51results about How to "Improve insertion speed" patented technology

A threaded fastener has a substantially single helical thread formed upon a shank portion thereof, and a plurality of substantially saw-blade type or serrated teeth are formed upon crest portions of leading ones of individual thread portions of the helical thread. The threads of the threaded screw fastener are also characterized by means of predetermined flank angles, and such flank angles, in conjunction with the saw-blade type or serrated teeth, permit the threaded screw fastener of the present invention to be utilized within any one of a multiplicity of substrates, such as, for example, wood, metal, thermoplastics, composite materials, concrete, hard aggregate, or the like.

An insertion device for inserting a therapeutic device into organic tissue is disclosed and described. The device is particularly suited to insertion of such as nerve stimulating electrode arrays. The insertion device has at least one controllable positive pressure source (greater than atomospheric), two vacuum sources and a dual vacuum pressure control system. The positive pressure and the dual vacuum pressure control systems are manipulated to allow the manipulation and insertion or retrieval of a therapeutic device. The insertion device can be spatially manipulated by hand, without requiring other equipment for positioning the insertion device.

A tree-based node insertion method and a memory device are disclosed in embodiments of the present invention. The tree-based node insertion method includes: according to the key value of a node to be inserted, searching in a primary tree for the nearest node whose key value is smaller than and the most approximate to the key value of the node to be inserted; judging whether the current secondary tree is full, and if so, selecting a node from the current secondary tree as a split node, transferring all the nodes on the right of the split node in the current secondary tree to the new secondary tree, and if not, inserting the node to be inserted into the current secondary tree.

A decrease in yield and degradation of productivity can be avoided when a spark plug having an insulator with low mechanical strength is manufactured. In a second process, a terminal electrode 15 is inserted to a predetermined position in a state where an insulator 12 is heated to a temperature equal to or greater than the softening temperatures of first to third powder materials 16P, 17P, and 18P such that the first powder material 16P becomes a first conductive sealing material layer 16, the second powder material 17P becomes a resistor 17, and the third powder material 18P becomes a second conductive sealing material layer 18. In addition, a speed at which the terminal electrode 15 is inserted is reduced between the start and the end of the second process.

The invention discloses an insertion operating head of a middle-sized electronic component and an insertion method of the insertion operating head. The insertion operating head comprises an insertion head support, a first synchronous belt device, a first control motor, an L-shaped sliding block, a clamping air cylinder, a second synchronous belt device, a second control motor, a single-side movable clamping claw type clamping head, a spline shaft, a first spline shaft sleeve, a second spline shaft sleeve, a pull rod, a pull rod connection sleeve and a thrust bearing, wherein under the action of the clamping air cylinder, the single-side movable claw type clamping head can be controlled to be a clamping or loosen state by the pull rod; under the rotation of the first control motor, the first synchronous belt can drive the L-shaped sliding block, the clamping air cylinder, the spline shaft and the single-side movable claw type clamping head to vertically move upwards and downwards; a second driven pulley of the second synchronous belt device is fixedly connected with the outer peripheral surface of the first spline shaft sleeve; and through the rotation of the second control motor, the second driven pulley, the first spline shaft sleeve, the spline shaft, the second spline shaft sleeve, the single-side movable claw type clamping head, the pull rod and an upper ring of the thrust bearing can be driven to rotate around the axial line of the spline shaft in a horizontal direction.

The invention provides a vanadium catalyst with a general formula of VO(RSO3)mCln.xR'OH, wherein m+n=3, and m is 1, 2 or 3, n is 0, 1 or 2; x is within 1-3.5; RSO3<-> has a structure shown in formula I; R is a C1-C20 linear or branched alkyl, aryl, aralkyl or halogen-substituted alkyl, halogen-substituted aryl, and halogen-substituted aralkyl; R'OH is straight chain aliphatic alcohol or branched chain aliphatic alcohol with carbon atom number of 5-10. The vanadium catalyst provided by the invention has the advantages of high activity and low cost. The invention also provides a preparation method of the catalyst and a preparation method of binary or ternary ethylene-propylene copolymer by using the catalyst. The following formula is the formula I.