1308 results about "Isoetes triquetra" patented technology

A heat-treating plate has support elements projecting from an upper surface thereof. The support elements are located at apexes of equilateral triangles arranged regularly and continually. The heat-treating plate and a substrate placed on the support elements form a minute space therebetween which is sealed by a sealer. The substrate is sucked by reducing the pressure in the minute space to a negative pressure through exhaust bores. Since all the distances between adjoining support elements are equal, the substrate sags in the same amount between these support elements. With such arrangement of the support elements, sagging of the substrate is inhibited efficiently by a reduced number of support elements.

A floating power generation assembly comprises at least three floating units (900) floating on a body of water, and at least three anchors (916) secured to a solid surface beneath the body of water, each of the floating units (900) being provided with a power generator, the floating units (900) being arranged substantially at the vertices of at least one equilateral triangle. Ship borne apparatus for deploying the floating units of such a power generation assembly and a novel multiple wind turbine assembly are also described.

A white beam with high color-rendering index is formed by uniting a collimated red beam and a collimated blue-green beam, the latter having as its source a blue LED with a green phosphor. The white beam is formed by a prism with an amber low-pass dichroic filter. The prism cross-section can be either a square or an equilateral triangle. The triangular prism can have one third of its mass reduced by stepped facets. Both types of prism can be elongated to accommodate multiple collimators. Switching between white, red, and blue-green allows application to police vehicles.

A hex-axis horizontal movement dynamic simulator is aimed at Modular Design without hydraulic or pneumatic system but which were conventionally used in the so called Stewart Platform; this dynamic simulator comprises three sets of movement control unit with symmetrical structure located at the positions relative to each other forming three sides of an equilateral triangle, and a load-carrying platform which connected to the three movement control by means of three sets of universal-joint yoke mechanism each relative position located on the load-carrying platform are each other arranged to form as three sides of an equilateral triangle too; with this type of arrangement, this dynamic simulator have a 6-degree of freedom motion when a sets of movement control unit makes different rectilinear motion, the load-carrying platform will generate a combination of spatial translation motion and angular motion.

A block which can be easily assembled into a large variety of shapes and sizes using a smaller number of kinds of joints at a low cost. The assembled block includes equilateral triangular block plates, square block plates, and joints through which the block plates are coupled together. Each of the joints is formed of a single, flexible and bendable plate having wing portions on both sides thereof. The block plates are made of a flexible material and have edges and receptacles each provided along one of the edges for accepting one of the wing portions of the joints. The receptacles are each formed with a guide pocket. Any two the block plates can be coupled together through any of the joints by inserting the respective wing portions of the joint into one of the receptacles of one of the two block plates through the corresponding guide pocket and into one of the receptacles of the other of the two block plates through the corresponding guide pocket.

The invention discloses a regular tetrahedral symmetrical deployable mechanism unit which comprises 16 three-rod intersected connecting nodes and 24 equilong connecting rod units, wherein each three-rod intersected connecting node is provided with three revolute pairs, and the three-rod intersected connecting node is respectively connected with three connecting rod units through the three revolute pairs, and the two ends of the each connecting rod unit are respectively connected with different three-rod intersected connecting nodes through the revolute pairs; and the axial leads of the three revolute pairs on each three-rod intersected connecting node are located in a same plane, and a triangle formed by the intersection of the axial leads of the three revolute pairs is an equilateral triangle, a connecting rod installing position of each revolute pair is arranged at the midpoint of an edge of the equilateral triangle, and a connecting rod unit is perpendicular to the axial lead of the revolute pair connected with the connecting rod unit. The deployable mechanism unit disclosed by the invention is just composed of connecting rods and revolute pairs, so that the deployable mechanism unit is simple in structure, beautiful in modelling, convenient to manufacture, and easy to be folded and unfolded.

In a luminous display element, a retro-reflector is provided on the back side of an organic EL layer which includes an emission layer whose state changes between an emission state and a non-emission state. The retro-reflector includes a corner cube array, and reflects incident light in the same direction as an incident direction. A unit structure of the corner cube array is a form of a triangular pyramid which is made up of rectangular equilateral triangles having three faces, and a light shielding process is performed on the periphery of a base angle of the rectangular equilateral triangle. Thus, it is possible to prevent an image from being reflected, so that it is possible to provide the luminous display element whose contrast ratio and the utilization efficiency of emission are high.

A turning tool including a basic body having a pocket, a shim plate mounted in the pocket, and an indexable turning insert mounted in the pocket. The pocket opens in a front surface and in a side surface of the basic body, and accommodates two spaces spaced-apart level-wise, a lower space housing the shim plate and delimited by a bottom surface and two side support surfaces, which form an acute angle with each other, one of which is a primary side support surface and the other one a secondary side support surface, and an upper space housing the turning insert. The shim plate includes an upperside and an underside between which a pair of primary and secondary contact surfaces extend, which form an acute angle with each other and are urged against the primary and secondary side support surfaces in the pocket, as well as a pair of inactive surfaces extend in the form of an outer end surface and an outer side limiting surface, which together delimit a supporting corner section of the shim plate. The turning insert has a triangular basic shape and includes an upperside, an underside resting against the upperside of the shim plate, and three side surfaces that are situated in a first imaginary, equilateral triangle and therefore converge in pairs at an angle of 60° toward corners in which cutting edges are included. First and second tightening elements are arranged to detachably fix the shim plate and the turning insert individually. The secondary side support surface of the pocket is formed on a lug having a top surface situated under the turning insert. Respective acute angles (ε, γ) between the primary and secondary side support surfaces of the pocket, and the primary and secondary contact surfaces of the shim plate, are smaller than 60°. The underside of the turning insert and the upperside of the shim plate are engaged with each other via an interface that includes female-like and male-like engagement members, which are in engagement with each other to prevent turning of the turning insert.