Patents by Inventor Barend Jacobus Jordaan
Barend Jacobus Jordaan 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: 11434762Abstract: A mobile tunnel boring unit is disclosed, comprising a support body driven by first drive means, the first drive means including a pair of spaced apart crawler tracks in contact with the tunnel floor and related track driving means to move the tracks. A cutter head drive means is located at an operatively front end of the boring unit, to which a rotatable cutter head can be fitted and rotatingly driven, in use, the cutter head comprising a full face cutter head fitted with cutters to bore a tunnel face. The cutter head is arranged to allow cuttings to pass through the cutter head for discharge into a muck hopper and onto a first conveyor arrangement, the cutter head drive means and a rear portion of the cutter head defining aligned central apertures to accommodate the muck hopper and a front part of the first conveyor arrangement. A telescopic shield arrangement is provided to shield the boring unit.Type: GrantFiled: July 31, 2018Date of Patent: September 6, 2022Assignee: DRILLING TECHNICAL SERVICES (PTY) LTDInventors: Barend Jacobus Jordaan, Gerhard Pretorius, Johannes Nicolaas Jacobus Calitz, Williem Hermanus Roothman
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Publication number: 20220056801Abstract: According to a first aspect of the invention there is provided a cutter head arrangement comprising a cutter head portion including a (substantially cylindrical) cutter head side wall to define a chamber (or cavity) surrounded by the cutter head side wall. A substantially circular rim portion extends from (a distal end of) the cutter head side wall, the rim portion defining a working, contact face of the cutter head portion. A recessed wall portion extends away from the rim portion inwardly into the chamber so as to be surrounded by the cutter head side wall, with the rim portion and/or the recessed wall portion being fitted with a plurality of cutter elements, to enable the cutter head portion to blind bore a pilot hole in use. The recessed wall portion that extends away from the rim portion inwardly into the chamber is a substantially conical body so as to define a conical recess (proximate a central region of the cutter head portion, at a distal end of the cutter head portion).Type: ApplicationFiled: December 11, 2019Publication date: February 24, 2022Applicant: MASTER SINKERS (PTY) LTD.Inventors: Nicolaas Bodenstein GOODWIN, Barend Jacobus JORDAAN
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Patent number: 10947845Abstract: A shaft enlargement arrangement for a boring system comprises a hollow column proximate a lower end of the boring system. A reamer section comprising a downwardly tapering first cutter head arrangement is rotatably fitted to the hollow column, with a first drive being provided to rotate the first cutter head arrangement relative to the hollow column so as to bore downwardly a hole having a diameter corresponding substantially to the diameter of the first cutter head arrangement. A boring head arrangement is fitted to an operatively lower end, the boring head arrangement terminating in a downwardly tapering second cutter head arrangement to bore a leading or pilot hole, having a diameter that is less than the diameter of the first cutter head arrangement, as the boring system proceeds to bore downwardly.Type: GrantFiled: September 21, 2017Date of Patent: March 16, 2021Assignee: MASTER SINKERS (PTY) LTDInventors: Barend Jacobus Jordaan, Nicolaas Bodenstein Goodwin, Daniel Coenraad Pretorius, Louis Germishuys, Gerhard Pretorius
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Publication number: 20200370434Abstract: A mobile tunnel boring unit is disclosed, comprising a support body driven by first drive means, the first drive means including a pair of spaced apart crawler tracks in contact with the tunnel floor and related track driving means to move the tracks. A cutter head drive means is located at an operatively front end of the boring unit, to which a rotatable cutter head can be fitted and rotatingly driven, in use, the cutter head comprising a full face cutter head fitted with cutters to bore a tunnel face. The cutter head is arranged to allow cuttings to pass through the cutter head for discharge into a muck hopper and onto a first conveyor arrangement, the cutter head drive means and a rear portion of the cutter head defining aligned central apertures to accommodate the muck hopper and a front part of the first conveyor arrangement. A telescopic shield arrangement is provided to shield the boring unit.Type: ApplicationFiled: July 31, 2018Publication date: November 26, 2020Applicant: DRILLING TECHNICAL SERVICS (PTY) LTDInventors: Barend Jacobus JORDAAN, Gerhard PRETORlUS, Johannes Nicolaas Jacobus CALITZ, Williem Hermanus ROOTHMAN
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Patent number: 10697246Abstract: A shaft enlargement arrangement for a boring system is provided, the shaft enlargement arrangement comprising a hollow column proximate a lower end of the boring system; a first cutter head that is rotatably fitted to the hollow column, with first drive means being provided to rotate the first cutter head relative to the hollow column so as to bore downwardly a hole having a diameter corresponding substantially to the diameter of the first cutter head; and a boring head arrangement fitted to an operatively lower end of the column, the boring head arrangement terminating in a second cutter head to bore a leading hole as the boring system proceeds to bore downwardly. In an embodiment, the first cutter head comprises a support body carrying a winged arrangement, the support body being rotatably fitted to the column, the winged arrangement comprising a plurality of wings extending from the support body, each wing being fitted with, or comprising, a plurality of first cutter elements.Type: GrantFiled: January 25, 2016Date of Patent: June 30, 2020Assignee: MASTER DRILLING SOUTH AFRICA (PTY) LTD.Inventors: Nikolaus Kleuters, Daniel Coenraad Pretorius, Barend Jacobus Jordaan, Louis Germishuys, Nicolaas Bodenstein Goodwin, Gareth Robert Sheppard
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Publication number: 20200018163Abstract: A shaft enlargement arrangement for a boring system is provided, the shaft enlargement arrangement comprising a hollow column proximate a lower end of the boring system. A reamer section comprising a downwardly tapering first cutter head arrangement is rotatably fitted to the hollow column, with first drive means being provided to rotate the first cutter head arrangement relative to the hollow column so as to bore downwardly a hole having a diameter corresponding substantially to the diameter of the first cutter head arrangement. A boring head arrangement is fitted to an operatively lower end, the boring head arrangement terminating in a downwardly tapering second cutter head arrangement to bore a leading or pilot hole, having a diameter that is less than the diameter of the first cutter head arrangement, as the boring system proceeds to bore downwardly.Type: ApplicationFiled: September 21, 2017Publication date: January 16, 2020Inventors: Barend Jacobus Jordaan, Nicolaas Bodenstein Goodwin, Daniel Coenraad Pretorius, Louis Germishuys, Gerhard Pretorius
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Publication number: 20180010392Abstract: A shaft enlargement arrangement for a boring system is provided, the shaft enlargement arrangement comprising a hollow column proximate a lower end of the boring system; a first cutter head that is rotatably fitted to the hollow column, with first drive means being provided to rotate the first cutter head relative to the hollow column so as to bore downwardly a hole having a diameter corresponding substantially to the diameter of the first cutter head; and a boring head arrangement fitted to an operatively lower end of the column, the boring head arrangement terminating in a second cutter head to bore a leading hole as the boring system proceeds to bore downwardly. In an embodiment, the first cutter head comprises a support body carrying a winged arrangement, the support body being rotatably fitted to the column, the winged arrangement comprising a plurality of wings extending from the support body, each wing being fitted with, or comprising, a plurality of first cutter elements.Type: ApplicationFiled: January 25, 2016Publication date: January 11, 2018Applicant: Masters Sinkers (PTY) Ltd.Inventors: Nikolaus Kleuters, Daniel Coenraad Pretorius, Barend Jacobus Jordaan, Louis Germishuys, Nicolaas Bodenstein Goodwin, Gareth Robert Sheppard
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INTEGRATED INSPECTION AND MAINTENANCE RAISE BORING METHOD AND AN ASSOCIATED DRILL STRING ARRANGEMENT
Publication number: 20160201396Abstract: A raise boring method is disclosed including the steps of cutting a raise with a raise boring arrangement comprising a surface-mounted drilling unit from which a hollow drill string, comprising a plurality of hollow drill pipes fitted together, extends downwardly through a pre-drilled pilot hole, with a reamer head to cut the raise being fitted to the end of the drill string; stopping the cutting process; lowering a cable through the hollow drill string towards the bottom of the raise; fitting an inspection device at the bottom of the raise to the cable extending through the hollow drill string, the inspection device comprising a controller to receive data obtained by the inspection device; operating the inspection device so as to inspect the side wall below where the reamer head is cutting; communicating the data obtained by the inspection device to an inspection station; and determining whether maintenance is required on the side wall.Type: ApplicationFiled: August 22, 2014Publication date: July 14, 2016Inventor: Barend Jacobus Jordaan