Weir Minerals Australia Ltd.

Artarmon, Australia

Weir Minerals Australia Ltd.

Artarmon, Australia
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Patent
Weir Minerals Australia Ltd | Date: 2017-07-26

A pump assembly and components therefor including an impeller which has flow inducer elements on an inner surface of a front shroud thereof, a flow directing device or strainer having passageways for delivering material to the impeller and at least one flow circulating passageway and a pump casing having an intake section with flow distribution vanes in the region of a feed opening adjacent the intake section.


Patent
Weir Minerals Australia Ltd | Date: 2017-07-26

An impeller which can be rotated about a rotation axis X-X, the impeller comprising a shroud having opposed inner and outer faces and an outer peripheral edge portion remote from the rotation axis, a plurality of pumping vanes projecting from the inner face of the shroud, a plurality of auxiliary vanes projecting from the outer face of the shroud, one or more of the auxiliary vanes having an inner edge which is closer to the rotation axis and an outer edge which is closer to the peripheral edge portion of the shroud, the auxiliary vanes extending in a direction between the rotation axis towards the outer peripheral edge portion of the shroud, one or more of the auxiliary vanes having a leading side and a trailing side each of which extends from the inner edge to the outer edge with an upper side spaced from the outer face of the shroud, and at least one projection extending from the trailing side of one or more of the said auxiliary vanes, and preferably each auxiliary vane.


Patent
Weir Minerals Australia Ltd. | Date: 2016-08-22

A pump intake device comprising a main body which includes a side wall section having an inner side and an outer side, an intake section extending from the outer side of the side wall section and an intake passage extending through the intake section, the intake passage having an inner surface and an entry end and an exit end with a central axis extending between the entry and exit ends, a first portion of the inner surface having one or more first guides thereon for directing fluid passing through the intake passage so that in use said fluid leaves the exit end at the first portion with an exit angle which is inclined relative to the central axis.


Patent
Weir Minerals Australia Ltd | Date: 2017-06-07

A pump liner for a centrifugal pump wherein the pump liner comprises a main pumping chamber, an inlet to the main pumping chamber and a discharge outlet extending from the main pumping chamber, wherein the pump liner is formed from at least two elastomeric compounds including a first compound and a second compound, the first compound having a different hardness to the second compound and wherein the liner is composed of the second compound at locations which in use are subject to erosive, impingement and/or directional wear.


Patent
Weir Minerals Australia Ltd | Date: 2017-01-04

A screen assembly (10) for a horizontal screen machine has a screen body (12) diverging axially from an inlet end (13). A base wall portion (15) mounts the screen body (12) for rotation and includes eight substantially radial webs (16). An annular wall portion (21) is located adjacent the inner end (13) and includes drain passages (24) adapted to drain discontinuities in a bonding layer comprising a moisture cure polyurethane sealant/adhesive overlying the annular wall portion (21). Wear resistant tungsten carbide elements (26) include a plurality of apertures (27) extending through a wear face to a bonding face. Voids (32) in the discontinuous bonding layer (31) provide fluid interconnection between the apertures (27) and the drain passages (24). A replaceable screen member (33) is releasably secured at an inner ring frame (22) and an outer ring frame (36) of the screen body (12).


Patent
Weir Minerals Australia Ltd. | Date: 2016-03-17

A valve assembly able to be mounted with a liquid container, the valve assembly comprising: a housing having a passageway that extends through the housing; a breather float valve mounted within the housing, the breather float valve movable between an open position to allow gas to pass through the passageway and a closed position that prevents liquid from passing through the passageway; a liquid inlet, forming part of the housing, the liquid inlet allowing fluid to pass into the housing; and an inlet float valve mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and a closed position that prevents the flow of fluid through the liquid inlet.


Patent
Weir Minerals Australia Ltd | Date: 2016-06-21

According to one aspect, a lifter bar may be provided that is formed at least partially from an elastomeric material and includes at least one attachment formation embedded at least partially in the elastomeric material. In other aspects, the attachment formation may include a longitudinal spine that may include apertures, may be substantially planar, and may include a track.


Patent
Weir Minerals Australia Ltd | Date: 2016-10-05

A pump casing (30) for a centrifugal pump, which comprises an inlet opening (32), a discharge outlet (38), and a transition surface (40) extending between an inner peripheral surface (37) of the main pumping chamber (34) and an inner peripheral surface (39) of the discharge outlet (38), the transition surface (40) arranged for separating an in use exit flow of material in the discharge outlet (38) from an in use recirculation flow of material in the main pumping chamber (34). The transition surface (40) has a cutwater (41) having a profiled section which comprises a protrusion (42) which extends irregularly from an otherwise generally rounded arched or U-shaped transition surface and is configured such that, in use, the velocity and/or turbulence resulting from the in use flow of the material being pumped in the main pumping chamber (34) is reduced.


Patent
Weir Minerals Australia Ltd | Date: 2016-08-17

A coupling pin for use in a pump housing, the pump housing including an outer casing and an inner pump liner, the coupling pin being suitable for locating the liner and casing relative to one another, the coupling pin including a shank and a head at one end of the shank. The head includes a cammed surface thereon which is adapted to co-operate with a follower on the liner, and a locating section on a remote or terminal end of the head which is adapted to be positioned against a seat in the outer casing when fitted. The arrangement is such that rotation of the coupling pin causes the follower to track along the cammed surface so as to cause relative movement between the outer casing and the inner pump liner.


Patent
Weir Minerals Australia Ltd | Date: 2016-06-21

A lifting device for use, in one embodiment, to hoist a lifter bar is described. A method of affixing a lifting device to a lifter bar is also described.

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