Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving performance and/or leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween. Other embodiments are directed to methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving performance and/or leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween. The plurality of diamond grains includes a first amount being about 5 weight % to about 65 weight % of the plurality of diamond grains and a second amount being about 18 weight % to about 95 weight % of the plurality of diamond grains. The first amount exhibits a first average grain size of about 0.5 ?m to about 30 ?m. The second amount exhibits a second average grain size that is greater than the first average grain size and is about 10 ?m to about 65 ?m. Other embodiments are directed to methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving performance and/or leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween. The plurality of diamond grains includes a first amount being about 5 weight % to about 65 weight % of the plurality of diamond grains and a second amount being about 18 weight % to about 95 weight % of the plurality of diamond grains. The first amount exhibits a first average grain size of about 0.5 ?m to about 30 ?m. The second amount exhibits a second average grain size that is greater than the first average grain size and is about 10 ?m to about 65 ?m. Other embodiments are directed to methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Abstract: Present ice skates 10 have a relatively great distance between the sole and the surface of the blades 40 for contacting the ice in use. This leads to instability. The present invention provides an ice skate comprising a boot or shoe, a sole and at least one blade 140 integral therewith, wherein the distance between the blade surface, for contact with ice in use, and the underside of the sole is approximately 20 mm or less.

Abstract: The present invention includes an illuminated sports insignia for a vehicle comprising: a sports insignia; a body portion, where said body portion is behind the sports insignia; a bulb within the body portion; and a plug extending from the body portion, where said plug provides a means to connect to a trailer hitch receptacle. In one particular embodiment, the illuminated sports insignia includes an oval shape. Alternatively, the illuminated sports insignia may include a rectangular, a square or an octagon shape. The illuminated sports insignia may be synced with the brake lights of the vehicle.