Patents by Inventor Kevin Edward Burgess
Kevin Edward Burgess has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20140105747Abstract: A centrifugal pump impeller includes front and back shrouds and a plurality of pumping vanes therebetween, each pumping vane having a leading edge in the region of an impeller inlet and a trailing edge, the front shroud has an arcuate inner face in the region of the impeller inlet, the arcuate inner face having a radius of curvature (Rs) in the range from 0.05 to 0.16 of the outer diameter of the impeller (D2) The back shroud includes an inner main face and a nose having a curved profile with a nose apex in the region of the central axis which extends towards the front shroud, there being a curved transition region between the inner main face and the nose. Fr is the radius of curvature of the transition region and the ratio Fr/D2 is from 0.32 to 0.65. Other ratios of various dimensions of the impeller are also described.Type: ApplicationFiled: December 13, 2013Publication date: April 17, 2014Applicant: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
-
Publication number: 20140044545Abstract: A slurry pump impeller which includes a front shroud and a back shroud each having an inner main face with an outer peripheral edge and a central axis, a plurality of pumping vanes extending between the inner main faces of the shrouds, the pumping vanes being disposed in spaced apart relation. Each pumping vane includes a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edges of the shrouds with a passageway between adjacent pumping vanes. Each passageway has associated therewith a discharge guide vane, each discharge guide vane being disposed within a respective passageway and located closer to one or the other of the pumping vanes and projecting from the inner main face of at least one of the or each shrouds.Type: ApplicationFiled: August 19, 2013Publication date: February 13, 2014Applicant: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
-
Patent number: 8622706Abstract: 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.Type: GrantFiled: May 20, 2008Date of Patent: January 7, 2014Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Garth Norman Cantrill
-
Patent number: 8608445Abstract: A centrifugal pump impeller includes front and back shrouds and a plurality of pumping vanes therebetween, each pumping vane having a leading edge in the region of an impeller inlet and a trailing edge, the front shroud has an arcuate inner face in the region of the impeller inlet, the arcuate inner face having a radius of curvature (Rs) in the range from 0.05 to 0.16 of the outer diameter of the impeller (D2) The back shroud includes an inner main face and a nose having a curved profile with a nose apex in the region of the central axis which extends towards the front shroud, there being a curved transition region between the inner main face and the nose. Fr is the radius of curvature of the transition region and the ratio Fr/D2 is from 0.32 to 0.65. Other ratios of various dimensions of the impeller are also described.Type: GrantFiled: May 27, 2009Date of Patent: December 17, 2013Assignee: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
-
Patent number: 8511998Abstract: A slurry pump impeller which includes a front shroud and a back shroud each having an inner main face with an outer peripheral edge and a central axis, a plurality of pumping vanes extending between the inner main faces of the shrouds, the pumping vanes being disposed in spaced apart relation. Each pumping vane includes a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edges of the shrouds with a passageway between adjacent pumping vanes. Each passageway has associated therewith a discharge guide vane, each discharge guide vane being disposed within a respective passageway and located closer to one or the other of the pumping vanes and projecting from the inner main face of at least one of the or each shrouds.Type: GrantFiled: May 27, 2009Date of Patent: August 20, 2013Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
-
Patent number: 8454305Abstract: An air diffuser device suitable for use in an air diffuser system for a centrifugal pump the pump including a pump casing with a pumping chamber therein, an impeller mounted within the pumping chamber for rotation about a rotation axis, the impeller including a front side and a rear side. The air diffuser system comprises one or more passages extending through the impeller from the front side to the rear side, the or each passage having a first opening at the rear side and a second opening at the front side of the impeller.Type: GrantFiled: April 4, 2008Date of Patent: June 4, 2013Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
-
Patent number: 8287231Abstract: A pressure relief arrangement for a pump, which includes a pump housing assembly with a pumping chamber therein, is provided in the pump housing assembly of the pump and includes a section mounted for movement between a normal operating position and a venting position, further includes a shearing element adapted to retain the section in the normal operating position, the section being mounted such that upon pressure within the pumping chamber increasing to a specified level, the pressure acts on the section and the shearing element will fail thereby permitting movement of the section from the normal operating to the venting position.Type: GrantFiled: August 25, 2008Date of Patent: October 16, 2012Assignee: Weir Minerals Australia Ltd.Inventor: Kevin Edward Burgess
-
Patent number: 8221066Abstract: An air diffuser system for an impeller for a centrifugal pump has least one channel (36) with first opening (40) through the backside (14) and a second opening (42) through the front side (38) of the impeller (12). Tubes (44) are associated with each channel (36) and extend from the backside (14) of the impeller (12). Tube ends (48) are oriented in the direction of rotation (46) of the impeller (12).Type: GrantFiled: April 10, 2006Date of Patent: July 17, 2012Assignee: Weir Minerals Australia, Ltd.Inventor: Kevin Edward Burgess
-
Publication number: 20110164841Abstract: A lubricant retainer for use in a pump bearing assembly, the bearing assembly which in a first operating configuration is lubricated by a relatively highly viscous lubricant, and which in a second operating configuration is lubricated by a less-viscous lubricant, the bearing assembly comprising a bearing housing having a bore extending therethrough for receiving a pump drive shaft, spaced-apart bearing mounting zones within said bore with a chamber therebetween, each bearing mounting zone arranged for the in use receipt of a bearing therein. Each zone has associated therewith one lubricant retainer, the lubricant retainer being adapted to be mounted within the bore adjacent the bearing mounting zone with which it is associated so as to form a barrier between the bearing mounting zone and the chamber when the pump bearing assembly is in the first operating configuration, the retainer being removed when the pump bearing assembly is in the second operating configuration.Type: ApplicationFiled: June 12, 2009Publication date: July 7, 2011Inventors: Kevin Edward Burgess, Michael Christopher Foreman
-
Publication number: 20110158795Abstract: A centrifugal pump impeller includes front and back shrouds and a plurality of pumping vanes therebetween, each pumping vane having a leading edge in the region of an impeller inlet and a trailing edge, the front shroud has an arcuate inner face in the region of the impeller inlet, the arcuate inner face having a radius of curvature (RS) in the range from 0.05 to 0.16 of the outer diameter of the impeller (D2) The back shroud includes an inner main face and a nose having a curved profile with a nose apex in the region of the central axis which extends towards the front shroud, there being a curved transition region between the inner main face and the nose. Fr is the radius of curvature of the transition region and the ratio Fr/D2 is from 0.32 to 0.65. Other ratios of various dimensions of the impeller are also described.Type: ApplicationFiled: May 27, 2009Publication date: June 30, 2011Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
-
Publication number: 20110142610Abstract: A pump casing for a centrifugal pump, which comprises an inlet opening, a discharge outlet, and a transition surface extending between an inner peripheral surface of the main pumping chamber and an inner peripheral surface of the discharge outlet, the transition surface arranged for separating an in use exit flow of material in the discharge outlet from an in use recircula tion flow of material in the main pumping chamber. The transition surface has a cutwater having a profiled section which comprises a protrusion 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 is reduced.Type: ApplicationFiled: June 5, 2009Publication date: June 16, 2011Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
-
Publication number: 20110142599Abstract: An adjustment assembly for pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis. The adjustment assembly is operable to cause relative displacement between the side part and the main part of the pump casing. The adjustment assembly includes a drive device and an actuator which can be activated externally of the pump, the drive device being operable to cause the relative displacement of the side part in response to activation of said actuator, the relative displacement capable of being a combination of axial and rotational movement.Type: ApplicationFiled: June 12, 2009Publication date: June 16, 2011Inventors: Kevin Edward Burgess, Michael Christopher Foreman
-
Publication number: 20110129344Abstract: A slurry pump impeller which includes a front shroud and a back shroud each having an inner main face with an outer peripheral edge and a central axis, a plurality of pumping vanes extending between the inner main faces of the shrouds, the pumping vanes being disposed in spaced apart relation. Each pumping vane includes a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edges of the shrouds with a passageway between adjacent pumping vanes. Each passageway has associated therewith a discharge guide vane, each discharge guide vane being disposed within a respective passageway and located closer to one or the other of the pumping vanes and projecting from the inner main face of at least one of the or each shrouds.Type: ApplicationFiled: May 27, 2009Publication date: June 2, 2011Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
-
Patent number: 7806654Abstract: A pump housing assembly which includes a pump casing and a liner, where the pump casing includes at least two parts which are adapted to be connected together in an assembled position with the pump casing having opposed front and rear sides and a common junction region which is disposed within one or more planes which pass through the front and rear sides of the assembled pump casing, the liner being formed in one piece and having sealing portions that are activated to provide a seal between the liner and the pump casing.Type: GrantFiled: August 25, 2008Date of Patent: October 5, 2010Assignee: Weir Minerals Australia, Ltd.Inventor: Kevin Edward Burgess
-
Publication number: 20100135765Abstract: 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.Type: ApplicationFiled: May 20, 2008Publication date: June 3, 2010Inventors: Kevin Edward Burgess, Garth Norman Cantrill
-
Publication number: 20100111686Abstract: An air diffuser device suitable for use in an air diffuser system for a centrifugal pump the pump including a pump casing with a pumping chamber therein, an impeller mounted within the pumping chamber for rotation about a rotation axis, the impeller including a front side and a rear side. The air diffuser system comprises one or more passages extending through the impeller from the front side to the rear side, the or each passage having a first opening at the rear side and a second opening at the front side of the impeller.Type: ApplicationFiled: April 4, 2008Publication date: May 6, 2010Inventors: Kevin Edward Burgess, Michael Christopher Foreman
-
Publication number: 20090269201Abstract: An air diffuser system for an impeller for a centrifugal pump has least one channel (36) with first opening (40) through the backside (14) and a second opening (42) through the front side (38) of the impeller (12). Tubes (44) are associated with each channel (36) and extend from the backside (14) of the impeller (12). Tube ends (48) are oriented in the direction of rotation (46) of the impeller (12).Type: ApplicationFiled: April 10, 2006Publication date: October 29, 2009Inventor: Kevin Edward Burgess
-
Patent number: D609249Type: GrantFiled: February 13, 2009Date of Patent: February 2, 2010Assignee: Weir Minerals Australia, Ltd.Inventors: Michael Christopher Foreman, Kevin Edward Burgess
-
Patent number: D609250Type: GrantFiled: February 13, 2009Date of Patent: February 2, 2010Assignee: Weir Minerals Australia, Ltd.Inventors: Wen Jie Liu, Garry Bruce Glaves, Kevin Edward Burgess
-
Patent number: D631065Type: GrantFiled: October 23, 2009Date of Patent: January 18, 2011Assignee: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Garry Bruce Glaves, Wen-Jie Liu