Abstract: A method of producing a controlled reactivity zinc oxide including the step of: heat treatment a zinc oxide powder or precursor thereof at a temperature of at least 450° C.

Abstract: A dynamically configurable contextual gamer options menu provides options to online game players. The game options are determined as a function of the game being played and relationships between game players. Game options are updated, added, and/or deleted dynamically as relationships and context change.

Abstract: A process of producing aluminium and aluminium-containing materials from a solid aluminium-containing feed material is disclosed. The process comprises leaching the aluminium-containing feed material with a leach liquor and forming an aqueous solution containing aluminium ions, extracting aluminium ions from the aqueous solution by contacting the aqueous solution with an organic reagent and loading aluminium ions onto the organic reagent and forming an aluminium complex, and recovering aluminium or an aluminium-containing material from the aluminium complex.

Abstract: A floating water surface cover module, comprising a rim 1, and a shallow dome-shaped cover 2 extending from the top of the rim 1 and formed with a vent 3, the rim and cover being formed with shaped air-filled air-tight cavities 5 spaced around the rim 1 to provide buoyancy, the rim 1 and the cover 2 being configured so that one module will nest within another to form a stable stack.

Abstract: A torque wrench includes a housing having a first opening disposed opposite a second opening. The torque wrench also includes a ratchet wheel disposed in the housing and forming a shaft connecting the first opening and the second opening, a ratchet lever engaging the ratchet wheel to rotate the ratchet wheel in a given direction, and a hydraulically actuated piston disposed in the housing and connected to the ratchet lever to move the ratchet lever between a first position and a second position to rotate the ratchet wheel. The torque wrench further includes a removable drive shaft extending through the shaft to engage the ratchet wheel and be rotated by the ratchet wheel in the given direction and a first seal disposed at the first opening and a second seal disposed at the second opening to create respective seals between the housing and the drive shaft.

Abstract: A method of treating ore particles to facilitate subsequent processing of the ore particles to recover valuable components from the ore is disclosed. The method includes exposing the ore particles to microwave energy and causing structural alteration of the ore particles. In one embodiment structural alteration is achieve without significantly altering the mineralogy, i.e., composition, of the ore. In another embodiment structural alteration is achieved with minimal change to the sizes of the ore particles. In another embodiment the method includes exposing the ore particles to short duration, high energy pulses of microwave energy.

Abstract: A method of leaching a metal value from a heap of a metal-containing ore and a heap leaching operation are disclosed. The method includes establishing a downward flow of a leach liquor through a section of the heap by supplying the leach liquor onto a top surface of the section and allowing the leach liquor (containing metal values in solution) to drain from a lower part of the section. The method is characterized by supplying the leach liquor onto the top surface of the section at a flow rate that is sufficient so that the downwardly flowing leach liquor saturates the section of the heap.

Abstract: A tamper-evident evidence bag including a blank having a central panel and first and second planar shaped and pivotally connected side panels. The bag has an open perimeter edge and is secured along a selected extending side edge to the central panel. Following insertion of items of evidence, first and second pivotally connected side panels are folded from an open position, in which they panels are established in a substantially parallel relationship, to a closed position in which opposingly facing surfaces of are adhered against one another and in order to maintain, in tamper-evident fashion, the items placed within the bag enclosure.

Abstract: A cartridge for an inkjet printing apparatus. A case of molded plastic includes a downwardly-projecting nose section. An opening in the bottom of the nose section is surrounded by an upstanding stand pipe internal to the cartridge. An insert holds a filter and includes a tube section and an upper flange. The insert is selectively removably fixed to the stand pipe to permit ready filter replacement and thereby facilitate reliable recharging of the cartridge.

Abstract: A torque wrench includes a housing having a first opening disposed opposite a second opening. The torque wrench also includes a ratchet wheel disposed in the housing and forming a shaft connecting the first opening and the second opening, a ratchet lever engaging the ratchet wheel to rotate the ratchet wheel in a given direction, and a hydraulically actuated piston disposed in the housing and connected to the ratchet lever to move the ratchet lever between a first position and a second position to rotate the ratchet wheel. The torque wrench further includes a removable drive shaft extending through the shaft to engage the ratchet wheel and be rotated by the ratchet wheel in the given direction and a first seal disposed at the first opening and a second seal disposed at the second opening to create respective seals between the housing and the drive shaft.

Abstract: A tamper-evident evidence bag including a blank having first and second planar shaped and pivotally connected panels. The bag has an open perimeter edge and is secured to first selected facing surfaces of the pivotally connected panels and such that an interior of the bag is communicable through an aperture defined between the panels. The first and second panels are folded from an open position, in which they panels are established in a substantially parallel relationship, to a closed position in which opposingly facing surfaces of are adhered against one another and in order to maintain, in tamper-evident fashion, items placed within the bag enclosure.

Abstract: A method of generating hydrogen gas is disclosed. The method includes a first step of contacting an aqueous solution of a chemical hydride and a catalyst and producing hydrogen gas and a heated hydrogen-depleted solution. The hydrogen gas is recovered and used as required, for example in a fuel cell. The heated solution is brought into direct or indirect heat exchange relationship with a metal hydride, thereby heating the metal hydride and causing desorption of hydrogen from the metal hydride and producing hydrogen gas and cooling the heated solution and producing a cooled solution. The hydrogen gas is recovered and used as required.

Abstract: A process for recovering copper from chalcopyrite is disclosed. The process includes oxidising sulphur in chalcopyrite with a solution under predetermined contact conditions and thereby releasing at least part of the copper in the chalcopyrite into the solution as copper ions. The process includes a subsequent step of reducing sulphur in a solid product from step (a) to a minus two, ie. sulphide, valence state with a solution under predetermined contact conditions. The process further includes a subsequent step of oxidising sulphur in a solid product from step (b) with a solution under predetermined contact conditions and thereby releasing at least part of the remaining copper in the solid product into the solution as copper ions. The process further includes recovering copper from one or more of the solutions from steps (a) and (c).

Abstract: An electrolytic reduction cell for the production of a metal is disclosed. The cell includes a plurality of collector bars (21). Each collector bar includes an elongated first section (27) that contacts the cathode (15) and at least one end section (29) that extends through one of the cell side walls (5) and is electrically connected to the electrical current carrier. The cell is characterised in that, for the purpose of controlling current distribution, the first section of each collector bar includes a core (31) of relatively high electrical conductivity material and an outer housing (33) of a more mechanically and chemically resistant material than the core material and the end section of each collector bar is formed from relatively low thermal conductivity material.

Abstract: A device for removing and disposing of animal waste having a body consisting of a first planar shaped member and a second planar shaped member arranged in parallel extending and proximate fashion to the first planar member so that the planar members define opposingly facing surfaces. First and second elongate handles extend from the planar members and a flexible bag having an open end and a closed end is fitted to the device so that the planar members define a perimeter of the open end. The first and second handles are engaged to outwardly actuate the first and second planar shaped members relative to one another and so that the open end of the bag encompasses a solid waste object setting upon a ground location. The opposingly facing surfaces of the planar shaped members are capable of grasping and elevating the solid waste object and the device is adapted to being inverted to deposit the object with the bag interior.

Abstract: A shaking water bath suitable for laboratory use comprises a wheeled trolley 12 driven with a reciprocating movement along a linear path between guides 30, 30 by a drive mechanism which includes an eccentric rotary drive member 34 and connecting arm 36. The apparatus is contained in a water tank 16 and the trolley 12 supports a removable tray 14 for carrying receptacles containing the material to be agitated. In one position of the tray 14 complementary abutment elements 50, 52 located respectively on the tray and on the trolley interengage to prevent lateral displacement of the tray. Upon turning the tray 14 through 180.degree. and refitting on the trolley these abutment elements 50, 52 no longer interengage to prevent lateral movement, but a drive pin 56 on the tray then engages with a drive socket 58 in the drive mechanism to cause the tray 14 to be driven with an additional component of motion at right angles to the longitudinal direction of reciprocating movement of the trolley 12.

Abstract: A travelling valve assembly utilizing a length of tubing, longer than the production screen, positioned at the end of a wash pipe and lowered into the tubing bore so that the lower end of the tubing is a depth below the production screen. When gravel packing is concluded, the tubing is then placed in position by raising the wash pipe and tubing to the upper seal bore. The wash pipe is then sheared from the tubing assembly. The tubing includes seals at each end, which seat in respective seal bores, for sealing off above and below the production screen. There is further provided a valving mechanism, such as a sliding door valve which is operable from the surface between open and closed positions. While the valving mechanism is closed, the production flow is prevented; however, upon opening the valve through a wire line or shifting tool, production flows through the sliding door valve and up to the surface through the tubing.