Patents Assigned to United Wire Limited
  • Patent number: 10364623
    Abstract: This disclosure is generally drawn to systems, devices, apparatus, and/or methods related to shaker/filtration systems for drilling environments. Specifically, the disclosed systems, devices, apparatus, and/or methods relate to extended handles on screens used in shaker/filtration systems for drilling environments. In some examples, extended screen handle(s) may include a fastening portion and a handling portion. The fastening portion may be adapted to be coupled to a screen along a side of the screen, and the handling portion may be coupled to the fastening portion. The handling portion may extend above the screen and extend about 25-100% of the length of the side of the screen.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: July 30, 2019
    Assignee: United Wire Limited
    Inventor: Andrew Ralph
  • Patent number: 9687878
    Abstract: A vibratory separator screen assembly, the screen assembly including a frame having a top surface and a bottom surface having a tapered recess configured to receive a locating element disposed on the vibratory separator.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: June 27, 2017
    Assignee: United Wire Limited
    Inventors: Claire Galloway, Andrew Ralph
  • Patent number: 9440261
    Abstract: A separating screen has a rectangular body (1) one side of which has a seal for sealing against an abutting side of an adjacent screen or shaker basket. The seal is provided by an elongate sealing strip (9) of resilient material held in place on the side of the body by a retaining strip (5) which can be integrally molded with the body (1) or may be a separately formed component.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: September 13, 2016
    Assignee: United Wire Limited
    Inventor: Andrew Ralph
  • Patent number: 9156061
    Abstract: A shaker screen including a composite frame, a removable grid attached to the composite frame, and at least one filtering element attached to the removable grid is disclosed. A method including forming a composite frame, forming a removable grid, attaching at least one filtering element to the removable grid, and attaching the removable grid to the composite frame is disclosed. Additionally, a method for rebuilding a shaker screen, the method including removing a first screen assembly from a composite frame, the screen assembly having a removable grid and at least one filtering element, and attaching a second screen assembly to the composite frame is disclosed.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 13, 2015
    Assignee: United Wire Limited
    Inventor: Graham Robertson
  • Patent number: 9149839
    Abstract: A shaker screen including a sealing element and a composite frame, wherein the sealing element is attached to a basal perimeter of the composite is disclosed. Furthermore, a method of forming a shaker screen including forming a sealing element, forming a composite frame, and attaching the sealing element to the composite frame, wherein the sealing element is disposed along at least one surface of a basal perimeter of the composite frame is disclosed. Also, a shaker screen attachment including a sealing element, a composite frame, and a wedge is disclosed. The shaker screen attachment further includes wherein the sealing element is attached to a basal perimeter of the composite frame, and wherein the wedge is disposed between the composite frame and a shaker basket such that the sealing element compresses against the shaker basket.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 6, 2015
    Assignees: M-I L.L.C., United Wire Limited
    Inventors: Brian S. Carr, Graham Robertson, Eric Cady
  • Patent number: 9073268
    Abstract: There is provided a plug for repairing a sifting or filtering screen, the plug comprising a body (1) of a first material supporting an area of a second material which is more resilient than the first material, in use the area of a second material serving as a seal (2) to engage and seal against the screen in order to plug a cell aligned with a damaged area of the screen. A second plug has a body (101) formed with holes (108) to receive securing members such as screws, the holes being positioned to enable the securing members (109) to pass into the material of the sifting or filtering screen in order releasably to secure the plug in a cell aligned with a damaged area of the sifting screen.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: July 7, 2015
    Assignee: United Wire Limited
    Inventors: Graham Robertson, Claire Galloway, Andrew Ralph
  • Publication number: 20140217002
    Abstract: A wedging apparatus for a vibrating separator including an outer polygonal surface to secure a screen to the vibrating separator, wherein the outer polygonal surface extends substantially along the length of a screening surface of the vibrating separator is disclosed. A screen for a vibratory separator including a frame having a top surface and a bottom surface, and at least one filter element connected to the frame, wherein the bottom surface comprises a wedge engagement profile is also disclosed. A vibrating separator apparatus including a first side wall, a second side wall opposite the first side wall, a bottom wall connecting the first side wall and the second side wall, a first screen having a top surface and a bottom surface, at least one wedging apparatus disposed along the length of the bottom surface of the first screen is also disclosed.
    Type: Application
    Filed: July 6, 2012
    Publication date: August 7, 2014
    Applicants: UNITED WIRE LIMITED, M-I L.L.C.
    Inventors: Benjamin Lanning Holton, Brian S. Carr, Graham Robertson, John Fedders
  • Patent number: 8789707
    Abstract: There is provided a screen frame adapted for use in a shaker to separate solids from liquid/solid mixture and to which woven wire mesh is to be attached, comprising a plurality of intersecting elongate members (12) defining a plurality of openings (10), or cells, wherein at least one protrusion (26) in the form of an elongate rib extends partway across each opening (10).
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: July 29, 2014
    Assignee: United Wire Limited
    Inventor: Graham Robertson
  • Patent number: 8763814
    Abstract: The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixture and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of ribs extending between opposing regions of the perimeter, the ribs defining an upper horizontal face to which a screen is to be attached, wherein at least one rib extends downwardly from the upper face at an angle off set to vertical, and to a shaker comprising at least one such screen frame.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: July 1, 2014
    Assignee: United Wire Limited
    Inventors: Graham Robertson, Claire McLean, Andrew Ralph
  • Publication number: 20140083913
    Abstract: A shaker screen for attachment to a bed of a shaker includes a screen frame having at least one mesh screen attached to the top side of the screen frame, wherein the screen frame is preferentially bowed prior to attaching the mesh screen to the screen frame.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicants: UNITED WIRE LIMITED, M-I L.L.C.
    Inventors: Graham Robertson, Brian S. Carr, Robert M. Barrett
  • Patent number: 8597559
    Abstract: A shaker screen for attachment to a bed of a shaker includes a screen frame having at least one mesh screen attached to the top side of the screen frame, wherein the screen frame is preferentially bowed prior to attaching the mesh screen to the screen frame.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 3, 2013
    Assignees: M-I L.L.C., United Wire Limited
    Inventors: Graham Robertson, Brian S. Carr, Robert M. Barrett
  • Patent number: 8596464
    Abstract: A frame over which woven wire mesh is to be stretched and secured to form a sieving screen and which can be used to screen solids from drilling mud recovered from down-hole when drilling for oil or gas. The frame is a rectilinear moulded plastics frame having edge regions by which it is secured in place in a shaker. Within the frame is a plurality of rectilinear windows formed by an orthogonal array of intersecting ribs also of moulded plastics material. Some of the ribs are internally reinforced by rigid metal members which extend orthogonally between hollow box-section members which define a sub-frame for reinforcing the four edge regions of the frame. The orthogonal members are secured at their ends to the sub-frame. The ends of the sub-frame members are joined at the four corners of the sub-frame. In this way not are only the edge regions of the frame reinforced internally but so also are some of the orthogonally intersecting ribs, so as thereby to produce a rigid frame for the screen.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: December 3, 2013
    Assignee: United Wire Limited
    Inventor: Graham Alexander Robertson
  • Patent number: 8517179
    Abstract: A vibratory separator including a screen frame and a screen attachment. The screen attachment including at least one vertically disposed latch on the screen frame, at least one vertically disposed catch on the screen frame, and at least one bearing surface proximate the at least one vertically disposed catch. Additionally, a method of securing adjacent screens including inserting a vertically disposed latch of a first screen into a catch of a second screen, wherein the inserting includes contacting the latch of the first screen with a bearing surface of the second screen adjacent the catch of the second screen. The method further includes forming a planar alignment of the first screen to the second screen.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 27, 2013
    Assignees: M-I L.L.C., United Wire Limited
    Inventors: Graham Robertson, Brian S. Carr, Eric Cady, Claire Galloway
  • Publication number: 20130199012
    Abstract: A shaker screen including a composite frame, a removable grid attached to the composite frame, and at least one filtering element attached to the removable grid is disclosed. A method including forming a composite frame, forming a removable grid, attaching at least one filtering element to the removable grid, and attaching the removable grid to the composite frame is disclosed. Additionally, a method for rebuilding a shaker screen, the method including removing a first screen assembly from a composite frame, the screen assembly having a removable grid and at least one filtering element, and attaching a second screen assembly to the composite frame is disclosed.
    Type: Application
    Filed: March 11, 2013
    Publication date: August 8, 2013
    Applicant: United Wire Limited
    Inventor: United Wire Limited
  • Patent number: 8496116
    Abstract: A method of forming a shaker screen includes forming a frame, and attaching a first sealing element to at least one side of an outer perimeter of the frame, wherein the attaching comprises aligning a first mating surface of the frame to a second mating surface of the first sealing element, and wherein the first mating surface of the frame includes an extension, and the second mating surface of the first sealing element includes a groove configured to align with the extension. A system of sealing shaker screens includes a first screen and a second screen disposed adjacent the first screen, wherein a first sealing element of a first frame and a portion of the second screen interact to provide a seal between the first screen and the second screen.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: July 30, 2013
    Assignees: M-I L.L.C., United Wire Limited
    Inventors: Brian S. Carr, Graham Robertson, Eric Cady
  • Patent number: 8393474
    Abstract: A shaker screen including a composite frame, a removable grid attached to the composite frame, and at least one filtering element attached to the removable grid is disclosed. A method including forming a composite frame, forming a removable grid, attaching at least one filtering element to the removable grid, and attaching the removable grid to the composite frame is disclosed. Additionally, a method for rebuilding a shaker screen, the method including removing a first screen assembly from a composite frame, the screen assembly having a removable grid and at least one filtering element, and attaching a second screen assembly to the composite frame is disclosed.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: March 12, 2013
    Assignee: United Wire Limited
    Inventor: Graham Robertson
  • Patent number: 8246771
    Abstract: A method of manufacturing two screens in a jig by laying a length of woven wire cloth across two rectangular frames laid side by side in the jig with longer edges abutting, and orientating the cloth so that the warp wires extend continuously across the two screens. The cloth is tensioned and bonded to the frames after which it is severed along the join and surplus cloth is trimmed away from the edges of the frame. If the cloth has a square mesh and the warp wires are of greater cross-section than the weft wires, the warp wires will extend across the width of the frame, and if the cloth has a rectangular mesh, the greater number of warp wires per unit length also extends across the width of the frame. In each case warp wires will resist the stresses across the width of the central region of each opening.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 21, 2012
    Assignee: United Wire Limited
    Inventor: Graham Robertson
  • Publication number: 20120152452
    Abstract: A method of manufacturing two screens in a jig by laying a length of woven wire cloth across two rectangular frames laid side by side in the jig with longer edges abutting, and orientating the cloth so that the warp wires extend continuously across the two screens. The cloth is tensioned and bonded to the frames after which it is severed along the join and surplus cloth is trimmed away from the edges of the frame. If the cloth has a square mesh and the warp wires are of greater cross-section than the weft wires, the warp wires will extend across the width of the frame, and if the cloth has a rectangular mesh, the greater number of warp wires per unit length also extends across the width of the frame. In each case warp wires will resist the stresses across the width of the central region of each opening.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 21, 2012
    Applicant: UNITED WIRE LIMITED
    Inventor: Graham Robertson
  • Patent number: 8104623
    Abstract: A screen is described for use in a vibrating machine for separating solids from liquid material, comprising woven wire cloth of orthogonal warp and weft wires, tensioned and bonded to a support structure defining at least one rectangular opening across which the cloth extends. The orientation of the cloth is chosen so that the warp wires extend across the width (i.e. shorter dimension) of the opening(s). If the cloth has a square mesh and the warp wires are of greater cross section than the weft wires, the warp wires will extend across the width of the frame, and if the cloth has a rectangular mesh, the greater number of warp wires per unit length will also extend across the width of the frame, so that in each case warp wires will resist in use the stresses across the width of the central region of the or each opening.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: January 31, 2012
    Assignee: United Wire Limited
    Inventor: Graham Robertson
  • Patent number: RE45746
    Abstract: A method of forming a shaker screen includes forming a frame, and attaching a first sealing element to at least one side of an outer perimeter of the frame, wherein the attaching comprises aligning a first mating surface of the frame to a second mating surface of the first sealing element, and wherein the first mating surface of the frame includes an extension, and the second mating surface of the first sealing element includes a groove configured to align with the extension. A system of sealing shaker screens includes a first screen and a second screen disposed adjacent the first screen, wherein a first sealing element of a first frame and a portion of the second screen interact to provide a seal between the first screen and the second screen.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: October 13, 2015
    Assignees: M-I L.L.C., United Wire Limited
    Inventors: Brian S. Carr, Graham Alexander Robertson, Eric Cady