323 results about "Rhomboid" patented technology

The invention provides a compliant, porous, rolled stent, comprising a stent framework configured as a rhomboid having two short sides and two long sides. The stent framework includes a plurality of slits formed parallel to the short sides of the rhomboid, edge portions adjacent to the long sides of the rhomboid being unslit. The stent framework is rolled at an angle such that the long sides of the rhomboid overlap one another to form a tubular structure. The tubular structure has a spiral backbone formed by the unslit edge portions adjacent to the long sides of the rhomboid. The short sides of the rhomboid form the proximal and distal ends of the stent.

An ergonomic training utensil for teaching a user to self feed includes a handle and at least one food accommodating means extending from at least one end of the handle. In a first embodiment, the training utensil has an arc shape when viewed from top and bottom and the handle has a center section which has a transverse cross-section which is one of bulbous or lobular. In a second embodiment, the handle is a parallelogram and is one of a rhombus or a rectangle, and has a center section having a transverse cross-section which has an S-shaped. Ergonomic utility is provided by the arc shape of the utensil and by the bulbous or lobular transverse cross-section of the handle of the first embodiment, and by the S-shape of the transverse cross-section of the second embodiment.

This disclosure pertains to the field of small-unmanned aerial vehicles (UAVs). The delta wing vehicle consists of an isosceles triangular shaped lifting body milled from Styrofoam. The longitudinal axis is approximately 65% of the lateral axis. The horizontal wing projections, or tiplets, are attached to the main lifting body at an approximately 10 degree upward angle from horizontal, have a 30 degree sweep back leading edge, and each one comprises 5% of the total wing area. The airfoil is a rhomboid or diamond shape. The chord is swept back at a 45-degree angle from the longitudinal centerline. The airfoil is symmetrical about the longitudinal center. The aircraft is controlled by a set of combined elevator / aileron surfaces (elevons) at the rear as well as a vertical stabilizer / rudder combination. This resulting lightweight UAV can make flat (unbanked) unbanked turns, fly in high winds, and has superior flexibility in payload capability.

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 “Trio-meter”is a multipurpose instrument by using—“Multi-slotted link sliding assembly mechanism”—for triangle solutions including Pythagoras theorem' as a ready reckoner (FIG. II). Useful instrument with marker block attachment to draw and measure straight lines, lengths, arcs, semi circles, circles, bicircles, tricircles, parallelograms, rhombuses, trapezoids, parallellines and triangles with fractional and accurate measurements easily and quickly (FIG. III to VIII). The novel instrument with tri-sector attachments, trisects an angle and multiplies an angle into double, triple & quadruple as well as reduces an angle in to two-third half, one third and quarter fractionally and accurately (FIG. IX). It comprises three slotted links with in built main measuring scales, which are also working as sides of a triangle, three vernier calipers with three protractors and three indicators, assembled by centre pins, with all necessary attachments, parts and components (1 to 99) for complete operations and perfect functioning.

Disclosed is a current collector, in which protrusions are formed in a predetermined array on one or two faces of a metal foil. The protrusions are formed in a substantial rhomboid and arranged in a staggered array. The protrusions are also formed to protrude outward at the individual two end portions in the two orthogonal axial directions. On the other hand, the intermediate portions between the individual end portions are recessed inward. When columnar bodies of an active material are formed on the protrusions thereby to constitute active material layers, gaps between the individual protrusions can be enlarged at portions where the clearances between the individual protrusions are the smallest. As a result, the internal stresses of the active material layer, which occur at the time of charging and discharging of a battery, can be relaxed to elongate the lifetime of the battery.

This invention is a set of magnetic building blocks. Each block or piece in the set is in the shape of a right golden rhombic pyramid. There are two important fixed proportions that dictate each block's shape. The first is that the pyramid's base is a golden rhombus. That means the ratio of its long diagonal to its short diagonal is 1.618, otherwise known as φ, or the “golden ratio.”The other important proportion of each block's shape is the height of the pyramid. The height of the pyramid as measured from the rhombus base centroid (the point at which the two base diagonals intersect) to its apex is (φ+1) / 2 or approximately 1.309 times the length of the short diagonal in the rhombus base. Each building block has magnets embedded in its interior faces. This means that the pieces will stick together magnetically. The user can build various shapes and designs with the blocks. The set of building blocks can be used as a creativity tool, toy, puzzle, game, display device, creativity prop, and cognitive stimulant.

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.

Indexable insert has a non-rectangular parallelogram shape with nearly rhombic basic shape and an imaginary intermediate plane spanned by four corners of an imaginary rhombus with sides running at a distance away from the upper side and the underside along the peripheral lateral surface in a plane such that each equivalent cutting edge has the same variation of distance and angle from the intermediate plane. Two diagonally opposing corners of both the upper side and the underside each have a greater distance from the intermediate plane than do the respective diagonally opposing corners of the upper side and the underside lying therebetween, and the diagonally opposing corners of the upper side and of the underside are shifted parallel to the intermediate plane and, as viewed in a plan view onto the intermediate plane, in mutually opposite directions away from the associated diagonals of the rhombus spanning the intermediate plane.

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.

Irradiated points and light receiving points are arranged such that sampling points are arranged over an entire spherical head with no vacant space. The sampling points are arranged to cover the entire spherical head by combining a plurality of rhombic shells and inverting the respective positions of irradiated points and light receiving points in the adjacent shells. As a result, a whole brain probe capable of covering the entire head is provided to allow an image of the whole brain to be viewed as a single image.

A touch panel and a display device are disclosed. Either a cell or a cell, which is formed by the intersections of silver fine wires which form either first electrodes or second electrodes, forms parallelogram shapes (preferably rhomboids), having opposite angles wherein intersection angles are obtuse angles and intersection angles are acute angles. The first electrodes and / or the second electrodes have an adhesive (OCA) deployed thereupon, which has a loss coefficient (tan δ) of 0.13 or more at 140° C. and 1 Hz, and a reserve elasticity of 8.9×104 Pa or less at 25° C. and 1 Hz.

The invention "Trio-meter"is a multipurpose instrument by using- "Multi-slotted link sliding assembly mechanism" - for triangle solutions including 'Pythagoras theorem' as a ready reckoner (Fig.II). Useful instrument with marker block attachment to draw and measure straight lines, lengths, arcs, semi circles, circles, bicircles, tricircles, parallelograms, rhombuses, trapezoids, parallel lines and triangles with fractional and accurate measurements easily and quickly (Fig. Ill to VIII). The novel instrument with trisector attachments, trisects an angle and multiplies an angle into double, triple & quadruple as well as reduces an angle in to two-third^ half, one third and quarter fractionally and accurately (Fig. IX). It comprises three slotted links with in-built main measuring scales, which are also working as sides of a triangle, three vernier calipers with three protractors and three indicators, assembled by centre pins, with all necessary attachments, parts and components (1 to 99) for complete operations and perfect functioning.

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.

A method for mass-production butchering of a chuck roll of beef includes: sectioning the chuck roll anterior to and generally parallel to the first rib to separate a neck portion thereof from a remainder thereof, sectioning the remainder into a first portion and a second portion substantially along a natural seam, the first portion comprising rhomboideus, spinalis dorsi, and serratus ventralis muscles, and the second portion comprising multifidus dorsi, complexus, and longissimus dorsi muscles; sectioning the first portion to substantially remove the rhombolideus and the spinalis dorsi therefrom, leaving a denuded serratus ventralis; sectioning the serratus ventralis into a first set of separate portions. The method may further include: sectioning the second portion into a second set of separate portions, each separate portion in the second set including the multifidus dorsi, complexus, and longissimus dorsi muscles.

A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a “whiskering” problem common in prior art multifilament braid-supported tubular membranes. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by monofilaments. When the braid is supported on a plasticized PVA cable it can be infiltrated with membrane polymer which, when coagulated embeds the braid positioning it around the lumen. The spiral weave, free of any circumferentially constricting monofilament, when embedded in film, allows the membrane to be biaxially distensible. In other words, the membrane has “give” not only in the axial or longitudinal direction but also in the radial direction. “Give” in the radial direction permits soiled membranes to be backwashed under higher pressure than in a comparable braid which is not radially distensible.

The methods disclosed herein of generating three-dimensional lattice structures and reducing stress shielding have applications including use in medical implants. One method of generating a three-dimensional lattice structure can be used to generate a structure lattice and / or a lattice scaffold to support bone or tissue growth. One method of reducing stress shielding includes generating a structural lattice to provide sole mechanical spacing across an area for desired bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. Some methods are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.

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.

Signal line conductors passing through vertical vias in an insulative substrate for supporting and interconnecting integrated circuit chips are provided with shielding conductors in adjacent vias that link respective power and ground planes. The shielding conductors' presence in positions around a signal via is made possible through the employment of power plane and ground plane conductive grids that are laid out in rhomboid patterns. The power plane and ground plane grids possess a left-right mirror relation to one another and are displaced to place the rhomboid's corners to avoid overlapping any of the grid lines.

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.

In an automatic focus adjusting mechanism, a test sample having a patterned surface is mounted on a mount table, and an light beam passing through a slit formed in a field stop is applied to the patterned surface of the test sample. The light beam reflected from the test sample is split into two segment light beams. Focus adjusting aperture stops having respective apertures formed rhomboid are provided across the optical paths of the segment light beams. The amounts of the segment light beams passing through the rhomboid apertures are detected by light receiving units. Based on the difference between the detected light amounts, the position of the mount table is controlled by the focus adjusting unit.

A bioreactor for anaerobic, aerobic and anoxic digestion of organic matter from wastewater, having a bottom anaerobic zone where the wastewater is fed where anaerobic bacteria produces biogas and the sludge produced is deposited on the bottom and subsequently extracted. An anoxic middle zone contains denitrifying bacteria which converts nitrates to nitrogen, and an aerobic zone at the upper part where at least one biological contact rotor is disposed, which degrade organic matter remaining in the water. The growth of nitrifying bacteria converts ammonia nitrogen into nitrites and nitrates. The tank has a plurality of rhomboids for biogas, sludge and scum collection that join together form a intermediate polyhedral separator panel. The rhomboids joined together define conical collectors with connecting nozzles of ducts from a capture and conduction network of biogas and funnel-shaped manifolds with connecting nozzles of ducts that define a capture and conduction network of sludge and scum.

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.