51results about How to "Compressed tightly" patented technology

Apparatus and methods for conditioning and pre-tensioning soft tissue grafts during joint repair surgery, such as during repair of the anterior cruciate ligament (ACL). The inventive apparatus is advantageously adapted and configured so as to enable a surgeon to independently apply a desired tensile load to individual graft strands or graft bundles of a multi-strand tissue graft. The inventive methods enable each graft strand or bundle to be properly tensioned so as to both “condition” the graft to prevent subsequent stretching, relaxation or elongation following surgery, which can destabilize the joint, and to pre-tension each graft strand or bundle to a predetermined amount so that each contributes to the strength and stability of the joint, thus resulting in a stronger and more durable joint. The tensioning device is advantageously equipped with structure for attachment to a patient's limb during the conditioning and pre-tensioning procedure. It has multiple adjustable tension applicators that can be independently manipulated so as to apply a separate tensile load to one or more ends of a tissue graft strand attached to each adjustable tension applicator.

An intramedullary fixation device having a distal section; a proximal section; a connecting member for adjustably securing the distal and proximal sections end to end along a longitudinal axis; means for securing the proximal section to a first bone; and means for securing the distal section to a least one different bone. The connecting member is rotated to provide compression across a bone arthrodesis site to be stabilized and fused. Also described is a method of utilizing the intramedullary fixation device with an outrigger assembly.

A metalcutting insert that is useful in chipforming and material removal from a workpiece The metalcutting insert includes a metalcutting insert body, which includes a cutting edge having at least one discrete cutting location. The metalcutting insert body further contains a distinct interior coolant passage communicating with the discrete cutting location. The distinct interior coolant passage has a coolant passage inlet defining a coolant passage inlet cross-sectional area, a coolant passage discharge defining a coolant passage discharge cross-sectional area, and an axial coolant passage length. The distinct interior coolant passage defines a coolant flow cross-sectional area along the axial coolant passage length thereof. The coolant passage inlet cross-sectional area is substantially the same as the coolant passage discharge cross-sectional area. The geometry of the coolant flow area changes along the axial coolant passage length.

The invention discloses an aquatic feed processing device. The device comprises a processing box, a base, a crushing box and a cut-off box; the processing box is installed on the top of the base, a punching tube is installed at the bottom inside the processing box, a feed delivery pipe is installed on the top of the punching tube, a solenoid electric valve is installed on the feed delivery pipe, aforming die is installed on one side of the punching tube, and die holes are uniformly formed in the forming die. Accordingly, by installing the crushing box, a crushing roll is installed in the crushing box, the crushing roll is driven by a motor to rotate at a high speed, raw materials such as fish bones are ground and crushed, and processing and shaping are facilitated; by arranging a feedingpipe, other organic matter is added into the crushed materials conveniently; meanwhile, by installing a stirring shaft, stirring blades are uniformly installed on the stirring shaft, and different rawmaterials are fully stirred and mixed conveniently.

A method comprising providing a hot surface, a piled fabric, and the template. The piled fabric may be placed between the template and the hot plate. A force may be applied to create pressure on the piled fabric between the hot plate and the template. Heat may be transferred from the hot surface into the template to put a permanent set in the pile of the fabric. The underside of the template may be insulated to resist sinking of heat received by the template in a direction away from the hot plate.

The invention discloses a large-scale diagram data representation method which comprises the following steps: on the basis of K<2>-tree and clustering ideas, abstracting diagram data into an adjacency matrix representation mode by using a clustering idea based on density, further performing clustering processing on the basis of adjacency matrixes, therefore, including a colony structure with a great number of elements of which the values are 1 in a cluster. As a great number of elements of which the values are 1 are included in sub-matrixes, L vectors corresponding to K<2>-tree, of all sub-matrixes, are serially connected to form a global vector global-L, and DACs (Digital-to-Analog Converter) encoding is implemented, the space occupied by each element of which the value is 1 in the represented adjacency matrixes can be effectively reduced, that is, the storage efficiency can be improved. By adopting the large-scale diagram data representation method, diagram data with hundreds of millions of nodes and edges can be efficiently and compactly represented and compressed, in addition, direct and reverse neighbor checking operation on the nodes in the diagram data can be carried out.

The invention provides a three-dimensional star-shaped alpha-helix polypeptide with high-efficiency gene delivery capability, and a preparation method and application thereof. Dendritic molecules areused as an initiator and dichloromethane is used as a reaction solvent to initiate high-speed ring-opening polymerization of different types of N-carboxylic anhydride monomers, and groups with different electric properties are introduced at the tail ends through a click chemical reaction. Rich amino groups on the surfaces of the dendrimers provide enough polymerization sites, so that the polypeptide forms a three-dimensional spherical topological structure, and meanwhile, the topological structure provides an opportunity for acceleration of the initial stage of a ring-opening polymerization reaction. The polypeptide side chain modified guanidino/amino groups and the like bring higher positive charge density, high-efficiency gene loading capacity can be obtained through electrostatic interaction between positive charges and negative charges, and an alpha spiral rigid structure on a secondary structure is enhanced, so that the polypeptide has higher membrane penetrating capacity. The polypeptide has a great development prospect in the field of biomedical materials, particularly gene delivery through properties of the polypeptide.

A piezoactuator includes a piezoelement of a multilayer construction of piezolayers, with internal electrodes arranged between the piezolayers alternately having a differing polarity of an electrical voltage applied to them. An actuator base and an actuator head and an insulation medium surrounding at least the piezolayers of the piezoelement are present. The surface of the piezoelement is provided with a first electrical insulation layer. The piezoactuator has at least one layer of a metallic film wound around it at least in the region of the piezoelement. A layer of a plastic is applied to the film and in a manner overlying the connecting locations with respect to the actuator head and with respect to the actuator base.

The invention discloses an intelligent conjoined box of a garbage truck. The intelligent conjoined box comprises compression equipment and a control cabinet, wherein the compression equipment consistsof a feed hopper and a compression channel transversely arranged on the lower side of the feed hopper; the bottom of one side of the compression channel is provided with a slag outlet, and the otherside of the compression channel is provided with a compressor; the compressor consists of a compression plate and a hydraulic device for pushing the compression plate to move; a pressure sensor is arranged between the hydraulic device and the compression plate; a sealing plate is vertically welded to the upper side of the compression plate; a cutting edge is arranged at the front end of the sealing plate; an electric slag discharge door is installed at the slag outlet; a groove is formed in the upper surface of the electric slag discharge door; a porous steel plate is laid on the groove; a check valve A is installed at an outlet of the bottom end of the groove and connected to a sewage tank through a hose; a throttle valve is installed on the hose; a negative pressure pump is installed onthe top side of the sewage tank; a drain valve is installed on the bottom side of the sewage tank; a check valve B is installed at an inlet of the negative pressure pump; and an air pressure sensor isinstalled in the sewage tank. According to the intelligent conjoined box of the garbage truck, the compression is compact, the filtrate discharge efficiency is high, the intelligent conjoined box isnot prone to blockage, and the discharging after compression is not prone to being interfered.

An exercising device includes a main body having an elongate cord and a grip, and a weight unit adjustably mounted on the cord. The weight unit includes a connecting block mounted on the cord, and a weighting block mounted on the connecting block. The connecting block has a flexible tapered mounting post and has a mounting hole. The weighting block has a tapered pressing hole pressing the mounting post. Thus, the mounting hole of the connecting block encircles the cord completely so that when the mounting post is pressed toward the cord by the pressing hole of the weighting block, the connecting block compresses the cord tightly so as to lock the weight unit on the cord of the main body.

The invention provides an extrusion device for a pelletizer. The extrusion device includes an extrusion barrel, a screw rod-type extruder and a discharging port. The extruder comprises an extrusion shaft and an extrusion blade surrounding the extrusion shaft; and the extrusion blade gradually decreases from a feed inlet to a discharge hole. The invention has the beneficial effect that the tapered extruder and the extrusion cylinder cooperate to realize tight compression on the molding material; and the cross-sectional shape of the extrusion blade makes the raw materials be easily extruded, so as to avoid blocking caused by raw materials easily adhered on the extrusion blade. The extrusion device for the pelletizer has the advantages of simple structure, convenient maintenance, low processing cost and high production efficiency.

The invention discloses a planer type milling machine with a hot knife line milling and scraping spiral scrap iron anti-splash device. The planer type milling machine structurally comprises a supporting column, a gantry beam block, a motor front end cover, a milling cutter protruding rod, an observation baffle, a separating mat alloy disc seat and a base. The milling cutter protruding rod is matched with the separating mat alloy disc seat; according to the magnetic attraction of iron, a separating mat disc is arranged on a working table plate, alloy metal molecular keys are tightly compressed,the hardness is high, and scrapping is prevented; magnet misalignment columns are inserted at four orientations of a main shaft column in an opposite-angle manner, hemispherical wrapping of a spiralmagnetic field is formed, and therefore scrap iron strips cut by a cutter on a milling machine can fly out to be attracted to the magnet misalignment columns; the whole separating mat disc is in rotary fit with the magnet misalignment columns to rotate, the compass effect of roller composition motion is formed, angle fine adjustment is used on a coordinate system to improve the machining accuracyof a workpiece, a worker can take out the magnet misalignment columns to remove the scrap iron strips in the later period, magnetic field control is formed within the scrap iron splashing scope, and the overall equipment performance is improved.

This invention relates to an illuminating tool and particularly to a headlamp that may be worn on a human head for use and may be dismantled. In a skill of this invention, the headlamp that may be dismantled comprises a fixture with a head strap, and a floodlight. The floodlight comprises a lamp body and a lamp receptacle, being characterized in that the head body and lamp receptacle of the floodlight is an all-in-one unit. The fixture mount may be dismantled from the floodlight or inserted to match with each other. In the manner, the floodlight may be taken apart from the fixture mount to serve as an ordinary flashlight for an extra use of the headlamp.

The invention belongs to the technical field of automobile induction components, and provides an automobile anti-pinch strip. The automobile anti-pinch strip comprises an anti-pinch body, a sheathed wire, a conductive connector, a front end head of the anti-pinch strip and a tail end head of the anti-pinch strip, the anti-pinch strip body is provided with a cross-section structure, the cross-section structure is composed of insulating rubber, conductive rubber and a conductive wire, the conductive rubber is wrapped with the insulating rubber, the conductive rubber is divided into upper conductive rubber and lower conductive rubber, a middle cavity is formed between the upper conductive rubber and the lower conductive rubber, lateral bending arc angles are arranged on the two sides of the middle cavity, the upper and lower distances of the lateral bending arc angles are larger than the middle contact surface distance between the upper conductive rubber and the lower conductive rubber. The automobile anti-pinch strip has the advantages that the lateral bending arc angle structure can ensure that the contact surface of an upper conductive layer and a lower conductive layer is large, thus the contact resistance is smaller, anti-pinch is more sensitive, the anti-pinch effect is better, the middle of the section is of a dumbbell-shaped structure, thus when the pressure is same, the conductive layers are compressed more tightly, and the resistance is more stable.

The invention provides a tire mold vulcanizing device, and relates to the technical field of tire molds. A barrel-shaped valve body is inserted in an exhaust hole, the bottom of the valve body is provided with a limiting necking port, a barrel-shaped valve element is inserted in the valve body, and a plurality of strip-shaped through holes are evenly and annularly formed in the valve element. A limiting ring is inserted in the valve element and provided with a plurality of first limiting blocks, a first connection ring is coaxially arranged at the bottom end of the valve element, the outer edge of the first connection ring is provided with second limiting blocks, a push ring is coaxially inserted to the lower end of the valve element, third limiting blocks are arranged on the outer edge ofthe push ring, a second connection ring is coaxially arranged below the limiting necking port, a circular truncated cone-shaped sealing block is arranged at the top end of the valve element, the topend of the valve body is provided with a flaring, the valve element is provided with fourth limiting blocks, the valve element is sleeved with springs, the outer surface of the valve element is provided with vent holes, and the springs and the vent holes are arranged between the fourth limiting blocks and the first limiting blocks. An exhaust valve is additionally arranged in the exhaust hole, therefore, the exhaust effect is effectively ensured, and the exhaust valve is good in performance and convenient to use.

The invention discloses a kitchen waste liquid pretreatment device, and relates to the technical field of kitchen waste treatment. The kitchen waste liquid pretreatment device is used for solving the problem that the incineration cost of kitchen waste residues is increased due to the fact that the particle size of the waste residues is large and the water content of separated solid residues is relatively high in existing kitchen waste water front-end pretreatment. According to the kitchen waste liquid pretreatment device, a spiral extrusion filtering mechanism is additionally arranged, the separated solid residues automatically slide to the spiral extrusion filtering mechanism under the gravity, are slowly extruded, pass through a filter screen cylinder with a gap of 1mm, and are pushed into an upward solid-residue climbing guide pipe, the solid-residue climbing guide pipe is arranged obliquely upwards and forms an included angle of 120 degrees with a spiral extrusion in axial direction, the solid residues start to climb upwards in an extrusion channel, so that relatively large resistance is generated, spiral extrusion is more compact, water in the solid residues is effectively extruded out, the extruded waste liquid passes through a water bin at the bottom of the spiral extrusion and then flows into the bottom of a solid-liquid separation device, so that the water content of the solid residues can be reduced from 90% to about 50% in the solid residue extrusion link.

The invention provides a metal whisker reinforced aluminum/polytetrafluoroethylene active material and a preparation process thereof, and relates to the technical field of energetic materials. The metal whisker reinforced aluminum/polytetrafluoroethylene active material comprises the following raw materials: aluminum powder, polytetrafluoroethylene powder and zirconium wire whiskers, wherein the zirconium wire whiskers are used as a filler to improve an aluminum/polytetrafluoroethylene active material, and the zirconium wire whiskers do not influence the impact reaction energy release capacityof the aluminum/polytetrafluoroethylene active material, and can improve the dynamic compression strength of the aluminum/polytetrafluoroethylene active material. The invention discloses a preparation process of a metal whisker reinforced aluminum/polytetrafluoroethylene active material. The preparation process comprises the following steps: preparing a mixed raw material, pressing a grain and sintering a finished product. According to the invention, the whole process flow is simple, the production cost is reduced, the production is easy, and the produced product is high in dynamic compression strength and high in practical value through experimental detection.

The invention relates to a cookie forming device capable of avoiding breakage. The cookie forming device comprises a support frame, wherein a first driving motor is arranged at the upper end of the support frame; the lower end of the first driving motor is connected with a connecting block through a first telescopic rod; the connecting block is rotationally connected with an upper die holder; theupper die holder is connected in the forming device in a sliding mode; below the upper die holder, a lower die holder is detachably connected with the inner side of the forming device; the support frame is connected with a bottom plate; a rotating rod is arranged on the bottom plate; the rotating rod is rotationally connected with the lower die holder; a feed pipe is arranged on one side of the forming device; the feed pipe penetrates through the support frame; and a transmission motor is arranged at one end of the feed pipe. The cookie forming device capable of avoiding breakage has the beneficial effects that the first telescopic rod is connected with the upper die holder, the forming device is connected with the feed pipe, the feed pipe controls the feed-in amount through the transmission motor, and the lower die holder is easier to fall off from the forming device by virtue of the rotating rod, thereby achieving the effects that the in and out amount of materials is controlled, thematerials are prevented from being extruded and leaking and the formed cookies are easier to fall off.