314 results about "Rhomboid" patented technology

Linear actuators comprised of a plurality of geometric links connected together in displacement multiplied fashion by a plurality of SMA wires. The links may have a trigon or chevron configuration. The trigon links may be combined with a hexagonal or rhomboidal shaft to create a defined stacking pattern of links about the shaft. The shaft extends from the medial portion of the stack. Ohmic heating circuits connect to non-moving ends of SMA wires. Various groupings of links in parallel displacement are described.

The invention discloses a method for processing an open-web sharp-angled rhomboid tube. The open-web sharp-angled rhomboid tube comprises a first side, a second side, a third side and a fourth side which are sequentially connected, wherein the fourth side and the first side are in butt joint to form a sharp angle. The processing method comprises the following steps of: A, rolling areas corresponding to the first side and the fourth side on two sides of a steel band by a roller to enable partial areas of the first side and the fourth side to become arc faces; B, rolling and bending the junction of the first side and the second side and the junction of the fourth side and the third side; C, rolling and bending the junction of the second side and the third side by the roller to enable an inclined angle of the second side and the third side to be gradually reduced until the first side and the fourth side are nearly closed; D, carrying out stitch welding to completely close and weld the first side and the fourth side together; E, scraping a vertex angle at the welded part into a sharp angle by a scraper; and F, reshaping the first side and the fourth side into a plane and simultaneously reshaping the sizes and inclined angles of various sides to the final requirements.

Some embodiments of the invention provide vias that are not in shape of quadrilaterals. In some embodiments, some or all vias are in shape of non-quadrilateral polygons, such as octagons and hexagons. In some embodiments, some or all vias have a circular shape. Some embodiments provide a first set of vias that have a diamond shape and a second set of vias that have a rectangular shape. In some embodiments, a via can also be formed by a diamond contact and a rectangular contact. The diamond contact has four sides. In the embodiments described below, all four sides of a diamond via contact have equal sides. However, in other embodiments, a via contact can be in shape of a diamond with a pair of sides that are longer than the other pair of sides. Similarly, in the embodiments described below, the rectangular via contacts are squares with four equal sides. However, in other embodiments, the length and width of a rectangular via contact can differ. Some embodiments of the invention provide interconnect lines that have non-rectangular ends. In some embodiments, the interconnect-line ends are partial octagons, hexagons, and/or circles. Also, some embodiments provide Steiner points that are not rectangular. In some embodiments, the Steiner points are octagonal, hexagonal, or circles.

The invention discloses an integrated support convenient to recycle. The integrated support comprises a framework portion which is formed by weaving one wire. The formwork comprises opening portions at two ends, more than two middle supporting portions connecting the opening portions at the two ends, and connection portions. The adjacent opening portions and the supporting portions are connected through the connection portions, and the adjacent supporting portions are connected through the connection portions. The opening portions, the supporting portions and the connection portions are formed by weaving one wire. The opening portions and the supporting portions are rhombic grids, and the connection portions are connected in a Z-shaped wave mode. The invention further discloses a weaving method of the integrated support convenient to recycle.

A blank for constructing a three-dimensional form is provided. The blank includes a rhomboid panel with three edges and two fold lines, which define a pair of triangular panels. Another rhomboid panel connected to the first rhomboid panel along the common fold line, the other rhomboid panel having three edges and a fold line, which together with the common fold line define another pair of triangular panels. At least one securing flap is connected to one rhomboid edge, the rhomboid panels being foldable towards each other about the common fold line. The pairs of triangles are foldable towards each other and the securing flap is foldable over and connectable to one of the second rhomboid panel edges. A three-dimensional form is also provided.

An active imaging retroreflection based optical system for the detection of other optical systems, especially passive optics used for observation/surveillance, or targeting. The active imaging system is switchable from either near-IR laser illumination, to a combination of near-IR and visible laser light illumination. The illumination is shaped into narrow elongated beams, generally elliptical in shape. These beams are channeled by rhomboid prisms so as to be emitted collimated to each other and monostatic to the detection system, such that the retroreflected return image returns axially to the optical detection system. The return image is resolved and refined by a series of objective and field lenses, and by a dual band, visible light and near-IR, pass filter, to add clarity and contrast. The energy is further enhanced by being amplified by a highly sensitive detector, such as a third generation imager; or a high sensitivity, back-illuminated CCD (charge coupled device); or a high sensitivity wide dynamic range CMOS (complimentary metal-oxide semiconductor) sensor. The retroreflected energy, processed by this third generation imager, or the like, appears as a concentrated point of light, or bright spot, that can be quickly and easily distinguished from its surroundings, which also appear to the user.

A curved scissor linkage mechanism (1) includes at least four linkage elements (2) each having a first end (3) and a second end (4). The linkage elements are arranged to form sides of one or more rhombi or parallelograms. Each linkage element is rotationally connected to another linkage elements via a revolute joint (5) at the first end and is rotationally connected to another one of the other linkage elements via another revolute joint at the second end. The linkage elements are configured so that the axes of each joint coincide at one common remote centre of motion. The mechanism is connectable to a first external member (7) at a proximal end and is rotationally connectable to a second external member (9) at an opposite distal end to obtain three DOFs. The scissor linkage mechanism may further include a motion controlling mechanism.

The invention discloses a flow limiting valve with a adjustable section. By installing a rhombic stop block in a gate valve, the position of the rhombic stop block is changed when a valve rod is rotated, a channel convenient for a fluid to pass through is reserved in the middle of the rhombic stop block, the size of the flow of the fluid flowing through the gate valve is controlled when the size of inner pore diameter is changed, and the purpose of flow limiting is achieved; meanwhile, the function of a pressure reduction pore plate can be achieved when the pore diameter is certain, the internal current-limiting rhombic stop block is mounted inside a valve body, two sides of the rhombic stop block are provided with sliding columns used for adjusting positions, the change of the size of ofthe inner pore diameter of a rhombic baffle is reached by changing the positions of the sliding columns, one sides of the sliding columns are mounted in preset sliding rail grooves of the valve body attached to the sliding columns, and other sides of the sliding columns are mounted in the sliding groove in a rotatable adjusting rotating disc. When a hand wheel is convenient to rotate, a conical gear at the lower end of the valve rod drives a conical gear at the adjusting rotating disc, the rotating disc is adjusted to rotate, the position of the rhombic stop block is changed, and the inner pore diameter of the rhombic stop block is enlarged or reduced to achieve the purpose of flow limiting.

An interferometer system includes a rhomboid assembly having a first optical stack and a second optical stack mounted on the first stack. The first stack includes a first prism having an angled face mounted to an angled face of a second prism. The interface between these angled faces includes a first polarizing beam-splitter. The second stack includes a third prism having an angled face mounted to an angled face of the fourth prism. The interface between these angled faces includes a second polarizing beam-splitter. First, second, third, and fourth wave plate elements are located in beam paths between the rhomboid assembly and at least one of a measurement optic and a reference optic. A redirecting optic is located at least adjacent to the vertical faces of the first and the third prisms.

The invention discloses a low-frequency large-stroke quasi-zero stiffness vibration isolation device, belongs to the technical field of mechanical vibration and noise control, and aims at solving theproblems that the dynamic stiffness of an existing quasi-zero stiffness vibration isolator can keep a quasi-zero displacement stroke to be small, so that the vibration isolation effect of the existingquasi-zero stiffness vibration isolator is extremely sensitive to the external environment and borne loads, and the existing quasi-zero stiffness vibration isolator cannot adapt to severe and complexactual working conditions. An upper platform and a lower platform are oppositely arranged in parallel up and down, a rhombus spring structure is arranged between the upper platform and the lower platform, the top of the rhombus spring structure is fixedly connected with the center point of the lower surface of the upper platform, and the bottom of the rhombus spring structure is fixedly connectedwith the center point of the upper surface of the lower platform. The two adjusting limiting supporting structures are oppositely arranged at the two ends of the rhombic spring structure, the bottomof each adjusting limiting supporting structure is fixedly connected with the upper surface of the lower platform, and the top of each adjusting limiting supporting structure is fixedly connected withthe lower surface of the upper platform. The low-frequency large-stroke quasi-zero stiffness vibration isolation device is suitable for isolating low-frequency vibration generated by a vibration source within a large displacement range.

The rotary mechanism with articulating rotor may be adapted as a pump or compressor when external power is applied to its shaft, as a motor when differential pressure is applied to its inlet and outlet ports, or as an internal combustion engine when provided with fuel, air, and ignition source. The mechanism includes an internal chamber having major and minor diameters. An articulating rotor having four linked segments rotates therein. The segments allow the rotor to articulate between square and rhomboid shapes as it rotates within the chamber, the rotor segments forming variable volume chamber portions as they rotate. The rotor segments are linked to the central shaft either by a transverse arm rotationally affixed to the central shaft and to diametrically opposed rotor segments, or by telescoping rods connecting the linked ends of the rotor segments to the central shaft.

A turbine rotor has a row of turbine blades associated with a circumferential groove in a disk, each turbine blade having foot received in the groove, a blade profile above the foot, and a shroud plate above the profile. Each blade foot and each shroud plate have end surfaces and side surfaces which form a rhomboid, the end surfaces of each shroud plate tapering toward each other along respective radii and abutting the end surfaces of adjacent shroud plates to form a closed ring. The blade profiles are torsionally stressed by applying a force to each plate in a direction parallel to the axis of the disk, thereby twisting the cover plates through an angle alpha so that the side surfaces of adjacent cover plates are circumferentially aligned in a plane perpendicular to the longitudinal axis. This force is maintained by clamping devices applied to the combs of adjacent blades.

The invention discloses a crane provided with a folding arm and beams. The beams comprise a beam arranged at the inner side of the folding arm, and a beam arranged at the outer side of the folding arm. The beam arranged at the outer side of the folding arms has a truss structure. The stability of the beams in pitching is ensured. A rhomboid system is formed by hinge points of the two ends of a luffing gooseneck derrick, and hinge points of the two ends of the beam arranged at the inner side of the folding arm, so that the beam arranged at the outer side of the folding arm is always approximately parallel to horizontal line in pitching. The crane also enables rigid fixation of the beams to be realized in incomplete pitching.

Some embodiments of the invention provide vias that are not in shape of quadrilaterals. In some embodiments, some or all vias are in shape of non-quadrilateral polygons, such as octagons and hexagons. In some embodiments, some or all vias have a circular shape. Some embodiments provide a first set of vias that have a diamond shape and a second set of vias that have a rectangular shape. In some embodiments, a via can also be formed by a diamond contact and a rectangular contact. The diamond contact has four sides. In the embodiments described below, all four sides of a diamond via contact have equal sides. However, in other embodiments, a via contact can be in shape of a diamond with a pair of sides that are longer than the other pair of sides. Similarly, in the embodiments described below, the rectangular via contacts are squares with four equal sides. However, in other embodiments, the length and width of a rectangular via contact can differ. Some embodiments of the invention provide interconnect lines that have non-rectangular ends. In some embodiments, the interconnect-line ends are partial octagons, hexagons, and/or circles. Also, some embodiments provide Steiner points that are not rectangular. In some embodiments, the Steiner points are octagonal, hexagonal, or circles.

The three-dimensional lattice structures disclosed herein have applications including use in medical implants. Some examples of the lattice structure are structural in that they can be used to provide structural support or mechanical spacing. In some examples, the lattice can be configured as a scaffold to support bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. The lattice structures are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.