163results about How to "High protection level" patented technology

The invention provides a pump assembly comprising a suction pump and a safety valve arranged between the pump inlet and a fluid inlet for the assembly. The safety valve comprises an inlet valve and a moveable control member acting on the safety inlet valve, wherein the control member is operatable between an initial position in which the safety inlet valve is closed, and an activated position in which the safety inlet valve is open, and wherein the control member is moved from the initial to the activated position by means of suction action from the pump. By this arrangement the opening of the safety valve is positively controlled by the suction provided by the pump whereas the safety valve is closed during non-operation of the pump.

Processors that encrypt frames of data representing images and sounds, for example, use a first encryption process to encrypt control data that includes selected data from the data frames and use a second encryption process to encrypt non-selected data from the data frames. The first encryption process is responsive to a key, which may be associated with an intended recipient of the data frames. The second encryption process is responsive to a key that is obtained or derived from the control data. The encrypted control data and the encrypted non-selected data may be delivered to a receiver using separate media. The receiver recovers the data frames using decryption processes that are inverse to the first and second encryption processes. Efficient implementations of the second encryption process are disclosed.

Systems and methods are disclosed for providing and maintaining secure distributed randomly redundant data storage.

A method and process for forming a barrier layer on a flexible substrate are provided. A continuous roll-to-roll method includes providing a substrate to a processing chamber using at least one roller configured to guide the substrate through the processing chamber. The process includes depositing a barrier layer adjacent the substrate by exposing at least one portion of the substrate that is within the processing chamber to plasma comprising a silicon-and-carbon containing precursor gas. Also provided is a coated flexible substrate comprising a barrier layer based on the structural unit SiC:H, or SiOC:H, or SiOCN:H. The barrier layer possesses high density and low porosity. The barrier layer exhibits low water vapor transmission rate (WVTR) in the range of 10⁻²-10⁻⁴ g·m⁻²d⁻¹ and is appropriate for very low permeability applications.

A method for manufacturing recombinant neuraminidase by culturing in a suitable culture medium host cells which are transformed with a neuraminidase expression vector or infected with a virus which is transformed with a neuraminidase expression vector, wherein the expression vector comprises at least a part of the coding region of a neuraminidase gene of an influenza virus minus the region which codes for the membrane anchor, or a modified version thereof, preceded in phase by a signal sequence; and isolating the expression product neuraminidase from the culture medium. The invention further relates to vectors expressing the neuraminidase.

Field emission properties may also be improved by coating the carbon materials with metal oxides. These metal oxides contribute to lowering the work function of the carbon material as well as improve the life of the field emission properties of the carbon materials, especially under high current density operation.

According to some embodiments of the invention, a method for network protection is provided. The method includes receiving with a network security software a request from an entity to stop at least a portion of unauthorized network traffic from being transmitted through a firewall. The entity lacks control over the firewall and the network security software is operable to control the firewall. The method also includes using the network security software to automatically determine that the entity is an authorized entity authorized to make the request. The method also includes initiating a block of the unauthorized network traffic at the firewall in response to the automatic determination.

The invention discloses a virtual disk-based file protection system. The system comprises an outgoing manufacturing module, an outgoing packaging module and an outgoing executive module, wherein the outgoing manufacturing module is positioned at a transmitting end and used for compressing and encrypting outgoing files to acquire an outgoing encrypted file set and setting the using right of the outgoing files to acquire an outgoing right control file; the outgoing packaging module is positioned at the transmitting end and used for packaging the outgoing encrypted file set and the outgoing right control file to generate executable outgoing packaged files; and the outgoing executive module is positioned at a receiving end and used for verifying the outgoing right control file in the executable outgoing packaged files, decrypting and decompressing the outgoing encrypted file set to a virtual disk which is generated by an outgoing virtual disk driving module to acquire the outgoing files if the outgoing right control file passes the verification, and stopping operation if the outgoing right control file does not pass the verification. The protection level is improved by the virtual disk, and the outgoing files are easy to make, so that users can easily and conveniently use the virtual disk-based file protection system.

The invention discloses an electric coupler for reconnecting motor train units. The electric coupler is characterized in that support assemblies and rotary shafts are respectively arranged on two sides of a shell, the support assemblies are structurally identical to each other, two protecting cover assemblies are respectively mounted on the two sides of the shell and are respectively in running fit with the support assemblies and the rotary shafts, an insulator is mounted at the bottom of the shell, a plurality of contact element mounting holes are formed in the insulator, contact elements are mounted in the contact element mounting holes, a middle cover is mounted on the surface of the insulator, a rubber sealing ring is arranged at the edge of the insulator, a groove is formed in each support assembly, an upper roller is mounted at the upper edge of each groove, a lower roller is mounted at the lower edge of each groove, hinge pins are mounted on the protecting cover assemblies, coil springs and handles are arranged on the hinge pins, the handles are in running fit with the lower rollers, rotary mounting holes which are used for being matched with the rotary shafts are formed in the handles, and barriers are arranged on the coil springs and are in running fit with the upper rollers. The electric coupler has the advantage that the insertion reliability and the transmission reliability are effectively compatible with each other.

A technique for identifying reply mailer computer program viruses detects whether a reply message is generated in less than a threshold reply time and whether or not the reply message includes an attachment. The generation of a reply message in less than a threshold reply time and including an attachment is deemed indicative of an infected reply message and accordingly that message will be quarantined, deleted, disinfected or the like. The mail server using the present technique maintains a temporary log of email messages sent indicating the sender, the recipient, and the time of sending. This log is used to identify replies and determine whether or not those replies have been received in less than the reply threshold time.

A protective motorcycle impact cage is provided, comprising a rear bumper, a rear bar, a passenger bar, a left upright rear shoulder bar, a right upright rear shoulder bar, a waistline bar, a bottom brace, a left top brace, a right top brace, an operator bar, a left side bar, a right side bar, a front bumper, a left front shoulder bar, and a right front shoulder bar. The protective motorcycle impact cage has particular utility in connection with protecting a motorcycle operator and passenger in a collision with a vehicle from any direction.

The invention provides a design of solid-state storage equipment capable of remote safe destruction. A safety strategy control module MCU is arranged in the solid-state storage equipment, and is connected with the following modules: 1) a clock and a serial port, 2) a SATA control module, 3) a GSM module, and 4) a power module control module, wherein the real-time clock is externally connected to provide clock signals for the MCU, and a serial port end is reserved for data communication between the MCU and the outside and code downloading; the MCU is connected with a SATA main controller through an IO port to provide relevant trigger signals for the SATA main controller, so that the main controller can execute corresponding plug-pull and disassembly prevention self-destruction actions, andsend feedbacks on completion of the destruction after the destruction is completed; the GSM module is used for executing a remote destruction command and designing relevant logic commands; and the MCUfurther controls system power operation and carries out power switching for operation in different modes. The design provided by the invention has the advantages that complete creation based on the GSM channel safe encryption technology is achieved, so that the key protection level is improved, the requirement of network channel encryption efficiency during daily use is satisfied, and the risk ofdata leakage during GSN network transmission is eliminated.

The invention discloses a numerical display measurement device for measuring, including a large number measuring amount device, of which the measure range is the measure range of the whole numerical display measurement device. The large number measuring amount device can roughly divide the measure range of the whole numerical display measurement device into a plurality of small measure sections and can calibrate the position of every small measure section onto every small measure section one by one. The invention also includes a small number measuring amount device, of which the measure range is larger than the largest small measure section. The invention still includes a calculation device, which calculates the total measuring result according to the measuring amounts of the large number measuring amount device and the small number measuring amount device. The invention is best suitable for being used in a numerical display scale. The large number measuring amount device of the numerical display scale is a capacitance sensor for sensing the depths of varied deep grooves, which are solidified in the scale with same intervals. The small number measuring amount device of the numerical display scale is a percent meter for sensing the moving distance of a scale frame clamping jaw within the intervals of the grooves. The invention divides the measuring amount into large numbers and small numbers for accumulation account, which makes the absolute measurement realized.

The invention discloses a pressure anti-explosion decompression balance valve utilizing a small-sized battery pack. The pressure anti-explosion decompression valve comprises an anti-explosion valve main body, wherein the anti-explosion valve main body is of a hub-type frame structure, a straight-through hole stacked blocking transverse plate structure is arranged inside the hub-type frame structure, the side surface of the blocking transverse plate structure is provided with a protection steel sheet, the interior of the protection steel sheet is of a circular-hole or an arc ventilation straight-through hole structure, a waterproof ventilation membrane is arranged between the anti-explosion valve main body and the protection steel sheet in a fitting manner, the inner wall of the hub-type frame of the anti-explosion valve main body is provided with a sealing strip in a buckling manner, and the outer wall of the hub-type frame of the anti-explosion valve main body is provided with an anti-explosion cover in a buckling manner. The pressure anti-explosion decompression balance valve utilizing the small-sized battery pack has the characteristics of high safety performance, convenience in use, low cost, good air tightness, excellent protection performance, good water resistance and convenience in detection.

A filler coupling comprising an isolation valve that can move relative to a seat between an upstream closing position and a downstream opening position, said isolation valve being moved to its upstream position by a return member, the coupling also comprising a dust-prevention valve placed upstream of the isolation valve, said dust-prevention valve comprising a downstream end and being able to move relative to the body between an upstream closing position and a downstream opening position, said dust-prevention valve being moved to its upstream position by a return member, characterized in that the dust-prevention valve can be moved selectively downstream either:

in a first determined downstream position opening the upstream end in which the downstream end of the dust-prevention valve does not push the upstream end of the isolation valve, or in

a second determined downstream position opening the upstream end, in which the downstream end of the dust-prevention valve pushes an upstream end of the movable isolation valve in order to move the isolation valve by contact to its downstream open position, and in that the dust-prevention valve comprises one or more passageways for guiding at least a portion of the fluid stream traveling from upstream to downstream through the body of said dust-prevention valve.

The invention provides a cabinet body of a low-voltage power distribution cabinet for boats and belongs to the field of cabinet bodies of electrical equipment. The cabinet body comprises a cabinet body frame, a front door plate, a rear seal plate, a top seal plate, a bottom seal plate and a side seal plate and is characterized in that: the cabinet body frame comprises a pair of frames and four longitudinal beams; the pair of frames are arranged opposite to each other and in parallel and are connected through the longitudinal beams; each frame comprises two transverse beams and two vertical columns; the transverse beams and the vertical columns adopt sectional materials with the same structure and are assembled into a rectangular frame; a waterproof folding edge is formed on the inner frame of the frame; a first U-shaped groove is formed on the outer frame of the frame; each longitudinal beam comprises a first folding edge; a second folding edge is formed on one side of the first folding edge; a third folding edge is formed on the other side of the first folding edge; a second U-shaped groove is formed on the other side of the second folding edge; a third U-shaped groove is formed on the other side of the third folding edge; and angle seam sealing pieces are arranged four corners, connected with the longitudinal beams, of the frames. The cabinet body has the advantages of high integrated strength, high weather resistance, high protection grade, high generality and convenience for assembling and disassembling.

The invention relates to an automatic change-over switch for two power sources. The automatic change-over switch comprises a control circuit board, a main breaker, an auxiliary breaker and a busbar device into which an A-phase copper bar, a B-phase copper bar, a C-phase copper bar and an N-phase copper bar are inserted in a connecting mode, wherein the busbar device is fixed inside an installation base. Two adjusters at the switching-on positions and a motor are fixed on a motor bracket, a driving rotary table to which an instrument part is connected in a riveting mode is clamped to a rotating shaft of the motor, two sliding arm guiding blocks are inserted to two pairs of inserting grooves of the sliding arm guiding blocks respectively, four sliding block sliding guiding rods are placed on two sliding block brackets respectively, and each sliding block bracket is provided with a sliding block in a buckling mode, wherein guiding columns are fixed on the sliding blocks. Sliding arms are placed on the two sliding arm guiding blocks and the two sliding blocks, the instrument part is arranged in rectangular holes of the sliding arms, the two guiding columns are arranged inside V-shaped strip holes of sliding arm faces, a mechanical switching-on indicator is fixed on the faces of the sliding arms, and a controller cover, a breaker cover and an installation bottom plate are fixed on the front face and the bottom face of the installation base respectively, wherein the controller cover is provided with an isolation electric lock. The automatic change-over switch has the advantages of being compact in overall structure, high in protection level, reliable and low in cost.

A device for positioning and holding a key in a container including a cover and a casing. The device includes an opening/closing mechanism enabling the cover and the casing to be mobile in relation to each other at least in rotation, about a rotational axis, between an open position providing access to a housing of the container and a closed position. The device also includes a locking/unlocking mechanism of the cover and the casing, at least in a closed position, comprising a locking/unlocking control device which is mobile in translation following a translation axis.

The invention discloses a sensor, and particularly relates to a non-contact annular magnetoelectric rotary encoder. The encoder comprises an annular encoder main body I, and an acquisition head II which is arranged correspondingly to the annular encoder body I, wherein a clearance is formed between the annular encoder main body I and the acquisition head II, the annular encoder main body I comprises a bearing ring body, a magnetic ring stuck and sleeved on the upper edge part of the bearing body, and a protecting cover arranged outside the bearing ring body and the magnetic ring and playing a role of protecting the magnetic ring; and a magnetic induction chip is arranged in the acquisition head II. The magnetoelectric principle is adopted by the encoder; the defects of easiness in cracking of a code disc, high requirement on precision, complex mechanical structure, complex mounting and adjusting process and the like of the traditional photoelectric encoder are overcome; the generation, the receiving and the processing of a signal are realized by selecting and using a magnetoelectric integrated chip; the complex debugging process of the traditional photoelectric encoder is omitted; the production efficiency and the performance of products are greatly improved; and the non-contact annular magnetoelectric rotary encoder which is small in size, high in reliability, resistant in vibration, high in frequency response, low in cost, high in precision, low in error and long in service life is provided.

The invention discloses an electronic locking device. The electronic locking device comprises a shell, a power mechanism arranged in the shell, a transmission mechanism, a spring bolt sliding block, afeeding screw rod, a self-locking elastic piece, a reset mechanism and an unlocking action mechanism, wherein the power mechanism, the transmission mechanism, the spring bolt sliding block, the feeding screw rod, the self-locking elastic piece, the reset mechanism and the unlocking action mechanism are arranged in the shell. A locking mechanism provided by the invention is ingenious in concept, the transmission mechanism is ingenious in matching, the safety in a normal state is high, manual unlocking can be effectively prevented, and when emergency manual unlocking is needed, the transmissionmechanism of the electronic locking device can be safely and reliably unlocked; the electronic locking device is high in process integration level, higher in process automation degree, low in cost and higher in protection grade, compared with an former similar product, the structure is simple, the appearance size is small, the cost is low, and a high protection grade can be met; according to theelectronic locking device, the problems that a spring bolt is easily pulled out and the manual unlocking operation is partially followed are solved, and the system misjudgment probability in the charging and locking process is reduced, and the problem that manual unlocking mechanism with internal parts of an automobile body is interfered due to the rotation of an operation handle at the tail end of the manual unlocking mechanism when electric locking and unlocking at each time is avoided.

The invention discloses an operation mechanism of a circuit breaker. The operation mechanism of the circuit breaker comprises a toothed turnplate, a transmission block, a transmission mechanism and a circuit board, the toothed turnplate is arranged between the transmission block and the circuit board, the toothed turnplate comprises an arc-shaped groove, a hollow round hole, an inductor and two protruding blocks, the arc-shaped groove is located between the two protruding blocks, the inductor is arranged at the upper ends of the protruding blocks of the toothed turnplate, the inductor and the protruding blocks are located on two sides of the toothed turnplate respectively, the transmission block is provided with an installation rod, a first boss and a second boss, the installation rod is located at the center of the transmission block, one end of the installation rod penetrates through the round hole and is movably matched with the round hole, the other end of the installation rod is fixedly matched with the transmission mechanism, the second boss is provided with a groove, and the circuit board is provided with sensors. The operation mechanism is integrally linked with the circuit breaker, the product mechanism is in a completely closed state, and meanwhile the height of a product is not increased; the toothed turnplate is adopted for driving the transmission mechanism of the transmission block, and the structure is simple; the sensors are adopted for detecting the running position of the operation mechanism, and the size of the operation mechanism is reduced.

The invention discloses six-station flexible processing equipment and a method for processing a work piece. The processing equipment comprises a turntable seat (7) which is arranged on a fixed base, a rotatable round turntable (8) which is arranged on the turntable seat, as well as a loading and unloading station (1), a face milling station (2), a drilling station (3), a heavy boring station (4), a fine boring station (5) and a tapping station (6) which are arranged around the round turntable, wherein the loading and unloading station (1) is arranged on the round turntable (8), and the face milling station (2), the drilling station (3), the heavy boring station (4), the fine boring station (5) and the tapping station (6) are arranged at the periphery of the round turntable. According to the six-station flexible processing equipment and the method for processing the work piece, multiple manufacturing procedures, such as milling, drilling, boring, chamfering and tapping, can be completed under the once clamping condition, so that the manufacturing procedures are all completed, and a finished product with high product precision and good quality stability is directly obtained. The six-station flexible processing equipment and the method for processing the work piece are particularly suitable for processing large-batch small parts, in particular connecting rod type parts.

The invention discloses a virus penetration blocking operating coat film which comprises a virus penetration blocking thermoplastic polyurethane film subjected to thermal compression bonding on upperand lower surfaces of a medical non-woven fabric, wherein the virus penetration blocking thermoplastic polyurethane film comprises the following components in percentage by mass: 82-85% of thermoplastic polyurethane, 6-10% of graphene, 7-9% of nano-silica and 1-1.5% of nano-silver powder; and the thermoplastic polyurethane comprises the following preparative raw materials: 50-55 parts of polyisocyanates, 20-25 parts of polyether diol, 18-22 parts of chitosan, 15-18 parts of ethylene glycol and 4-6 parts of a stabilizer. According to the manner, the virus penetration blocking operating coat film disclosed by the invention is of a sandwich structure and has the characteristics of being excellent in virus blocking uniformity, high in protection level, excellent in air and moisture permeability, excellent in environment friendliness and the like.

A jet engine intake guard includes an engine sleeve located within the nacelle of the engine; a primary deflection screen located at a front portion of the sleeve and having a first circular frame formed of a tubular fabric member and a plurality of fiber yarn strings disposed across the diameter of the primary frame and attached to one another in a tri-axle weave pattern. The guard also includes a secondary deflection screen located behind the primary deflection screen in the direction of air flow through the engine and having a second circular frame formed of a tubular fabric member and a plurality of fiber yarn strings disposed across the secondary frame and attached to one another in a tri-axle weave pattern. The guard further includes a capture basket located between the primary and secondary deflection screens. The capture basket has a first wall located toward the primary deflection screen, a center portion and a second wall located toward the secondary deflection screen. In a preferred embodiment the entire guard is made of woven carbon fiber.

A protective brushless excitation synchronous motor includes a stator, a rotor and a frame of the host of the motor, the ends covers of two ends of the frame, a shaft and seat type bearings at two ends of the shaft, an exciting dynamo, a cooling machine and a blower at the upper part of the frame, a rectifying disc and a heater. The invention is characterized in that one of the two end covers is arranged at one side of the frame and is provided with a convex cylinder with an inner diameter larger than a shaft radius; an outer diameter smaller than the inner diameter of the convex edge of the field yoke of the rotor of the host; the magnetic poles of the exciting dynamo are arranged on the outer circle at the end part of the convex cylinder; the stator of the exciting dynamo is embedded in the convex edge of the field yoke of the rotor of the host corresponding to the magnetic poles of the exciting dynamo; the magnetic field of the magnetic poles of the exciting dynamo and the magnetic field of the host are not interfered mutually; the rectifying disc, namely a rectifying module is mounted in the same disc body with a de-excitation resistance; the disc body is mounted on the rotary shaft in the frame at the other end of the exciting dynamo. The invention changes concepts that a stator of a traditional AC motor is externally mounted and static while a rotor is internally arranged and rotable; the host of a brushless synchronous motor and the exciting dynamo are integrated as a body, thus greatly reducing the size of the motor, decreasing the manufacture and maintenance cost of the motor and improving the safety and reliability of the motor.

The invention discloses a pneumatic car arrester which comprises a mounting bracket, fixed axes, car arresters, a reverse connecting rod, a cylinder, an electromagnetic valve and an electric control box, wherein the mounting bracket is arranged below a track, the fixed axes are arranged on the mounting bracket at two sides of the track, respectively provided with one car arrester, and movably connected with the car arresters, one end of one car arrester is connected with the cylinder, one end of the other car arrester is connected with the cylinder by virtue of the reverse connecting rod, andthe electromagnetic valve is arranged on a pipeline between the cylinder and the electric control box. The pneumatic car arrester can be used for overcoming the defects of the prior art, is convenient to maintain, low in cost, convenient to operate and manage and reliable for running, and has good industrial application prospects.

Provided is a three-level lightning prevention module based on internet access protection. A first level lightning prevention system is located on an RJ45 interface side of an input side, and comprises four gas discharge tubes which are located between differential data lines and are connected in parallel. A second level lightning prevention system is located on an isolation transformer, and a wire is pulled out from a central tap of each winding of the isolation transformer to be connected to the ground by being connected with a voltage dependent resistor in series. A third level lightning prevention system A is also located on the isolation transformer, and a wire is pulled out from the central tap of each winding of the isolation transformer to be connected to the ground by being connected with an inductor and a bipolar transient voltage suppressor in series in sequence. A third level lightning prevention system B is located on the isolation transformer and is divided into four protective sets, and each protective set comprises a rectifier bridge and a one-way TVS connected with the rectifier bridge in parallel. The three-level lightning prevention module of the internet access protection has the advantages that the protection level is high, TVS junction capacitance is processed ingeniously, signals are not decayed, response time and flow of all components are utilized reasonably, and multi-level protection is formed.

The invention relates to integrated protective clothing with ventilation and filtration functions. A sealing hood integrated with a protective clothing body is arranged at the top of the protective clothing body; a transparent observation window is arranged at the front part of the sealing hood; a waist double-layer connecting body is arranged at the waist part of the protective clothing body; a waist closing pull rope with two exposed ends is arranged in the waist double-layer connecting body, a windproof zipper is arranged above the waist double-layer connecting body on the back face of theprotective clothing body, and ventilation filtering devices communicated with the interior of the protective clothing body are arranged above the waist double-layer connecting body on the two sides ofthe windproof zipper. Integral operation of the product is convenient, and work and operation efficiency are high; the protective clothing is high in safety coefficient, high in protection level, convenient to wear and take off, smooth in air circulation, obvious in ventilation effect, wide in application range, capable of effectively preventing external bacteria and viruses from entering and taking off only by oneself, capable of preventing waste gas pollution of the body of a user and reducing discomfort caused by internal sweat, tight in sealing and good in social and economic benefits.

The invention belongs to the technical field of motor speed regulation, and in particular to a switch reluctance machine sensor redundancy system and an automatic switching method. The switch reluctance machine sensor redundancy system is characterized by comprising a magnet ring supporting member connected with a motor shaft, a magnet ring fixed to the magnet ring supporting member, a plurality of sensor plates located on the periphery of the magnet ring, an interface circuit board connected to the plurality of sensor plates through signal lines, Ns Hall sensors disposed on the sensor plates,signal output interfaces I disposed on the edges of the sensor plates, two signal input interfaces I disposed on both edges of the interface circuit board, and a signal output interface II disposed on the interface circuit board, wherein the signal output interface II is connected with a motor control board. The switch reluctance machine sensor redundancy system provided by the invention has a simple connection with the outside world, high anti-interference ability and small error, is suitable for use in harsh environments, can realize an automatic switching function of faulty sensors, and prolongs the trouble-free running time of a speed regulating system.

The invention discloses a low-voltage combined switch cabinet, which comprises a cabinet body and a framework. Separator plates are arranged in the cabinet body to divide the interior of the cabinet body into a bus chamber, an instrument chamber, a cable chamber, a switch chamber and a function unit chamber. The switch chamber is defined is composed of a stationary unit, a mobile unit, a plug-in unit and a drawer-type unit. Each chamber is provided with a cabinet door. Each cabinet door is rotationally connected with the framework via a zinc-plated rotation shaft type hinge. Each cabinet door is provided with a mechanical interlocking means. The folding edge of each cabinet door is provided with is additionally provided with a rubber sealing strip. Compared with the prior art, the above low-voltage combined switch cabinet can be applied in the fields of power plants, petrochemical industry, metallurgy, power supply for high-rise buildings and the like. The low-voltage combined switch cabinet serves as a power supply system, wherein the three-phase alternating current frequency thereof is 50 Hz/60 Hz, and the rated operating voltage thereof is 380 V/660 V. the low-voltage combined switch cabinet is high in breaking capacity, good in dynamic thermal stability, flexible in electrical solution, convenient in combination, strong in seriation and practicality, novel in structure, and high in protection level.