Abstract: A CVD reactor includes a gas inlet member having a circular outline, and a susceptor that can be heated by a heating device. The gas inlet member has a cooled ceiling panel with outlet openings. The CVD reactor further comprises a shield plate, which adjoins the ceiling panel and has a circular outline. The shield plate has a central zone, an annular zone surrounding the central zone, having a rear side that points toward the ceiling panel, and a flat gas outlet surface pointing toward the process chamber, in which gas outlet openings terminate. The rear side in the central zone defines a rear plane running parallel to the gas outlet surface. The shield plate has a material thickness between 3 to 12 mm, and that the shield plate is spaced apart from the ceiling plate by a gap having a height between 0.3 to 1 mm.

Abstract: A CVD reactor includes a gas inlet member having a circular outline, and a susceptor that can be heated by a heating device. The gas inlet member has a cooled ceiling panel with outlet openings. The CVD reactor further comprises a shield plate, which adjoins the ceiling panel and has a circular outline. The shield plate has a central zone, an annular zone surrounding the central zone, having a rear side that points toward the ceiling panel, and a flat gas outlet surface pointing toward the process chamber, in which gas outlet openings terminate. The rear side in the central zone defines a rear plane running parallel to the gas outlet surface. The shield plate has a material thickness between 3 to 12 mm, and that the shield plate is spaced apart from the ceiling plate by a gap having a height between 0.3 to 1 mm.

Abstract: A CVD reactor includes a gas inlet member having a circular outline, and a susceptor that can be heated by a heating device. The gas inlet member has a cooled ceiling panel with outlet openings. The CVD reactor further comprises a shield plate, which adjoins the ceiling panel and has a circular outline. The shield plate has a central zone, an annular zone surrounding the central zone, having a rear side that points toward the ceiling panel, and a flat gas outlet surface pointing toward the process chamber, in which gas outlet openings terminate. The rear side in the central zone defines a rear plane running parallel to the gas outlet surface. The shield plate has a material thickness between 3 to 12 mm, and that the shield plate is spaced apart from the ceiling plate by a gap having a height between 0.3 to 1 mm.

Abstract: A CVD reactor includes a gas inlet member having a circular outline, and a susceptor that can be heated by a heating device. The gas inlet member has a cooled ceiling panel with outlet openings. The CVD reactor further comprises a shield plate, which adjoins the ceiling panel and has a circular outline. The shield plate has a central zone, an annular zone surrounding the central zone, having a rear side that points toward the ceiling panel, and a flat gas outlet surface pointing toward the process chamber, in which gas outlet openings terminate. The rear side in the central zone defines a rear plane running parallel to the gas outlet surface. The shield plate has a material thickness between 3 to 12 mm, and that the shield plate is spaced apart from the ceiling plate by a gap having a height between 0.3 to 1 mm.

Abstract: A cutting element comprises a table of superhard material bonded to a substrate, wherein the table defines a cutting edge and has a chamfered peripheral edge, and a groove in a sidewall of the cutting element passes through the chamfered peripheral edge, so as to reduce the depth of the chamfer at the location of the groove.

Abstract: A cutting element comprises a table of superhard material bonded to a substrate, wherein the table defines a cutting edge and has a chamfered peripheral edge, and a groove in a sidewall of the cutting element passes through the chamfered peripheral edge, so as to reduce the depth of the chamfer at the location of the groove.

Abstract: A thermally conductive sand shell molding system allows for controlling heat flow in a molten metal infiltrate powdered metal drill bit molding system to differentially cool the mold system to control differential shrinking and accompanying stress concentrations.

Abstract: A thermally conductive sand shell moulding system allows for controlling heat flow in a molten metal infiltrate powdered metal drill bit moulding system to differentially cool the mould system to control differential shrinking and accompanying stress concentrations.

Abstract: A superhard composite material comprising a polycrystalline diamond cutter (PDC) having a cutting surface and cutting edges having a polycrystalline diamond thickness of about 3 mm is integrally formed with a sacrificial catalyst source that is removed later in the processing of the of the cutter.

Abstract: A baffle for use in a lubricant pan of an engine that uses a lubricant having a viscosity. The baffle includes a first sheet and a second sheet substantially aligned with the first sheet, the sheets are sized and shaped to reduce turbulence of the lubricant in the lubricant pan. The baffle also includes a tube having a first end and a second end, whereby at least part of the tube is sandwiched between the first and second sheets. A first tube connector is connected to the first end of the tube. A second tube connector is connected to the second end of the tube. A plurality of draining apertures are formed in the first and second sheets, whereby the size of the draining apertures are based on the viscosity of the lubricant.

Abstract: A brake rotor including a rotor body made of a first material. The rotor body includes a central hub portion and a substantially annular disc portion extending from the central hub portion. The disc portion includes an inner disc surface and an outer disc surface. The brake rotor also includes an inner braking ring and an outer braking ring made of a second material. The inner and outer braking rings are fastened to the rotor body in an orientation substantially parallel with the disc portion and spaced from the respective inner and outer disc surfaces. The brake rotor includes projections extending from at least one of the inner and outer disc surfaces to support thereon the respective one of the inner braking ring and the outer braking ring. The projections are generally configured in elongated diamond-like shapes oriented along an axis extending radially outwardly from the central hub portion.

Abstract: A brake rotor having a rotor body made of a first material. The rotor body includes a disc portion with an inner disc surface and outer disc surface. An inner braking ring made of a second material is positioned on the inner disc surface. The inner braking ring includes at least one projection engaging the rotor body to help prevent the inner braking ring from separating from the inner disc surface. The brake rotor also includes an outer braking ring made of the second material that is positioned on the outer disc surface. The outer braking ring includes at least one projection engaging the rotor body to help prevent the outer braking ring from separating from the outer disc surface.

Abstract: A retainer for pre-attaching fasteners within the bore of a structural member, part, or similar item. The retainer includes a cylindrical body having a main axis, an opening into which a fastener may be inserted, and a plurality of solid walls positioned co-axially around the main axis. In one embodiment, the retainer may be made of plastic such as a thermal plastic which is relatively flexible and soft enough not to scratch or damage metal surfaces or protective coatings. Each wall has a top portion and a bottom portion and is separated from at least one of the other plurality of walls by a gap. The retainer also has a first beveled ring located near the top portion of each of the walls, and a second beveled ring located near the bottom portion of each of the walls.