Patents by Inventor Martin Cawood

Martin Cawood 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).

  • Patent number: 11674390
    Abstract: Disclosed is a rock bolt assembly including: an elongate bolt extending with distal and proximal ends; a tubular sleeve longitudinally extending between leading and trailing ends on the bolt so at least a proximal end portion projects from the trailing end of the sleeve; and a nozzle docking bush on the proximal end portion between the sleeve's trailing end and the bolt's proximal end. The bush has a cylindrical body between first and second ends, a central hole extending through the body, spaced-apart annular ridges on the cylindrical body, a grout distributing channel between the ridges, and an aperture in the channel connecting the channel and hole. The central hole includes a leading portion ending at the first end, sealingly receiving the trailing end. A trailing portion of the central hole ends at the second end and sealingly engages the bolt. Each annular ridge seals against a grout nozzle.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: June 13, 2023
    Assignee: INNOVATIVE MINING PRODUCTS (PTY) LTD
    Inventors: Brendan Robert Crompton, Martin Cawood, Paolo Ettore Pastorino, Rual Abreu
  • Patent number: 11661847
    Abstract: A single-use sealing bush which is adapted to form a sealing interface between a rock bolt and a nozzle of a grout delivery system, the sealing bush including a cylindrical body defined between a first end and a second end; a hole in the first end of the body that is adapted to receive the rock bolt; a pair of spaced apart annular ridges, on an outer cylindrical surface of the body, between which a grout distributing channel is defined; and an aperture which connects the channel to the recess; wherein each annular ridge is adapted to seal against the nozzle in a position which communicates a grout inlet port of the nozzle with the grout distributing channel.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: May 30, 2023
    Assignee: INNOVATIVE MINING PRODUCTS (PTY) LTD
    Inventors: Brendan Robert Crompton, Martin Cawood, Paolo Ettore Pastorino, Rual Abreu
  • Publication number: 20220018253
    Abstract: A single-use sealing bush which is adapted to form a sealing interface between a rock bolt and a nozzle of a grout delivery system, the sealing bush including a cylindrical body defined between a first end and a second end; a hole in the first end of the body that is adapted to receive the rock bolt; a pair of spaced apart annular ridges, on an outer cylindrical surface of the body, between which a grout distributing channel is defined; and an aperture which connects the channel to the recess; wherein each annular ridge is adapted to seal against the nozzle in a position which communicates a grout inlet port of the nozzle with the grout distributing channel.
    Type: Application
    Filed: November 18, 2020
    Publication date: January 20, 2022
    Inventors: Brendan Robert CROMPTON, Martin CAWOOD, Paolo Ettore PASTORINO, Rual ABREU
  • Patent number: 11215053
    Abstract: A rock anchor assembly includes: a tubular sleeve between first and second ends, having an anchor retaining portion opening on the second end; a rock anchor with an elongate body extending between distal and proximal ends, received in the tubular sleeve with the proximal and distal ends of the body projecting from the first and second ends respectively of the sleeve; a tensioning and locking assemblage on the anchor body between the proximal end and the first end of the sleeve, a forward part being engageable with the first end of the sleeve; and a mechanical anchor engaged to the anchor body at the distal end which, from an unexpanded configuration, expands radially to an expanded configuration. The anchor retaining portion at least partially retains the mechanical anchor in the unexpanded configuration. The anchor retaining portion expands circumferentially to accommodate retracted ingress of the anchor in the expanded configuration.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: January 4, 2022
    Assignee: NCM INNOVATIONS (PTY) LTD
    Inventors: Martin Cawood, Henri Visser, Adrian Berghorst
  • Publication number: 20210381375
    Abstract: Disclosed is a rock bolt assembly including: an elongate bolt extending with distal and proximal ends; a tubular sleeve longitudinally extending between leading and trailing ends on the bolt so at least a proximal end portion projects from the trailing end of the sleeve; and a nozzle docking bush on the proximal end portion between the sleeve's trailing end and the bolt's proximal end. The bush has a cylindrical body between first and second ends, a central hole extending through the body, spaced-apart annular ridges on the cylindrical body, a grout distributing channel between the ridges, and an aperture in the channel connecting the channel and hole. The central hole includes a leading portion ending at the first end, sealingly receiving the trailing end. A trailing portion of the central hole ends at the second end and sealingly engages the bolt. Each annular ridge seals against a grout nozzle.
    Type: Application
    Filed: August 3, 2021
    Publication date: December 9, 2021
    Inventors: Brendan Robert CROMPTON, Martin CAWOOD, Paolo Ettore PASTORINO, Rual ABREU
  • Publication number: 20210071525
    Abstract: A rock anchor assembly includes: a tubular sleeve between first and second ends, having an anchor retaining portion opening on the second end; a rock anchor with an elongate body extending between distal and proximal ends, received in the tubular sleeve with the proximal and distal ends of the body projecting from the first and second ends respectively of the sleeve; a tensioning and locking assemblage on the anchor body between the proximal end and the first end of the sleeve, a forward part being engageable with the first end of the sleeve; and a mechanical anchor engaged to the anchor body at the distal end which, from an unexpanded configuration, expands radially to an expanded configuration. The anchor retaining portion at least partially retains the mechanical anchor in the unexpanded configuration. The anchor retaining portion expands circumferentially to accommodate retracted ingress of the anchor in the expanded configuration.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 11, 2021
    Inventors: Martin CAWOOD, Henri VISSER, Adrian BERGHORST
  • Patent number: 10358921
    Abstract: A friction bolt assembly includes: an expansible sleeve having a tubular body between leading and trailing ends, which body has a longitudinally extending formation about which the body resiliently deforms and which formation extends along at least part of the body, ending at the body leading end; a rod extending through the sleeve body and between first and second ends and on which a projecting part is defined between the trailing end of the sleeve body and the second end; an expansion element on the rod at the first end; a first load bearing formation on the projecting rod part, moveable along the projecting part to abut the sleeve trailing end; a load applicator on the projecting part of the rod; and a second load bearing formation mounted over the projecting part of the rod between the first load bearing formation and the load applicator unit.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 23, 2019
    Assignee: NCM INNOVATIONS (PTY) LTD.
    Inventors: James William Sheppard, Martin Cawood, Paolo Ettore Pastorino
  • Patent number: 10174616
    Abstract: Disclosed is a cable anchor assembly including: a cable anchor body longitudinally extending between leading and trailing ends; a tensioning device with an outer member having first and second ends and a threaded through passage between the ends and an inner member which threadedly engages the threaded passage of the outer member and fixedly attached to the cable anchor body at or towards the trailing end; a faceplate engaging the cable anchor body between the leading end and the tensioning device. In use, with the cable anchor body inserted in a borehole and anchored therein, the faceplate positioned against a rock face and the first end of the outer member abutting the faceplate, the outer member is rotatable relative to the inner member, causing the inner member to move within the passage towards the second end of the outer member, drawing on the cable anchor body, tensioning the body.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: January 8, 2019
    Assignee: NCM INNOVATIONS (PTY) LTD.
    Inventors: Rual Abreu, Martin Cawood, Brendan Robert Crompton
  • Publication number: 20180230801
    Abstract: A friction bolt assembly includes: an expansible sleeve having a tubular body between leading and trailing ends, which body has a longitudinally extending formation about which the body resiliently deforms and which formation extends along at least part of the body, ending at the body leading end; a rod extending through the sleeve body and between first and second ends and on which a projecting part is defined between the trailing end of the sleeve body and the second end; an expansion element on the rod at the first end; a first load bearing formation on the projecting rod part, moveable along the projecting part to abut the sleeve trailing end; a load applicator on the projecting part of the rod; and a second load bearing formation mounted over the projecting part of the rod between the first load bearing formation and the load applicator unit.
    Type: Application
    Filed: September 16, 2015
    Publication date: August 16, 2018
    Inventors: James William SHEPPARD, Martin CAWOOD, Paolo Ettore PASTORINO
  • Patent number: 9982537
    Abstract: A rock bolt includes an elongate metallic body having a first end and an opposed second end, a threaded portion at the second end, for attaching thereto and locating thereon, a nut and a bearing plate, a mechanical anchor at, or at least partially located on, a first end portion of the body and a first resistive anchor, located between the threaded portion and the mechanical anchor.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 29, 2018
    Assignee: NCM INNOVATIONS (PTY) LTD
    Inventors: Martin Cawood, Paolo Ettore Pastorino, Phillipus Van Der Merwe, Samuel Du Plessis
  • Publication number: 20180030832
    Abstract: Disclosed is a cable anchor assembly including: a cable anchor body longitudinally extending between leading and trailing ends; a tensioning device with an outer member having first and second ends and a threaded through passage between the ends and an inner member which threadedly engages the threaded passage of the outer member and fixedly attached to the cable anchor body at or towards the trailing end; a faceplate engaging the cable anchor body between the leading end and the tensioning device. In use, with the cable anchor body inserted in a borehole and anchored therein, the faceplate positioned against a rock face and the first end of the outer member abutting the faceplate, the outer member is rotatable relative to the inner member, causing the inner member to move within the passage towards the second end of the outer member, drawing on the cable anchor body, tensioning the body.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 1, 2018
    Applicant: NCM INNOVATIONS (PTY) LTD.
    Inventors: Rual ABREU, Martin CAWOOD, Brendan Robert CROMPTON
  • Publication number: 20170342836
    Abstract: A rock bolt includes an elongate metallic body having a first end and an opposed second end, a threaded portion at the second end, for attaching thereto and locating thereon, a nut and a bearing plate, a mechanical anchor at, or at least partially located on, a first end portion of the body and a first resistive anchor, located between the threaded portion and the mechanical anchor.
    Type: Application
    Filed: August 18, 2017
    Publication date: November 30, 2017
    Inventors: Martin CAWOOD, Paolo Ettore PASTORINO, Phillipus VAN DER MERWE, Samuel DU PLESSIS
  • Publication number: 20170211386
    Abstract: The invention provides an end anchored rock bolt 20 which includes an elongate cylindrical body 12 which longitudinally extends between a proximal end and a distal end and a plug 18 at the distal end, which plug is diametrically larger than the cylindrical body 12, is at least partially tapered, tapering towards the proximal end, and is integrally formed on the body 12.
    Type: Application
    Filed: August 25, 2015
    Publication date: July 27, 2017
    Applicant: NCM INNOVATIONS (PTY) LTD
    Inventors: Robert James Custers, Martin Cawood, James William Sheppard
  • Publication number: 20160177718
    Abstract: A rock bolt includes an elongate metallic body having a first end and an opposed second end, a threaded portion at the second end, for attaching thereto and locating thereon, a nut and a bearing plate, a mechanical anchor at, or at least partially located on, a first end portion of the body and a first resistive anchor, located between the threaded portion and the mechanical anchor.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 23, 2016
    Inventors: Martin CAWOOD, Paolo Ettore PASTORINO, Phillipus VAN DER MERWE, Samuel DU PLESSIS
  • Patent number: 9200514
    Abstract: A rock anchor includes a cartridge positioned in an elongate tubular body and having a rigid tubular housing. First and second compartments are defined within the cartridge. First and second adhesive components are positioned within the respective first and second compartments and are fluidly separated by a partitioning wall. A mixer is positioned within the elongate tubular body at a leading end of the cartridge. A pressing member is positioned within the cartridge towards a trailing end and includes a bladed formation which is operable to sever the partitioning wall when the bladed formation is caused to advance towards the leading end in response to fluid flowing into the cartridge, to thereby force the first adhesive component from the first compartment and the second adhesive component from the second compartment towards the leading end and into the mixer.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 1, 2015
    Assignee: GIDDICCA (PTY) LTD
    Inventors: Martin Cawood, At Jacobs, Paolo Ettore Pastorino, Diedrick Kapp, Nicholas Marvin, David Charles Tyrer, James William Sheppard, Brendan Robert Crompton
  • Publication number: 20150192015
    Abstract: A rock anchor includes a cartridge positioned in an elongate tubular body and having a rigid tubular housing. First and second compartments are defined within the cartridge. First and second adhesive components are positioned within the respective first and second compartments and are fluidly separated by a partitioning wall. A mixer is positioned within the elongate tubular body at a leading end of the cartridge. A pressing member is positioned within the cartridge towards a trailing end and includes a bladed formation which is operable to sever the portioning wall when the bladed formation is caused to advance towards the leading end in response to fluid flowing into the cartridge, to thereby force the first adhesive component from the first compartment and the second adhesive component from the second compartment towards the leading end and into the mixer.
    Type: Application
    Filed: February 4, 2015
    Publication date: July 9, 2015
    Inventors: Martin Cawood, At Jacobs, Paolo Ettore Pastorino, Diedrick Kapp, Nicholas Marvin, David Charles Tyrer, James William Sheppard, Brendan Robert Crompton
  • Patent number: 8985910
    Abstract: A rock anchor includes an elongate tubular body which extends between a first end and an opposing second end and a cartridge contains a multi-component adhesive system in the tubular body. The cartridge has a rigid tubular housing within which at least one compartment is defined, and in which is contained an adhesive component of the system. The at least one compartment yields to volumetrically reduce under fluid pressure created by a fluid input into the housing, to thereby extrude the adhesive components.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Giddicca (Pty) Ltd
    Inventors: Martin Cawood, At Jacobs, Paolo Ettore Pastorino, Diedrick Kapp, Nicholas Marvin, David Charles Tyrer, James William Sheppard, Brendan Robert Crompton
  • Publication number: 20130294844
    Abstract: This invention relates to an anchoring device and more particularly but not exclusively, to a rock anchor for use in a mining environment, and which combines the functionality of a split set and an attachment anchor. The anchoring device includes a tubular body having a longitudinal slot provided therein, and an elongate anchoring element locatable inside the tubular body. The anchoring element is displaceable between a retracted position in which an end of the anchoring element is located inside the tubular body, and a protruding position, in which at least part of the elongate element protrudes from the tubular element.
    Type: Application
    Filed: August 16, 2011
    Publication date: November 7, 2013
    Inventor: Martin Cawood
  • Publication number: 20130004246
    Abstract: A rock anchor includes an elongate tubular body which extends between a first end and an opposing second end and a cartridge contains a multi-component adhesive system in the tubular body. The cartridge has a rigid tubular housing within which at least one compartment is defined, and in which is contained an adhesive component of the system. The at least one compartment yields to volumetrically reduce under fluid pressure created by a fluid input into the housing, to thereby extrude the adhesive components.
    Type: Application
    Filed: June 7, 2012
    Publication date: January 3, 2013
    Applicant: GIDDICCA (PTY) LTD
    Inventors: Martin Cawood, At Jacobs, Paolo Ettore Pastorino, Diedrick Kapp, Nicholas Marvin, David Charles Tyrer, James William Sheppard, Brendan Robert Crompton