An additive manufacturing apparatus includes: a build enclosure having an upper platform defining a planar worksurface and an inner side wall extending downwardly from the upper platform, the inner side wall defining a build chamber; an actuator in sealing engagement with the inner side wall and configured to move vertically along the inner side wall; and a build platform releasably secured to the actuator.

A centralizer can be produced from a process comprising forming a plurality of composite bow spring from a fiber and a resin, curing the composite bow springs in a desired shape to form a plurality of cured bow springs, disposing a first portion of a resin-wetted fiber about a cylindrical mandrel to form a plurality of collars, disposing the plurality of cured bow springs onto the mandrel with the bow spring ends in contact with the first portion of resin-wetted fiber, disposing a second portion of the resin-wetted fiber about the cylindrical mandrel, curing the collars to form a cured centralizer, and pressing the mandrel out of the cured centralizer.

The present invention relates to a nozzle for cleaning a substrate capable of spraying deionized water for cleaning a substrate to the substrate, the nozzle including a first body made of a resin material and provided with a first part of a deionized water passage and a deionized water supply hole to supply the deionized water, a second body made of a resin material and provided with a second part of the deionized water passage and a plurality of spray holes to spray the deionized water to the substrate, a fusible protrusion provided in the first body or the second body along the deionized water passage and configured such that a part thereof is fused during ultrasonic welding, so as to couple the first body and the second body together, and a fusible protrusion accommodating part formed in the first body or the second body to accommodate the fusible protrusion.

Certain polyamide beads or granules are useful as a sustaining material for underground natural or artificial cracks of the earth's crust essentially employed for the extraction of hydrocarbons such as crude oil or natural gas; such polyamide beads have a spherical or ellipsoidal shape and have a surface free of concave portions, advantageously having a uniform shape, and having a mean diameter lower than or equal to 1.7 mm and a porosity lower than 0.1 ml/g, and are produced using a particular cutting device/extruder.

The invention relates to a workpiece having a shape produced by thermoforming from at least one sheet (3) of plastic material, such as polycarbonate, and at least one applied element (6, 8; 7, 9) that is applied to the at least one sheet and secured there, characterised in that the securing of the at least one applied element to the at least one sheet takes place at least partially by means of crimping.

One example includes a three-dimensional (3D) printed object including a first lattice structure and a second lattice structure. The first lattice structure includes a first matrix having a first length, a first width, and a first height. The second lattice structure includes a second matrix having a second length, a second width, and a second height. The second length times two is a factor of the first length, the second width times two is a factor of the first width, and the second height times two is a factor of the first height.

A prototype aluminum mold for stampers that is used to manufacture stampers having a fine irregular surface structure on the surface thereof and containing aluminum and magnesium, wherein the content of magnesium is 0.1% by mass to 3% by mass, the content of silicon is 100 ppm by mass or less, the total content of elements other than aluminum and magnesium is 500 ppm by mass or less, and the number of magnesium silicide particles having an equivalent diameter of 10 nm or more on the surface of the prototype aluminum mold for stampers is 10/1000 m.sup.2 or less.

The present invention describes a hierarchical graphitized carbon foam comprising an interconnected macroporous structure with an ordered mesoporous wall structure, a process for its preparation, as well as to a process for the synthesis of a variety of bimodal porous organic polymer and/or inorganic metal oxide materials.

An example fabrication system includes a light source, a resin container, and a base plate on which resin is cured using the light source so as to build up an object one layer at a time. The disclosed base plate includes a build surface and an anchor channel that extends into the base plate from the build surface. The anchor channel is a recess in the base plate configured to have a narrow width that is closer to an opening to the build surface than a broad width. The base plate can also have a light source that emits light into the anchor channel to cure resin within the anchor channel. Resin anchors cured within the anchor channel to conform to the anchor channel resist being extracted, and an object formed on the build surface remains anchored during fabrication via adhesion to the resin anchors.

A fishing rod that includes an elongated, tapered rod blank at least a portion of which is quadrilateral in cross section, the quadrilateral portion of the rod blank diminishing in cross-sectional area toward a tip end of the rod blank, the quadrilateral portion of the rod blank comprising a sandwich-structured composite of a core disposed between facings, the core less dense than the facings, the quadrilateral portion of rod blank less stiff in a casting direction than transverse to the casting direction; fishing line guides mounted at intervals along the length of the rod blank; a reel seat mounted at the base end of the rod blank; and a handle mounted at the base end of the rod blank adjacent to the reel seat.