99 results about "Self cutting" patented technology

The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and / or planar portions are aligned. Each prosthesis may provide flexion / extension, anterior / posterior translation, lateral bending, and / or axial rotation degrees of freedom. One embodiment comprises a prosthesis with a first joint providing flexion / extension and anterior / posterior translation, and a second joint providing lateral bending and axial rotation.

A bone screw anchor capable of securely fastening a fixation device to weak or brittle bone. The anchor includes a distal region terminating in an open aperture or a solid tapered terminus. The distal region may include cutting flutes and a helical thread extending through an intermediate region, so as to make the anchor self-cutting. The proximal region has a receptor for receiving a driver for driving the anchor within a bore or hole within the bone. The anchor has an interior bore with internal threads for receiving a bone screw used to secure a fixation device to the anchor. The bore may have a plurality of ports providing passage to the exterior of the anchor. Once seated entirely within the receptor, the anchor's position is secured using bone cement. Bone cement is delivered to the bore or hole before the anchor is placed in the receptor or after via the ports.

The invention relates to bone implants, namely screw-type implants and, more particularly, to a self tapping dental implant having at least two helical grooves running in opposite directions around the implant.

Disclosed herein is a plate-shaped secondary battery used as a unit cell for middle- or large-sized battery pack, the secondary battery having an electrode assembly, which can be charged and discharged, mounted in a sheet-shaped battery case including a metal layer and a resin layer in a sealed state, the electrode assembly having electrode terminals protruding outside a sealing part of the battery case, wherein at least one of the electrode terminals is provided at a position spaced a predetermined distance from the sealing part with a self cutting part having a vertical sectional area less than that of the remaining part of the at least one electrode terminal such that the self cutting part can break first when overcurrent flows in the secondary battery.

The invention relates to methods of stabilizing bone implants, comprising inserting a self tapping implant having at least two helical grooves running in opposite directions around the implant.

The invention discloses a six-foot obstacle crossing robot with a limb self-cutting function. The six-foot obstacle crossing robot comprises an overall bracket, two front feet, two middle feet, two rear feet, a front waist part and a rear waist part, wherein the front feet are provided with torsion springs and can be bent unilaterally; the middle feet are driven by a synchronous belt; the rear feet are provided with torsion springs and can be bent unilaterally; the front waist part and the rear waist part can rotate; the two front feet are connected to the front part of the overall bracket through a front bracket and the front waist part; the two middle feet are arranged on the two sides of the overall bracket; the two rear feet are connected to the rear part of the overall bracket through a rear bracket and the rear waist part; all the middle parts of the front feet, the middle feet and the rear feet are provided with unlocking mechanisms driven by thermo-sensitive liquid; and when the unlocking mechanisms receive a limb cutting instruction transmitted by a central processing unit, limb cutting action is executed, and the overall machine enters a cut-limb walking state. The six-foot obstacle crossing robot has the advantages that the obstacle crossing capacity is high, the complexity and the control difficulty of a system are reduced, the stability and the practicability are improved, whether the feet are trapped or not can be recognized, the robot can continuously walk after a limb is automatically cut, and the survival capacity is improved.

In order to produce a connecting means for connecting a first component and a second component and especially for connecting furniture parts or machine parts which will enable two components consisting of a multiplicity of materials to be securely connected to one another without giving rise to the danger of damaging the two components during the assembly process, wherein the device comprises a first connecting element that it arranged on the first component in the connected state of the components and a second connecting element that is arranged on the second component in the connected state of the components, it is proposed that at least one of the connecting elements should comprise a non self-cutting holding projection which has a curved support surface that is in the form of an arc of a circle in longitudinal section, wherein the holding projection can be inserted into a groove which is provided in one of the components and has a curved undercut surface that is in the form of an arc of a circle in longitudinal section.

For the first time, a screw cap (1) is realized with which a tubular bag to which the screw cap (1) is attached can be opened by a self-cutting process and metered dispensing from a metering opening (31) is simultaneously realized. The screw cap (1) consists of a lower part (2), on which a spacing means (4), used in practical terms as transport protection, is placed, and onto which a cutting sleeve (3) with a lateral metering opening (31) is screwed. The container can be opened by means of the cutting sleeve (3) and thereafter its contents can be dispensed in a metered manner by means of a valve piston (5) that is guided in the cutting sleeve (3) by a screwing movement. In the closed state, the valve piston (5) reaches into the cylinder (30) of the cutting sleeve (3) underneath the metering opening (31) and seals the cylinder (30), which is open at both ends, off against the container that is welded to the flange (21) of the lower part (2).

In order to produce a connecting means for connecting a first component and a second component and especially for connecting furniture parts or machine parts which will enable two components consisting of a multiplicity of materials to be securely connected to one another without giving rise to the danger of damaging the two components during the assembly process, wherein the device comprises a first connecting element that it arranged on the first component in the connected state of the components and a second connecting element that is arranged on the second component in the connected state of the components, it is proposed that at least one of the connecting elements should comprise a non self-cutting holding projection which has a curved support surface that is in the form of an arc of a circle in longitudinal section, wherein the holding projection can be inserted into a groove which is provided in one of the components and has a curved undercut surface that is in the form of an arc of a circle in longitudinal section.

The invention relates to a straw recycling granulation operation locomotive, belonging to the field of agricultural machinery. The straw recycling granulation operation locomotive comprises a locomotive, a harvesting machine, drawing feeders, a material lifting drum and a grinding granulating machine, wherein the harvesting machine is connected to the bottom of the front end of a cab of the locomotive; both sides of a shearing toothed plate are respectively provided with the inwards inclined drawing feeders; a material feeding port is arranged between the two drawing feeders and connected to a hopper of the grinding granulating machine through the material lifting drum; a forwards-extending raised centering guide support bar is fixed on a chassis of the harvesting machine; the grinding granulating machine is fixed on a chassis of the locomotive; and a forwards-extending straw smoothing corrector and a pickup device are fixed on the front end of the shearing toothed plate. The straw recycling granulation operation locomotive disclosed by the invention is a field operation machine integrating multiple functions, i.e. harvesting, cutting, grinding forming and finished product storage, into a whole; compared with a straw operation machine with single function in the current market, the straw recycling granulation operation locomotive disclosed by the invention can realize the effects of self operation, self harvesting, self cutting, self grinding and self forming, thereby not only saving the labor power but also enhancing the work efficiency; the straw recycling granulation operation locomotive disclosed by the invention is suitable for the harvesting processing of straws of various crops; in addition, a processed finished product can be used for electricity generation fuel, life fuel, livestock feeds, and the like.

The invention relates to an implant system containing at least one drill and one implant, particularly a dental implant, which can be screwed into a bore hole made in a bone by means of a drill. Preferably, the implant comprises a self-cutting screw with a thread core. The aim of the invention is to further develop an implant system which guarantees high primary stability for a wide variety of bone qualities and requires little technical complexity. According to the invention, the implant and the drill are co-ordinated in such a manner according to bone quality that a compressed zone arises when the implant is screwed into the implant in the bone. The size of the compressed zone is greater for low bone quality than for high bone quality.

The invention relates to a grid modulator, which is installed in to a high voltage generator and includes a voltage controlling circuit, an isolating boosting transformer, a voltage doubling rectifying circuit, a drive pulse generation circuit, an isolating drive transformer, an inverter circuit, and a sampling circuit. The voltage controlling circuit automatically adjusts and outputs a voltage value to the isolating boosting transformer according to a set voltage value; the primary winding of the isolating boosting transformer is connected with the output end of the voltage controlling circuit to boost the voltage outputted by the voltage controlling circuit; the voltage doubling rectifying circuit implements doubling rectifying on the voltage boosted by the isolating boosting transformer; the drive pulse generation circuit receives the command of the control part of the high voltage generator and outputs a drive pulse; the primary winding of the isolating drive transformer is connected with the output end of the drive pulse generation circuit; the secondary winding of the isolating drive transformer is connected with the inverter circuit; the inverter circuit inverts a DC voltage formed by the voltage doubling rectifying circuit; the sampling circuit samples a voltage signal and respectively feeds back the voltage signal to the voltage controlling circuit and the control part of the high voltage generator. The grid modulator has simple structure and self-cutting function, and can meet insulating requirements.

A bladeset for a hair clipper includes blade teeth configured to guide hair strands toward a cutting zone and to retain hair strands in the cutting zone. By more effectively guiding and retaining the hair strands into the cutting zone, more complete hair cutting may be achieved. Another feature of the present self-cutting hair trimmer is a housing configured to provide a cutting line associated with a generally elongate handle, which in turn provides a bladeset angle of attack substantially perpendicular to hair to be cut on all parts of a self-user's head or a subject's head when the present trimmer is held by a user in either hand.

The drilling process of carbon fiber composite materials will produce powdery chips, which will pollute the environment and affect the health of workers. However, at present, the chip is sucked away by a vacuum cleaner manually, because it can only be sucked from the hole entrance area, and cannot be sucked directly when it is generated. Aiming at this main problem, the present invention proposes a brand-new processing system—the air-suction self-removing chip processing system for CFRP processing to provide a technical solution for realizing CFRP green processing. The proposed self-suction chip removal system for CFRP machining includes: 1-machine tool, 2-CFRP, 3-drill, 4-tool holder, 5-spindle, 6-cutting channel, 7-suction / storage device. The working principle of the air-breathing chip removal system for CFRP processing is that when the machine tool drives the drill bit to cut the workpiece, the instantaneous chips generated during the drilling process can pass through the suction hole of the tool, pass through the tool holder, the spindle and the chip removal channel. Enter the storage device to realize the green processing of CFRP.

The invention relates to a cotyloid component of a hip prosthesis, said cotyloid component being hollow and in the form of a cup whose outer part has a thread allowing it to be fixed in the iliac bone, said thread being a discontinuous self-cutting double thread (20, 21), and said cotyloid component having a flattened upper pole (1), a coating that promotes osseointegration on its outer face (10), and a concave, substantially hemispherical and polished inner surface (11), characterized in that: (a) the pitch of the threads (20, 21) decreases from the upper pole (1) towards the equatorial periphery (3) of the cotyloid component, (b) the thicknesses of the threads (20, 21) increase from the upper pole (1) of the cotyloid component towards its periphery (3), (c) the crest of the threads (20, 21) is sharp towards the pole (1) of the cotyloid component and rounded or substantially trapezoidal towards the equatorial periphery (3) of the cotyloid component.

The thermosetting injection mold for plastic packaged motor assembly includes one upper mold plate fixed to the upper mold fixing plate, one lower mold plate fixed to the lower mold fixing plate and one mold core. The upper mold plate, the lower mold plate and the mold core enclose the forming mold cavity. Beside the lower mold plate, there is also one ejecting mechanism driven by the injection molding machine to push out the product from the mold core. The present invention features the upper mold pushing board with downward extending runner cutter aligning the edge of the forming mold cavity. The present invention has self cutting of the inside runner and compact structure, and facilitates the plastic assembly production.

The invention provides a new method of fusion expressing a small molecular protein (polypeptide). The new method is characterized by comprising the following steps: using hirudin as a fusion partner (label), splicing the protein (polypeptide) with a small molecular mesh to the downstream of the hirudin as the fusion partner to carry out fusion expression, designing a connecting peptide (which contains protease or a chemical cutting site or intein as a self-cuttable protein intron) between the fusion partner and a target protein (polypeptide), and releasing the target protein (polypeptide) by restriction enzyme digestion or chemical cutting or induced self cutting after fusion protein expression. The new method has the advantages that (1) as the hirudin as the fusion partner (label) is smaller (with the molecular weight of 7Kd), the rate of the protein (polypeptide) with the small molecular mesh accounting for a fusion protein can be effectively increased, and the yield of the target small molecular protein (polypeptide) is finally increased; (2) the hirudin still has the anticoagulant activity after being fused as the fusion partner (label), and the expression and the purification of the fusion protein can be conveniently detected and traced in real time.

The invention provides a self-cutting cotton rolling device, belonging to the technical field of textile machinery. The self-cutting cotton rolling device comprises a cotton rolling cylinder, a bracket, a cross rail, cotton pressing rods and a cutter, wherein the bracket is arranged at both ends of the cotton rolling cylinder; the cross rail and the cotton pressing rods are fixed to the bracket, the axes of the cross rail and the cotton pressing rods are parallel to the axis of the cotton rolling cylinder, and the cross rail and the cotton pressing rods can be controlled by a vertical motor to move along the bracket; the cutter is arranged on the cross rail and is controlled by a horizontal motor to move left and right along the direction of the cross rail; a cutting slot corresponding to the position of the cutter is formed on the cotton rolling cylinder; and the cotton pressing rods are symmetrically distributed relative to the position of the cutter. The self-cutting cotton rolling device has the advantages that cotton carding quilts can be automatically cut, so that the manual operation is not required, the efficiency is higher, the cutting is more accurate, the safety of operators is higher, and the quality of the produced cotton quilts is higher.

The invention relates to a semi-open type self-cutting blocking-free pump impeller for a shearing structure. The semi-open type self-cutting blocking-free pump impeller for the shearing structure is characterized in that the impeller which is in a semi-open type comprises two blades; inlet pumps (1) of blades (4) of the impeller (5) are provided with two cutting tool bits (3); the cutting tool bits (3) are provided with certain angles; the cutting tool bits (3) and the impeller blades (4) form into milling cutter structures. Filaments and large particles are cut off by the milling cutter structures which are formed by the impeller blades (4) and the cutting tool bits (3) when enter the impeller (5) under impact of fluid, blocking of the pump impeller channel is reduced, and the pass ability of dirt impurities is improved. The semi-open type self-cutting free-blocking pump impeller for the shearing structure is simple in structure and stable in operation, effectively reduces the blocking of the pump impeller channel and improves the passing performance and improves the operation efficiency of the dirt impurities.

The invention relates to the technical field of bartacking machines, in particular to an all-in-one machine capable of achieving fast switching between a bartacking function and a buttonholing function. The all-in-one machine capable of achieving fast switching between the bartacking function and the buttonholing function comprises a machine stand and a machine base installed on the machine stand, wherein a needle plate is arranged on the machine stand, a bartacking mechanism is arranged on the upper side of the machine base, an automatic buttonholing device and an automatic checking mechanism are arranged on the machine base the automatic buttonholing device is located on one side of the bartacking mechanism and is controlled by a controller, and the automatic checking mechanism is arranged on the machine stand and is located below the automatic buttonholing device. The all-in-one machine capable of achieving fast switching beween the bartacking function and the buttonholing function has the advantages that fast switching between non-through buttonhole sewing and bartacking can be achieved, the bartacking function and the buttonholing function are integrated, the number of required workers and the number of required devices are reduced correspondingly, the effect is improved correspondingly, and a self-cutting function is achieved.

The invention relates to a self-cutting undercut anchor (1) provided with an anchor (2) and an expansion sleeve (3). The undercut anchor is anchored in a hole (12) by the expansion of the expansion sleeve (3). By adopting the configuration of the undercut anchor (1), in order to realize the expansion, a setting tool is disposed on the rear end (27) of the expansion sleeve (3) in an inputting direction (E),and the expansion sleeve (3) is pushed to an expansion body (7) by impact, and then a slotted expansion section (13) can be expanded. In order to improve the expansion characteristic of the undercut anchor (1), suggestion is that, the expansion sleeve (3) is provided with a sliding section (16), which is provided with a sliding element (20), and has a diameter gradually reduced, on the front end in the inputting direction (E). At least a first ring level (17) is disposed between the sliding section (16) and the part (25) of the unprotected rear part of the expansion sleeve (3), and the ring level is provided with a first edge (18) embedded in the hole wall of the hole.

The invention relates to an N-1 outage scanning system based on cooperation between an overload cutting device and a self-cutting device and belongs to the technical field of electric power. The N-1 outage scanning system comprise a processor, a storer, a data analyzer, a data interface and other main devices and further comprises a topology module, a load flow calculation module, an N-1 module, a database module, a data analysis module, a data interface module and other main components. The data interface module acquires CIM file data and E file data from an SCADA system. The data analysis module analyzes a CIM file and an E file and then stores the analyzed CIM file and the analyzed E file into the database module. The topology module generates topology data according to equipment parameters and topology connection data. The load flow calculation module calculates grid load flow according to the topology data and grid operation data. The N-1 module performs N-1 outage scanning according to the topology data and the grid load flow data. Compared with the prior art, the N-1 outage scanning system has the advantages of being high in accuracy and practicability, quick and efficient.

The invention discloses a self-cutting follow current lightning arrester. An outer glue sleeve of a traditional lightning arrester, an insulation cylinder, an upper electrode and a lower electrode are used for forming a sealed cavity. A main discharging gap and an auxiliary discharging gap which are connected through a lead are arranged in the cavity. In the main discharging gap, an insulation partitioning plate with a through hole is arranged in a partitioning mode. A coil wound on a magnetic rod is connected in parallel to the two ends of the auxiliary gap. When lightning waves come, high-voltage electricity enters from a lightning arrester lead, the main discharging gap and the auxiliary discharging gap are broken down at the same time, and lightning current is discharged into the ground. Power frequency follow current frequency is far lower than thunder and lightning equivalent frequency, so that power frequency follow current can pass a magnet exciting coil which cannot be passed by lightning current, the magnetic rod generates magnetic force to pull down the insulation partitioning plate, an arc at the main discharging gap is cut off, and power frequency follow current generates magnetic force to cut off the power frequency follow current. Then, under the effects of a spring and a limiting plate, the self-cutting follow current lightning arrester returns to the position before discharging and is prepared for next thunder and lightning.

The invention relates to a method for producing tubular bags made from plastic film or from composite film having a plastic layer on the bag content side, having a self-cutting plastic closure attached to the tubular bag, consisting of a spout part having a fastening flange, a cutting body, which is movably guided in the spout part, and a screw cover having means for activating the cutting body. The film material (5) is supplied from a supply roll to a bag manufacturing machine and the plastic closure is sealed onto the film material in a spout region of a tubular bag. According to the invention, the film material (5) is thinned on the inside of the bag in a ring-shaped region, which is intended for cutting by the cutting body, by means of a thermal embossing process. The plastic closure is then positioned and sealed onto the film material such that the cutting organ embedded in the spout part can become effective in the thinned, ring-shaped region upon use thereof.

The invention belongs to the technical field of plastic sheet molding equipment, mainly relates to a positive-negative pressure self-cutting integral machine, and aims to solve the problems that in the prior art a great deal of equipment is used, a large field is needed, a great number of operators are needed, a prepared product is long in transferring process and the prepared product can be easily deformed and contaminated. The positive-negative pressure self-cutting integral machine comprises a rack, wherein the rack comprises a conveying beam which is arranged in the extension direction of the rack; a heating device, a molding device, a cutting device and a push device are sequentially arranged in the conveying direction of the conveying beam. By adopting the positive-negative pressure self-cutting integral machine, the space is saved, the labor is saved, the product transferring time is shortened, and a molded product is uniform in thickness and excellent in quality.

The invention provides a preparation method of micro-plasmin without a self-cutting form. The preparation method comprises the steps of S1, recombinant fermentation of the micro-plasmin without the self-cutting form, wherein recombinant fermentation comprises the steps of S12, liquid fermentation culture, namely (NH4)2SO4 and sucrose are added in the liquid fermentation culture process. By the adoption of the preparation method of the micro-plasmin without the self-cutting form, the problems are solved that in the prior art, micro-plasmin acid hydrolysis caused by excessively low pH and self-catalytic degradation of the micro-plasmin caused by excessively high pH cannot be avoided at the same time.

The invention provides a novel self-undercut anchor. The anchor is characterized by comprising a screw, an expansion sheet, a nut and a flat gasket, wherein the screw comprises a screw head, a screw part, a first cylindrical part, a second cylindrical part, a third cylindrical part, a circular truncated cone part, a screw tail and a spherical part which are connected in sequence from front to back, the screw part is connected with the nut in a threaded fit manner, the flat gasket is positioned at the rear side of the nut, and the expansion sheet comprises a self-locking key and a self-cuttingknife head. The anchor has the following advantages that when the self-cutting knife head cuts a concrete hole, the self-locking key can firmly clamp a conical groove along with increase of torque, and stability and reliability are achieved; and expansion circular holes and expansion force convex points are formed in the middle of the expansion sheet, the expansion circular holes and the expansionforce convex points are arranged in a staggered mode in the circumferential direction, so that stress of the expansion sheet during rotary cutting is reduced.