69results about How to "Reduce free space" patented technology

A sealing pipette tip includes features to seal the tip directly against the piston in an air displacement pipette, avoiding the need for a piston seal within the pipette. This configuration reduces potential points of failure, allows the pipette-tip interface to be optimized, and improves liquid handling characteristics of the pipette.

A heddle (14) of the invention is distinguished by end eyelets (15, 16) of reduced size, with which heddle support rails (6, 7) of reduced cross section are associated. The axial play of the heddles on the heddle support rails (6, 7) is limited to from 0.5 mm to 1.5 mm. The lateral play is in the range of 0.2 mm to 0.5 mm. This system formed of heddle support rails and heddles is especially suitable for particularly rigid heddle shafts for power looms with an extremely high operating speed.

A coppice header for a forage harvester adapted to be mounted on and powered by a forage harvester. The header including at the front side two circular rotatable knives, a feeding drum being mounted above each knife, said drums being rotatable about the same rotation axis as the respective knives, wherein each feeding drum is equipped with one or more flat hook-shaped extensions adapted to grab the cut stems in the region immediately above the rotatable knives. The header may also be provided with a front feed roll placed behind the knives and two additional feed rolls placed behind the front feed roll, wherein the front feed roll is equipped with guiding blades along the length of the feed roll. The blades have a central protrusion, so that the blades are longer in a region around the middle of the blade than at the lateral ends of the blades.

The invention provides a dynamic random access memory (DRAM), which comprises a memory unit with an area of 7F2, parallel word lines arranged at equal intervals and parallel bit lines which are arranged at equal intervals and vertical to the word lines, wherein the pitch between the word lines is 2F; the pitch between the bit lines also comprises a plurality of active areas; the connecting lines between the center of each active area and the centers of two adjacent active areas which are on the same adjacent bit line forms an equilateral triangle, and the length of the edge of the equilateral triangle is 4F. When the technical scheme is implemented, the memory unit area can be better used by adopting the memory unit with an area of 7F2 as a folding bit line memory unit than adopting the memory unit with an area of 8F2 as the folding bit line memory unit; and compared with a DRAM having the memory unit with an area of 6F2, the DRAM having the memory unit with the area of 7F2 does not have technical difficulties, and drawbacks of low noise immunity and low signal to noise ratio, which are caused by an open bit line structure, of the DRAM having the memory unit with the area of 6F2.

A material storage device of a material storage plant, comprising a material storage bearing floor (1) and two retaining walls (2); a material storage cabin (3) is formed between the two retaining walls (2); and material storage grids (4) formed by the material storage bearing floor (1) and the retaining walls (2) are provided at the two longitudinal sides or one side of the material storage cabin (3). Also disclosed is an enclosed material storage plant comprising a material storage plant (9) and the material storage device disposed in the material storage plant; the material storage cabin (3) eliminates a V-shaped space over the material, thus improving space utilization, reducing footprint, and lowering energy consumption for ventilation, heating and illumination of the material storage plant; the material storage plant has more independent unit material bins (7) and independent unit material grids (8), thus having better variety adaptability; transverse partition walls (5) support the retaining walls (2), thus improving the rigidity and bearing performance of the retaining walls (2); the retaining walls (2) are thinner, lowering cost of construction investment; the material storage cabin (3) exposes a smaller area of materials, resulting in a smaller amount of dust raised in feeding and discharge processes, so that material having a high environmental protection requirement can be stored in the material storage cabin (3), ensuring better environmental protection.