and smoke inhibitor in the high speed mixing machine for 5-10 min of premixing, and then discharging the mixture to a low speed cold mixing machine for 5-10 min of mixing to obtain premix; and 4. melting down the premix through the double-screw machine until or single-screw machine for pelleting to obtain the flame retarding styrene polymer composite material.

The invention discloses a manufacturing method of an ice bag for preserving biological products. The manufacturing method comprises the following steps: 1) adding a thickener into hot water or boiling water, and fully stirring till dissolution; 2) adding high molecular water-absorbing resin into a solution in the step 1) while hot, stirring, then standing to carry out full reaction and imbibition on the high molecular water-absorbing resin and the thickener, and forming a gelatinous solid, wherein the reaction time is 5-30minutes; and 3) bagging the gelatinous solid in the step 2), cooling, and then placing into a cold storage, a refrigerating cabinet or a refrigerator at the temperature of -10 DEG C to -20 DEG C for freezing for above 12hours. The invention provides a simple, convenient and high-efficient manufacturing method of a high molecular cold storage agent, namely the manufacturing method of the ice bag for preserving the biological products. The prepared cold storage agent has the advantages of high repeatability, great freezing-thawing phase change latent heat, long cold storage time and fast water absorption speed, and furthermore, the cost of the process is low; and by changing the added thickener, the different phase change temperatures can be obtained for meeting various different application requirements.

The invention relates to beaded electrospun nanofiber immobilized saccharomycete and a preparation method thereof. Nanofiber comprises electrospun polymer or macromolecules, a solvent and a saccharomycete; prepared mixed solution is placed in an injector and is spun with an electrospinning instrument, microorganisms are introduced into the nanofiber by dispersion of the saccharomycete in a spinning solution, the advantages of the nanofiber such as high specific area, high porosity, large length-diameter ratio and bulkiness and porousness are combined, in-situ immobilization is achieved for saccharomycete cells, an active organic / microorganism composite is obtained, and a function similar to a multi-enzyme bioreactor is enabled. A product and preparation method of the invention have the advantages such as high processing efficiency, high reacting speed, ease of control, high antifouling capacity, continuous reusability, and ease of product separation. The beaded electrospun nanofiber immobilized saccharomycete is applicable to the fields such as biological catalysis, filtering and adsorption, drug delivery and tissue engineering.

A method for promoting biological activity uses a filter system to increase cell production of a fed batch bioreactor. The filter system cycles bioreactor fluid through a hollow fiber tangential flow filter which separates metabolic wastes (as well as proteins) from cells produced in bioreactor and returned to fed batch bioreactor, improving cell production in the fed batch bioreactor. The filter system includes a disposable pump and filter, and a reusable control system. The pump is a low shear gamma stable pump gently cycling bioreactor fluid through the filter with minimal damage to the cells produced in the bioreactor. The pumphead and hollow fiber tangential flow filter are disposable. The pump motor is part of the control system and is reusable. The pumphead and filter are provided as an assembled and pre-sterilized unit allowing simple and quick attachment to the fed batch bioreactor, and simple and quick disposal.

The invention discloses a user authentication device based on a physically non-clonable technology PUF, comprising a physically non-clonable module PUF, an authentication module, an authentication control module, a random number generator and a counter, wherein, the physically non-clonable module PUF is embedded in the authentication device for generating authentication-related key pairs; The authentication module is embedded with an asymmetric algorithm and a digest algorithm to complete the operation to be executed by the authentication; The user can manually control sending authentication request and sending authentication information through the authentication control module; The invention is based on the three principles of simplicity, privacy security and compatibility, and meets therequirements of simplicity, high security and compatibility with a plurality of network servers. The chip inside the device adopts the non-clone technology PUF to ensure the uniqueness of the device,and meets the characteristics of non-clone replication and privacy security of the device.

A protective cap for a tank, such as a LPG tank, with a valve normally at the top. The protective cap covers the top of the tank in a fashion to protect the valve. The protective cap may have ribs that enable for stacking of the tanks on top of one another. The ribs also allow for easier handling, such as hooking onto. The protective cap may also have a protrusion to provide a secondary seal to the main service valve of the tank.