Abstract: Techniques for providing dependency resolution for lazy snapshots in a storage cluster with a delta log-based architecture. The techniques include creating a dependency relationship between a parent metadata page and a child metadata page, receiving one or more new delta updates of the parent metadata page, and writing, to a metadata delta log, the new delta updates of the parent metadata page as specialized delta update entries that preserve or maintain the new delta update values and their corresponding original (old) delta update values. By preserving or maintaining both the new delta update values and the corresponding old delta update values of the parent metadata page in the metadata delta log, constraints pertaining to the order of de-staging the delta updates of the parent and child metadata pages can be reduced.

Abstract: A fixing bolt contains: a flexible sleeve and a locking nail. The flexible sleeve is provided with an internal threaded section above a conical hole, multiple-annular protrusions, and multiple projected wings. Furthermore, the flexible sleeve defines a plurality of slits to communicate with the conical hole, and extend across the multiple annular protrusions to be joined at a central axis of the flexible sleeve, below the conical hole, so that a lower portion of the flexible sleeve is formed into a plurality of paws. The locking nail includes an external threaded section configured to be in threaded engagement with the internal threaded section of the flexible sleeve, a driving head, and a forcing section. Furthermore, the forcing section of the locking nail includes a cylindrical portion and a conical portion to facilitate expanding or retracting the paws of the flexible sleeve, thus anchoring or de-anchoring the flexible sleeve.

Abstract: A connector is disclosed for interconnecting a baluster having a recess on at least one end thereof to a railing component. The connector has a first body portion having an outer surface and an interface surface with a mounting groove thereon. The connector also has a second body portion having an outer surface and an interface surface with a mounting groove thereon. The interface surface of the second body portion having a mating portion adapted to receive a portion of the interface surface on the first body portion, and a hinge connecting the first body portion to the second body portion.

Abstract: The present screw anchor advantageously has two fins radially extending from the body of the screw anchor, where the fins additionally extend above the top end of the body. This unique fin design permits the user to drive the screw anchor into the worn screw hole within a wood substrate so that the screw anchor is substantially flush or recessed within the worn screw hole. When the fins are aligned with the grain of the wood, the fins split the wood at the grain and prevent rotation of the screw anchor. Because the screw anchor is flush or recessed, the anchor does not interfere with the installation of hardware overtop the anchor, such as a hinge. Furthermore, the original screw, such as in the case of a door hinge, can be reused to create an invisible repair.

Abstract: Disclosed is a sleeve for a transfixation device for an external skeletal fixator having a longitudinal axis, a right portion, a left portion, an outer wall, an interior wall and a lumen. The sleeve is implantable across the opposed cortices of a long bone. The lumen is adapted to receive a pin that is connectable to an external supporting structure of the external skeletal fixator. The lumen includes at least one contraction in the right portion and at least one contraction in the left portion. The at least two contractions serve as supports for the pin for avoiding contact between the pin and the interior wall, except at the contractions. Also disclosed is a transfixation device for an external skeletal fixator including a sleeve such as described and one or more pins.

Abstract: A nut (30) includes a main portion (30A) formed with a bolt insertion hole (31), into which a bolt is insertable, and a wedge portion (30B) projecting from the main portion (30A) in a radially outward direction of the bolt insertion hole (31) and having a width smaller than that of the main portion (30A). Thus, parts (27B) extending lateral to the wedge portion (30B) in parallel with a projecting direction of the wedge portion (30B) can be made thicker than parts (27A) extending lateral to the main portion (30A). Therefore, the parts (27B) that resist an accompanying rotation of the nut (30) can be thickened without enlarging a housing (20), with the result that strength against the accompanying rotation of the nut (30) can be ensured.

Abstract: An implant for intersomatic fusion of two adjacent vertebrae, particularly by an operation that was performed in posterior manner. The implant has a first implant part and a second implant part that is adjustable relative to the former, for the purpose of distraction. The first implant part and the second implant part are structured so that they supplement one another, in a complementary manner, in the non-distracted state, to form a pipe that is divided in the longitudinal direction. Guide surfaces that extend radially in the distraction direction, and rest against one another are formed on the first implant part and the second implant part. The relative position of the guide surfaces is fixed in place. An instrument for the placement and distraction of the implant is also provided.

Abstract: A core guide assembly for a stationery article includes a screw member with a predetermined length while externally bearing a male screw. A support member is connected to the one-sided end of the screw member while centrally bearing a support bar protruded opposite to the screw member. The support bar has a support protrusion with one or more portions bearing a large volume in the radial direction. The support protrusion is formed at the end portion of the support bar by one or two steps while bearing a shape of a cone or a disk, or arranged at the support bar by two or more steps in a zigzag while bearing a shape of a semi-cone or a semi-disk.

Abstract: Disclosed is an expansible fastening device (10) for placement in a hole preformed in a base member for use in attaching a component part to the base using a conventional nut (24) and bolt (26). The fastening device includes a fastener body (12) having two body sections (28a, and 28b). The body sections when positioned together form a central cavity (30) within the fastener body which encloses and retains the nut and a wedge (14). Each longitudinal section includes a fin (16) which extends longitudinally and projects radially outward from the central region of each body section. Further, each body section includes primary and secondary teeth (18 and 20) which extend circumferentially about the outer surface of the sections. In operation the bolt is engaged with the nut and rotated, pushing the wedge from the fastening device. As the wedge is driven away from the nut, the teeth and fins are driven into the base member.

Abstract: An expansion anchor assembly to be secured in a borehole is made up of an expansion sleeve and an anchor rod. The expansion sleeve has a plurality of expansion sections arranged to be deflected radially outwardly by drawing an expansion cone on the front end of the anchor rod into the sleeve. Each expansion section has a circumferentially extending weakened section forming a bending location. The weakened section is located between a radially inner and a radially outer recess in the expansion section. Each of the recesses has a rectilinear base extending tangentially relative to the expansion sleeve axis with the bases located in a plane disposed normal relative to the expansion sleeve axis.

Abstract: An expansion anchor assembly is made up of an expansion sleeve and an anchor rod. At one end, the expansion sleeve has a plurality of separate expansion parts radially deflectable about bending locations, by drawing an expansion cone on one end of the anchor rod into engagement with the expansion parts. Expansion parts can be displaced radially outwardly into a conically widened undercut in a borehole. To achieve surface area contact with the undercut, when the expansion parts are deflected outwardly, the radially inner and outer surfaces of the expansion parts are provided with a radius of curvature increasing from the bending locations to the free ends of the expansion parts.

Abstract: An expansion dowel includes an axially extending expansion sleeve and an expansion member rolled from a section of sheet metal. The sleeve has a leading end and a trailing end and the inside surface of the sleeve is threaded for an axially extending section from the trailing end. The thread is formed before the sheet metal is rolled. To assure there is no misalignment of the thread along the butt joint, tangs and recesses are formed along the edges of the butt joint so that the edges interengage one another when the sheet metal section is rolled. By interengaging the butt joint edges, the sleeve does not expand circumferentially when a bolt is threaded into the trailing end of the sleeve.

Abstract: A vibration-proof anchor bolt assembly which is insertable in a hole drilled in masonry for fastening a fixture to the surface thereof, the diameter of the hole being slightly larger than that of the bolt. The bolt is provided with an enlarged head that lies against the fixture and is engageable by a torque tool, the threaded rear section of the bolt being of reduced diameter. The upper portion of the rear section is encircled by an expansible shell which when expanded is forced against the wall of the hole to anchor the bolt therein. Received on the lower portion of the rear section is a wedge nut having an upper conical zone and a lower ring zone whose normal diameter is larger than that of the hole, slots being cut into said ring zone to define spring fingers. These fingers are inwardly flexed by the wall of the hole when the assembly is inserted therein, thereby compressing the ring and constricting the internally-threaded bore thereof.

Abstract: The device for fastening an object to a wall or the like by a push-in mounting, comprises an externally threaded bolt, at one end of which a nut can be threadedly advanced, and on the other end which is at least partially conical and whose maximum diameter is at most equal to the diameter of the bolt, has displaceably mounted thereon an expander element composed of two half-shell like parts. The two parts of the expander element are provided at their longitudinal edges opposite to one another in the mounted condition with integral lobes disposed transversely symmetrical and, when viewed in development, point-symmetrical, in relation to one another. The edges of the lobes are formed in such a way as to provide, when disposed on the externally threaded bolt, a form-locking connection.