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).
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Patent number: 11274669Abstract: 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: November 27, 2017Date of Patent: March 15, 2022Inventors: Kevin Edward Burgess, Garth Norman Cantrill
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Publication number: 20180100508Abstract: 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: November 27, 2017Publication date: April 12, 2018Inventors: Kevin Edward Burgess, Garth Norman Cantrill
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Patent number: 9897090Abstract: 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: December 31, 2013Date of Patent: February 20, 2018Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Garth Norman Cantrill
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Patent number: 9759224Abstract: 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: GrantFiled: April 17, 2014Date of Patent: September 12, 2017Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Patent number: 9651055Abstract: 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: August 19, 2013Date of Patent: May 16, 2017Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
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Patent number: 9618006Abstract: 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 the bore with a chamber therebetween, each bearing mounting zone arranged for the in use receipt of a bearing therein, and wherein 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: GrantFiled: February 26, 2015Date of Patent: April 11, 2017Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Patent number: 9422938Abstract: 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: April 10, 2015Date of Patent: August 23, 2016Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
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Publication number: 20150337864Abstract: 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 recirculation 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 15, 2015Publication date: November 26, 2015Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
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Publication number: 20150240831Abstract: 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: February 26, 2015Publication date: August 27, 2015Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Publication number: 20150211522Abstract: 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: April 10, 2015Publication date: July 30, 2015Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
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Patent number: 9057385Abstract: 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 recirculation 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: GrantFiled: May 28, 2014Date of Patent: June 16, 2015Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
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Patent number: 9028203Abstract: 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: June 3, 2013Date of Patent: May 12, 2015Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Patent number: 9004869Abstract: 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: December 13, 2013Date of Patent: April 14, 2015Assignee: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna
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Patent number: 8967874Abstract: 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: GrantFiled: June 12, 2009Date of Patent: March 3, 2015Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Publication number: 20140341705Abstract: 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: April 17, 2014Publication date: November 20, 2014Applicant: Weir Minerals Australia, Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Publication number: 20140271159Abstract: 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 recirculation 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: May 28, 2014Publication date: September 18, 2014Applicant: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
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Patent number: 8790077Abstract: 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: GrantFiled: June 12, 2009Date of Patent: July 29, 2014Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Patent number: 8747062Abstract: 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 recirculation 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: GrantFiled: June 5, 2009Date of Patent: June 10, 2014Assignee: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Wen-Jie Liu, Luis Moscoso Lavagna, Garry Bruce Glaves
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Publication number: 20140154071Abstract: 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: June 3, 2013Publication date: June 5, 2014Inventors: Kevin Edward Burgess, Michael Christopher Foreman
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Publication number: 20140112755Abstract: 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: December 31, 2013Publication date: April 24, 2014Applicant: Weir Minerals Australia Ltd.Inventors: Kevin Edward Burgess, Garth Norman Cantrill