66results about How to "Extended functional life" patented technology

The present invention relates to automotive heat exchanger assemblies that can withstand high environmental temperature and pressures conditions. By providing for a tube strengthener into the tubes at the areas of highest stress, the heat exchanger assembly is strengthened to be efficient under typical operating conditions

Methods and compositions are provided for the therapeutic use of Wnt proteins, for enhancing bone growth and regeneration, including repair following injury, osseointegration of implants, and the like. In some embodiments of the invention, the compositions are administered locally, e.g. by injection at the site of an injury. For certain conditions it is desirable to provide Wnt activity for short periods of time, and an effective dose will be administered over a defined, short period of time.

Insertable medical articles with a shape memory property having a body member formed of crosslinked hydrophilic polymers are described.

A fluidic actuator includes a central elastic tube with an interior bore and a surrounding sheath formed of braided fibers. End fittings are attached to the tube and sheath at first and second ends thereof and include a cap with a hollow cavity into which an end section of the tube and sheath are inserted and embedded in a hardened adhesive. The hardened adhesive seals off the ends of the tube and strongly bonds the fibers of the sheath to the end caps to provide strong mechanical connections. A fluid coupling may extend through one of the end caps to connection to an end of the tube, with an interior bore in the coupling in communication with the bore in the tube to allow fluid under pressure to be supplied to the interior of the tube. A liquid lubricant may be held in the fibers of the sheath to provide lubrication between the elastic tube and the fibers of the sheath to reduce wear and abrasion of the tube and extend the service life of the actuator.

The present invention relates to a load and moment sensor for a prosthetic device detecting load in a single direction and moment in a single plane. The load and moment sensor includes a sensing element, and a plurality of strain gauges placed in specific locations of the sensing element. The plurality of strain gauges is part of a plurality of resistor circuits such as Wheatstone bridges. While the strain gauges can be located on a single sensing element, some resistive elements of the Wheatstone bridges can be located elsewhere on the prosthetic device. The combination of the location of the strain gauges and the use of the Wheatstone bridges allows for good side load rejection which is load and moment not in the single direction or the single plane.

The invention discloses tea polyphenol cellulose fiber which is composed of, by weight, 5-10% of tea polyphenol and 90-95% of cellulose, wherein the tea polyphenol is grafted on the cellulose through a coupling agent. A preparation method of the tea polyphenol cellulose fiber includes following steps: (1), preparing tea polyphenol pretreatment liquid: preparing a tea polyphenol water solution of 10-20% in mass fraction, adjusting pH value of the tea polyphenol water solution to 4-5, heating the tea polyphenol water solution to 70-80 DEG C, dropwise adding a silane coupling agent, increasing temperature of a system to 100-130 DEG C after dropwise adding is finished, maintaining reaction for 8-10h, adjusting pH value of reaction liquid to 7-8 to obtain the tea polyphenol pretreatment liquid, and cooling to room temperature for standby use; (2), performing viscose grafting treatment: adding the tea polyphenol pretreatment liquid into viscose, sufficiently mixing, entering a ripening intermediate bucket constantly maintained in a stirring state, and maintaining reaction for 30-36h to obtain tea polyphenol pre-grafting viscose; (3), directing spinning, washing and drying the tea polyphenol pre-grafting viscose obtained in the step (2) to obtain the tea polyphenol cellulose fiber.

A stiffener-reinforced microelectrode array probe and fabrication method using wicking channel-distributed adhesives which temporarily adheres a flexible device onto a rigid stiffener for insertion and extraction. Assembly is by dispensing a liquid adhesive into a narrow open groove wicking channel formed on the stiffener so that the adhesive is wicked along and tills the channel by capillary action, and adhering the adhesive-filled bonding side of the elongated section of the rigid substrate to a flexible device.

A rake wheel includes a hub and a plurality of tines connected to the hub and extending outwardly therefrom to an annular rim concentric with the hub. Each tine is journaled through a first plurality of apertures formed in the rim and projects outwardly from the rim. A second plurality of apertures is formed in the rim, having a size and shape substantially the same as the first plurality of apertures, and will receive the tines when the first set of apertures becomes worn or otherwise ineffective.

A permeable reactive weir having at least one outer wall which defines a chamber that holds reactive filter media.

Methods, systems, and compounds for degrading chlorinated compounds in water. A facile aqueous-based surface treatment of zero-valent iron is provided to increase the reactivity of a zero-valent iron material for degrading chlorinated compounds in the water without the use of a noble metal catalyst. Such a facile aqueous-based surface treatment can be implemented as a surface sulfidation pre-treatment of iron to increase its reactivity towards chlorinated contaminants in water. The disclosed facile aqueous-based surface treatment increases reactivity utilizing sulfur compounds for use in the degradation of the chlorinated compounds in the water.

The invention relates to the technical field of medical instruments, in particular to a woven-mesh-shaped valve repair clamp which comprises a woven mesh clamp, a valve clamp, a top seat and a base, wherein woven mesh clamp is of a woven mesh structure, has elasticity and comprises an abutting column with a columnar top and two clamping strips extending symmetrically from the bottom of the abutting column; filler is wrapped in the abutting column, and the top of the abutting column is connected with the top seat; the front sections of the clamping strips are bent upwards from the extending position of the abutting column to form a clamping surface of the woven mesh clamp with the abutting column, and the rear sections of the clamping strips are bent reversely and extend to be connected tothe base; and the valve clamp is fixed in the clamping surface of the woven mesh clamp. According to the woven mesh valve repair clamp, the overall weight of the clamp is reduced through integrated weaving of the woven mesh clamp, so that the clamp is not prone to being damaged and losing functionality, the preparation process is simple, more excellent tensile and anti-fatigue capacity is achieved, the functional life of a valve is prolonged, the clamp is beneficial to long-term health of a patient, and the success rate of an operation and the convenience of the operation are improved.

Provided herein is a method of treating, preventing, or managing osteolysis in a subject, comprising administering to the subject a therapeutically effective amount of vitamin C, or a pharmaceutically acceptable salt, solvate, or hydrate thereof, in combination with vitamin K, or a single enantiomer, a mixture of enantiomers, or a mixture of diastereomers thereof, or a pharmaceutically acceptable salt, solvate, or hydrate thereof.

The present invention belongs to the technical field of protecting single-phase grounding short-circuit which results from insulation failure of single-phase and three-phase power consuming equipment in a low-voltage power network, and in particular relates to a current-limiting, arc-eliminating and excitation-dividing tripping type grounding short-circuit protection device. The technical proposal consists of a circuit breaker actuating device, a circuit breaker starting mechanism, and a short-circuit detection actuating mechanism. Because the current or voltage signals which are used for actuating the protection device is not related to the short-circuit current of the original grounding short-circuit loop, the protection device solves the problem of dependence on the fuse for the grounding short-circuit failure in the long term and the problem that the short-circuit switch with current as a parameter can not easily generate the maximum allowable temperature rise (igniting fire) in the loop wire within the protective range, and in particular in the terminal insulating wire of the power consuming equipment, so as to timely cut off the circuit.

The invention discloses a copper and aluminum forging and pressing mechanical device with protective performance, and relates to the field of technology forging and pressing mechanical devices. A baseis included; the left side of the top of the base is fixedly connected with a shock absorbing pad, and the top of the shock absorbing pad is fixedly connected with a fixed base; the top of the surface of the fixed base is sleeved with a forging and pressing base, and the top of the forging and pressing base is fixedly connected with an anti-explosion glass cylinder; and the front side of the anti-explosion glass cylinder is connected with a movable cover in a clamped manner. According to the copper and aluminum forging and pressing mechanical device with the protective performance, the anti-explosion glass cylinder is matched with the movable cover, the top of the forging and pressing base can form a closed space, it is avoided that during forging and pressing, high-temperature oxidization layer fragments are scattered everywhere and consequently people are scalded or clothing and other articles for daily use are damaged, and a safety protection effect is achieved; a slide groove is matched with a slide rod frame, a clamping plate can rotate to press the movable cover, and it is avoided that in work, the movable cover gets loose; and a vacuum noise lowering cavity is formed in theanti-explosion glass cylinder, noise during forging and pressing can be greatly lowered, and therefore the work environment is improved.

The invention discloses a wheel hub unit. The wheel hub unit comprises a wheel hub body, a shaft sleeve and a bearing. A first sealing ring and a second sealing ring are arranged between the sealing face of the wheel hub body and the sealing face of the shaft sleeve. The inner side of the first sealing ring is a sealing zone and the outer side of the second sealing ring is an atmosphere zone in the axis direction. An oil-storing cavity is formed among the sealing face of the wheel hub body, the sealing face of the shaft sleeve, the first sealing ring and the second sealing ring. An oil filler hole is formed in the wheel hub body. A screw-plug is arranged on the oil filler hole. According to the oil fluid microcosmic motion principle, the functional life of lubricating oil is prolonged; sealing lips of the sealing rings can maintain lubricating oil films; even through one sealing ring is invalid, the other sealing ring can still play a sealing function, so that the service environment of the sealing rings is improved, the service life of the sealing rings is prolonged and the sealing rings are convenient to disassemble.

The invention relates to lubricant additive compositions and lubricant compositions each comprising thiophosphates and thiophosphate derivatives, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines.

The invention discloses a mobile number attribution inquiry updating method without an updating program of a mobile terminal, which is characterized in that the mobile number attribution inquiry updating method comprises the steps: a acquiring a binary file manufactured according to the latest number segment attribution distribution from a network or other ways, wherein the file comprises a configuration information file header, a 6-digit number index, a 7-digit number index, an 8-digit number index and attribution name blocks; b reading the file header and acquiring configuration information; and c obtaining attribution contents in file content blocks via the configuration information. The invention has the advantages that when the number segment is updated, the mobile terminal does not need updating program, but only needs to renew the inquiry file to continue the number attribution inquiry function, and thereby the users are facilitated and the functional service life of the mobile terminal is prolonged.