397results about How to "prevent leakage" patented technology

Apparatus and methods for endoscopic colectomy are described herein. A colectomy device having a first and a second tissue approximation device is mounted on a colonoscope separated from one another. During deployment of the colectomy device, a diseased portion of the colon is positioned inbetween the tissue approximation devices. The tissue approximation devices are radially expanded such that they contact and grasp the colon wall at two sites adjacent to the diseased portion of the colon. The diseased portion is separated from the omentum and is transected using a laparoscope or is drawn into the colonoscope for later removal. The tissue approximation devices are then urged towards one another over the colonoscope to approximate the two free edges of the colon into contact together where they are fastened to one another using the tissue approximation device as a surgical stapler to create an end-to-end anastomosis.

The present invention provides an electrolyte membrane-gasket assembly for a fuel cell, including a polymer electrolyte membrane and a gasket, made of a seal material, covering the peripheral portion of the electrolyte membrane, in which the electrolyte membrane has a sequence of a plurality of through-holes in the peripheral portion, and a portion of the gasket covering one surface of the electrolyte membrane and a portion covering the other surface are connected to each other through the through-holes of the electrolyte membrane. This assembly provides a polymer electrolyte fuel cell that is free from gas cross leakage caused by a detachment of the gasket from the polymer electrolyte membrane. It is preferable to further include catalyst layers carried on both surfaces of the polymer electrolyte membrane, respectively, and protective films covering, respectively, sections spanning from the peripheral portion of each of the catalyst layers to the peripheral portion of the polymer electrolyte membrane.

Disclosed herein are a tube-type porous scaffold having a double-layered structure for use as an artificial vascular graft and a preparation method thereof. The method comprises (1) dissolving a biodegradable polymer in an organic solvent and mixing the polymer with a porogen so as to provide a polymer/porogen mixture; (2) coating a cylindrical shaft with the polymer/porogen mixture so as to form an inner porous coating layer; (3) preparing a biodegradable polymer gel by dissolving a biodegradable polymer in an organic solvent; (4) spinning down the biodegradable polymer gel in a non-solvent coagulation bath in which the cylindrical shaft having the inner porous coating layer, obtained at step (2), is immersed and rotated to form gel-phase fibers and allowing the gel-phase fibers to wind around the inner porous coating layer of the rotating shaft so as to form an outer polymer fibrous layer; and (5) separating the double-layered porous scaffold, formed on the shaft, from the shaft and removing the organic solvent and the porogen from the scaffold. Since the porous scaffold has a double-layered structure consisting of an inner porous coating layer containing micropores and a gel-phase outer polymer fibrous layer, it has high pore interconnectivity and mechanical strength, which effectively prevents the leakage of blood, and has high cell seeding and proliferation efficiencies, thereby being useful as a tissue-engineered artificial vascular graft.

Disclosed is a sealing detection mechanism for detecting sealing of a closure fastened to a container having a top open end. The sealing detection mechanism includes a RFID tag mounted at a selected position of the closure, at least one operable tear portion formed at the closure, and at least one conductive unit electrically connected to the RFID tag and extended from the RFID tag to the closure to form a conductive circuit loop across the operable tear portion of the closure. A sealing guarantee device mounted is selectively mounted between the top open end of the container and the closure, which includes an upper portion, a lower portion, and a middle portion connected between the upper portion and the lower portion. The lower portion of the sealing guarantee device is provided with an annular flange protruding downward from the lower portion and a hollow portion between the lower portion and the flange.

A security method and system using a touch screen that allows manipulation input using only an input tool which is not part of a user's body, i.e., finger manipulation, when a secure function such as secure printing is set instead of a normal function when the touch screen is manipulated, so as to prevent leakage of secure information due to fingerprint marks and smudges caused by finger manipulation. The security method includes checking whether or not a password is input, and inputting to the touch screen a password using an input tool which is not part of a user body.

Access point 20 starts the WEP key setting process by working registration button 127A of remote controller 30. The range reached by the electric waves transmitted from access point 20 is changed from wireless communication area AR1 which is the normal range to security communication area MR1 which is a narrower range. After that, access point 20 delivers the used WEP key to terminal 50, and after confirming delivery, registers the MAC address of terminal 50. Terminal 50 sets the delivered WEP key itself. As a result, it is possible to realize with a simple method the new addition of terminals used for a wireless LAN while preventing leaking of data that represents the encryption key.

Disclosed is a gutter cover comprising a elongated member adapted to fit over an existing gutter having a plurality of perforations to permit water flow and prevent clogging of the gutter with debris. The gutter cover has two raised areas on its surface to create three channels for water flow. The gutter cover can be fastened to a gutter without fasteners.

An integrated circuit structure comprises a bottom dielectric layer on a substrate, a middle dielectric layer, and a top dielectric layer. The middle dielectric layer has a top surface and a bottom surface, and comprises a plurality of materials. Respective concentration profiles for at least two of the plurality of materials between the top and bottom surfaces are non-uniform and arranged to induce a variation in energy gap between the top and bottom surfaces. The variation in energy gap establishes an electric field between the top and bottom surfaces tending to oppose charge motion toward at least one of the top and bottom surfaces and prevent resultant charge leakage.

The invention relates to modular heat-dissipating housing covers for opto-electronic modules, e.g. transceivers. The housing covers according to the present invention are constructed out of various different parts, which provide different levels of heat dissipation depending on the desired implementation, while maintaining a seal against EMI leakage. Extra heat sinking portions are provided to dissipate heat generated from specific heat generating sources. The extra heat sinking portions are configured into a shape and/or out of a material that provides more thermal dissipation than the standard cover provided. Independent control over the different heat sinking portions enables a better fit and appropriate dissipation.

An absorbent article for an animal has an interior surface for facing the animal and an exterior surface opposite the interior surface. The absorbent article includes an abdomen part for facing the abdomen of the animal and a back part for facing the back of the animal. Two engaging members, which are capable of being removably secured to the exterior surface of the back part, are provided on each side of the abdomen part and spaced apart from each other in a longitudinal direction along which the abdomen and back parts are arranged.

A cell module has a cell group with a plurality of cells connected to each other. The module comprises a bus bar plate including a bus bar connecting between the cells and an end cover for covering the bus bar plate. The cell module is configure to be fixed with the end cover.

A compressor housing defines a motor accommodating chamber. The pressure in the motor accommodating chamber is equal to the pressure in a suction chamber. A first reservoir chamber is located in a discharge chamber. A second reservoir chamber is defined about the discharge chamber. A communicating passage connects the first reservoir chamber with the second reservoir chamber. A restrictor is located in the communicating passage. An oil return passage connects the second reservoir chamber with the suction chamber. A connecting passage connects the motor accommodating chamber with the suction chamber. Therefore, leakage of electricity is prevented.

System for containing liquid introduced onto a reusable load-supporting surface includes a plurality of interconnectable berm members configured to releasably sealingly engage the load-supporting surface to prevent leakage of liquid from the load-supporting surface around its perimeter without the use of any liners beneath the load-supporting surface.

A cowl structure including a cowl box having a partition panel joined to both rear and bottom walls thereof inside the cowl box. The partition panel constitutes, together with the rear and bottom walls, a hollow member portion extending in a vehicle width direction. An outside air introducing port is provided in the cowl box, for introducing outside air into the cowl box outside of the member portion. A communication port is provided in the partition panel, for allowing the inside and outside of the member portion to communicate with each other inside the cowl box. An air supplying port is provided in the rear wall at a location spaced upward from the bottom wall, for allowing the inside of the member portion and a vehicle compartment to communicate with each other. The communication port and the air supplying port overlap each other in the vehicle width direction.

The invention discloses a method and a system for protecting user privacy. The method includes the following steps of: S1, a user opens a privacy setting page; S2, the user sets the access right of the information content through the privacy setting options on the privacy setting page; S3, a server stores the privacy setting information in a database; S4, the server reads the user information content from the database for user-side display based on the user privacy setting. The method and the system for protecting the user privacy can control the flow direction of the user private information, thus avoiding the disclosure of the user private information, effectively guaranteeing the user rights, and reducing the disputes between the user and a social website.

Compounds are provided which can form bioabsorbable compositions useful as adhesives or sealants for medical/surgical applications.

A thrust plate for supporting a bottom end of a shaft in an axial direction is provided on a top surface of a bottom section of a bearing housing. An attracting magnet for attracting the shaft, which is made of a magnetic material, in the axial direction is provided below the thrust plate. A substantially cup shaped magnet holder is provided surrounding a periphery of the attracting magnet. The magnet holder retains the attracting magnet by a bottom section and a radial periphery surface of the attracting magnet. The magnet holder is integrally formed, by an insert molding, with the bottom section of the bearing housing.

A method for watering plants using a self-contained high pressure distribution system with a water reservoir. A mini gear pump is used for pumping water to pressure compensated drip emitters at individual plants. A method for monitoring soil moisture content and programming of individual watering of plants through an energy efficient wireless networking system. The high-pressure water in the plant watering system is used as a communication physical channel for the wireless networking for improving wireless communication range and battery life of wireless terminals. Chip-level Differential Encoding based Spread Spectrum signaling is used for reducing wireless networking solution cost, improving wireless link budget, improving immunity to interference, and increasing battery life of wireless terminals.

The invention provides an agent method and an agent system for connecting databases. The method comprises the following steps that: an agent server receives a service request sent by a service server and connects the service server to the databases in a database server corresponding to the service server; the agent server acquires an importance parameter of each database according to a unit time inquiry transmission byte number and a unit time operation number of each database; and the agent server determines the priority level of an established thread pool and distributes corresponding thread pool processing and relevant services corresponding to the databases according to the priority level of the thread pool and the importance parameters of the databases.

The composition of the invented neutral ball-pen ink contains pigment 2-10g, solvent 2-10g, pigment dispersing agent 1-20g, thickening agent 0.2-10g, water soluble rsin 1-10G, levelling agent modified polysiloxane ether 0.1-0.4g, neutralizer 2-10g, preservative carson-88 0.1-0.4g, defoaming agent SPA-102 and rust-preventing agent benzotriazole each 0.1-0.4g, and deionized water 30-70g. This invention possesses bright colour, does not dry or does not settle, can be stored for a long period, and its stability is good.

In a fluid dynamic bearing apparatus, an oil buffer is defined between a thrust gap and a pumping gap. The oil buffer has an axial dimension greater than that of the thrust gap, and/or has a radial dimension greater than that of the pumping gap. An air bubble generated in the thrust gap due to cavitation, for example, when a fluid dynamic bearing apparatus experiences a vibration can be dissolved in lubricating oil provided within the oil buffer. This prevents leakage of the lubricating oil due to the air bubble residing in the fluid dynamic bearing apparatus.

Disclosed is a tamper resistant PIN entry apparatus for input of a key and for encryption of a password in a cash transaction machine. The PIN entry apparatus supplies the electric power to a memory of an electric circuit section, in such a manner that a first rod and a second rod of a rear case connect contacts of a key scan board, wherein the first rod is protruded on the rear of a key module including a button provided substantially on the front of the key module and the second rod of the rear case is coupled with the rear of the key module. At this time, in case that the rear case is removed from the key module or damaged, thereby changing the location of any one of the first and the second rods at the contact, the electric circuit section detects the event and destroys the memory itself physically. Otherwise, the electric circuit section makes information stored in the memory physically or softwarely unreadable, thereby preventing the leakage of the information.

The invention discloses a portable bank card data processing device, system and method. The portable bank card data processing device comprises a centre processor, a touch IC (Integrated Circuit) card reader-writer which is used for reading and writing data of the inserted IC card, a radio frequency IC card reader-writer which is used for reading and writing the data of the IC card by a manner of non-touching, an IC card safety chip which is used for certifying the data of the IC card read by the touch IC card reader-writer or certifying the data of the IC card read by the radio frequency IC card reader-writer, a storage device which is used for storing the operation system, application programs and IC card transaction information, a communication encryption chip which is used for encrypting the output data and decrypting the input data, a communication model which is used for transmitting the encrypted output data of the communication encryption chip and transmitting the received input data coming from outer part to the communication encryption chip, a keyboard which is used for providing an input interface of the IC card transaction information, a displayer which is used for displaying the IC card transaction information, and a cell. The invention solves the payment information safety problem of bank cards which are applied to remote payment.

A power supply device comprises a battery assembly formed by stacking secondary battery cells having safety valves for exhausting gas, end plates being arranged at both end faces of the battery assembly in the stacking direction, a gas duct guiding gas emitted from the safety valves in a prescribed gas exhaust passage, and fixing portions fixing both ends of the gas duct to the end plates in a position where the gas duct faces the safety valves. In a state in which the gas duct is fixed to the end plates in at least one of the fixing portion a fixing opening of a slit is formed extending in the direction parallel to the direction in which the secondary battery cells are stacked, and a fixing member is inserted into the slit fixing opening.

The invention discloses a server fingerprint mimicry and sensitive information mimicry method based on a WEB security gateway. The method comprises the following steps: returning information mimicry when an attacker scans Web server fingerprint information and bug information to confuse effective information acquired by the attacker; and after the attacker finishes the attacking through the bug, performing mimicry substitution on the sensitive information acquired by the attacker through the sensitive information mimicry to prevent the sensitive information from being leaked. Compared with the traditional Web security gateway, the method disclosed by the invention can confuse the seeing and hearing of the attacker before the attacking, and can interfere the acquisition of the sensitive information after the attacking is finished; the security gateway can be flexibly configured and is transparent facing to the normal user, and has good expandability and portability.

The present invention discloses a coupling structure and a coupling method for a coupling piping of an air conditioner, capable of stably coupling a coupling piping made of cheap material such as aluminum metal. The invention includes a coupling piping, one end of which is connected with an outdoor unit and the other end is connected to an indoor unit, to guide refrigerant; a combination member, for combining the coupling piping and the outdoor unit as well as the indoor unit. Moreover, a metallic loop for preventing the refrigerant from leakage is inserted between piping connection portions of at least one of the coupling piping and the outdoor unit as well as the indoor unit, and consolidation is implemented by the combination member.

The invention relates to an identity authentication method and device based on a block chain, a computer readable storage medium and computer equipment. The method comprises the following steps: receiving a service request of a user, obtaining authorization information of the user according to the service request, searching a target block corresponding to the authorization information from a blockchain, and obtaining registration data of a user corresponding to the authorization information from the target block, calling an intelligent contract corresponding to the service request when the authorization verification is passed, executing the declared identity authentication logic by the intelligent contract, obtaining an identity authentication result based on the registration data, and feeding back the identity authentication result. For the service provider, the identity information of the user cannot be directly contacted, and the identity authentication result fed back by the blockchain can be obtained or used only on the premise of user authorization, so that for the user, the user can be prevented from directly providing the identity information of the user for a merchant, and the problem of leakage of personal information of the user is avoided from the source.

The invention discloses an audio and video monitoring device, a data encryption and decryption method therefore, and an audio and video display device, and relates to the technical field of data security. The encryption method comprises the steps that a random number generator generates a random number as a symmetric cipher; collected audio and video data is symmetrically encrypted through the symmetric cipher, thereby obtaining an encrypted audio and video file; a corresponding first identification public key is obtained from an identification public key matrix according to an audio and video display device identifier; the symmetric cipher is symmetrically encrypted by employing the first identification public key, thereby obtaining a key file; the key file is signed through a first identification private key of a local device; the encrypted audio and video file and the signed key file are integrated into an encrypted data file; and the encrypted data file is sent to the audio and video display device. The transmitted audio and video data after collection is ciphertext; the audio and video data is prevented from being intercepted, stolen and tampered; and the problems of leakage and system harm are avoided.

A convertible reusable diaper is provided, comprising an outer cover, a barrier panel portion, and at least one of a liner portion and an absorption portion. One or more first fastener members are attachable to at least one of the outer cover portion and the barrier panel portion. One or more second fastener members are attachable to at least one of the liner portion and the absorption portion, wherein at least one of the second fastener members is cooperatively engaged with at least one of the first fastener members, thereby allowing at least part of at least one of the liner portion and the absorption portion to be detachable to the outer cover portion. One or more hole-openings are formed on the barrier panel portion, thereby allowing engagement between the first and the second fastener members.

Provided is a technique that can control a federated search apparatus to prevent transmission of access account information, which is not necessary to carry out security trimming, to search servers in the execution of federated search. The federated search apparatus according to the present invention includes an account correspondence table describing a correspondence between a first access account that issues a first search request for requesting federated search and second access accounts that issue a second search request to the search apparatuses. The federated search apparatus specifies the second access account corresponding to the first access account in accordance with the description of the account correspondence table, designates, as a search condition, a range that can be accessed by the second access account, and issues the second search request to the search servers.