Abstract: An underreamer which may be mounted on a core drill to allow single phase underreaming or creation of a bore hole of larger diameter beneath a pilot hole. A plurality of levers are powered by a plurality of corresponding jacks which are adapted to exert pressure on the levers in order to cause them to extend beyond the periphery of the expander body. Each lever contains at least one roller-cutter rotatably mounted to the lever so that when the levers are forced outward, the roller-cutters crush rock beyond the periphery of the expander body and thus underream the bore hole.

Abstract: Data concurrence processes and systems for maintaining concurrence of parallel sets of data stored in telecommunication Network Elements. According to a preferred embodiment of such processes, an originating entity such as a Service Node sends a Request Message to a Network Element such as a Source Service Control Point in order to update data on that Source. The Source then sends a Request Message to the other Network Element, such as a Target Service Control Point, in order to update the parallel data contained in that Service Control Point. The Network Elements whose data are updated may send appropriate Result Messages in order to verify integrity of the data. Synchronization according to the preferred embodiment is preferably implemented by time stamping particular data in Request Messages at the first level, such as in the Service Node; the Request Messages and the updated data, together with Result Messages, then contain that time stamp which greatly simplifies reconciliation and verification efforts.

Abstract: A sports catch glove according to the present invention offers superior control and effectiveness over conventional catch gloves. The glove incorporates a dished tensegrity stiffener in its distal finger portion that weighs less but is more than ten times stiffer than stiffeners employed in conventional gloves. To allow the wearer to gain maximum benefit from this added stiffness in the distal finger portion, the glove also incorporates a close-fitting inner glove, at least a portion of which is made of an elastomeric material. The inner glove keeps the wearer's hand more closely coupled to the glove than in conventional gloves, thus allowing the wearer to maintain control over the glove under the severe forces imposed when catching fast-moving, hard objects.