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公开(公告)号：EP2004875A4
公开(公告)日：2009-12-30
申请号：EP07701806
申请日：2007-02-21
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
CPC classification number: C23F13/10 , C23F13/06 , C23F2201/02
Abstract: An anode for use in cathodic protection of steel in concrete is formed from an electrically conductive material such as zinc and an ionically conductive material which is preferably a humectant and/or has a pH greater than 12 to enhance current flow. The materials are intimately intermixed through at least a part of the anode body and compressed into the anode body with an electrical connecting lead formed into a core of the body which is wholly conductive material. Portions of the electrically conductive material are pressed into electrical contact to form a plurality of electrically conductive paths within the anode body. Many of the voids in the body are interconnected to form a plurality of ionically conductive paths through the anode body by causing the humectant to migrate through the voids. The large surface area between the ionically conductive paths and the electrically conductive paths increase significantly the contact surface area of the anode body to increase current flow.
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公开(公告)号：EP2885452A4
公开(公告)日：2016-05-11
申请号：EP13829833
申请日：2013-08-06
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
CPC classification number: E04C5/015 , B28B23/02 , C04B20/1003 , C04B20/1014 , C04B2111/26 , C23F11/00 , D07B7/12 , D07B2201/2077 , D07B2205/2046 , D07B2205/30 , D07B2205/3017 , D07B2501/2023 , E04C5/08 , E04C5/10 , E04G21/12 , G01N19/10 , H01B13/221 , C04B32/02 , D07B2801/16
Abstract: Steel reinforcing cables in concrete are protected against corrosion by injecting a carrier fluid and corrosion inhibitors into interstitial spaces between the wires of the cable at a first location along the cable and causing the fluid to pass through the interstitial spaces between the wires of the cable to a second location along the cable. The cable comprises an array of wires confined together and intimately surrounded by a covering material which is engaged with a periphery of the cable so that there are insufficient interconnected spaces between the cable and the covering material to allow passage of fluid longitudinally along the cable outside the cable itself. The method can be used with pre-stressed concrete, with post-tensioned bonded cables and with extruded un-bonded mono-strand cables.
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公开(公告)号：CA2207709A1
公开(公告)日：1998-12-13
申请号：CA2207709
申请日：1997-06-13
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
Abstract: Restoration of a concrete roadway is effected by application onto the upper surface of the roadway of steel sheets which are used as an anode for electrolytic transfer of ions between the anode and the reinforcing bars of the concrete as cathode. The steel sheets are placed in effect directly on top of the concrete surface so as to communicate forces from the traffic to the concrete surface without the necessity for separate support of the sheets. An intervening layer may be formed of particulate material, a very thin felt or the re may be no intervening layer. The sheets can be formed by two layers of steel with the upper layer embossed and the edges offset so as to define flanges allowing the sheets to be bolted together.
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公开(公告)号：CA2207709C
公开(公告)日：2005-01-18
申请号：CA2207709
申请日：1997-06-13
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
Abstract: Restoration of a concrete roadway is effected by application onto the upper surface of the roadway of steel sheets which are used as an anode for electrolytic transfer of ions between the anode and the reinforcing bars of the concrete as cathode. The steel sheets are placed in effect directly on top o f the concrete surface so as to communicate forces from the traffic to the concret e surface without the necessity for separate support of the sheets. An intervening layer may be formed of particulate material, a very thin felt or there may be no intervening layer. The sheets can be formed by two layers of steel with the upper layer embossed and the edges offset so as to define flanges allowing the sheets to be bolted together.
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公开(公告)号：AU7902098A
公开(公告)日：1999-01-04
申请号：AU7902098
申请日：1998-06-12
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
Abstract: Restoration of a concrete roadway is effected by application onto the upper surface of the roadway of steel sheets which are used as an anode for electrolytic transfer of ions between the anode and the reinforcing bars of the concrete as cathode. The steel sheets are placed in effect directly on top of the concrete surface so as to communicate forces from the traffic to the concrete surface without the necessity for separate support of the sheets. An intervening layer may be formed of particulate material, a very thin felt or there may be no intervening layer. The sheets can be formed by two layers of steel with the upper layer embossed and the edges offset so as to define flanges allowing the sheets to be bolted together. A covering wear layer such as asphalt can be applied on top of the sheets.
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Patent Agency Ranking
公开(公告)号：AT518021T
公开(公告)日：2011-08-15
申请号：AT03779616
申请日：2003-12-08
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
Abstract: Cathodic protection of an existing concrete structure, including a steel member at least partly buried, such as steel rebar, in the concrete structure, is provided by embedding anodes into a fresh concrete layer applied over an excavated patch and/or as a covering overlay. The anodes are embedded at spaced positions or as an array in the layer and connected to the rebar. A corrosion inhibitor is added into the fresh concrete at least at the interface and more preferably in admixture with the fresh concrete which acts to reduce the flow of ionic current to the steel or between the anode member and the steel in the fresh covering material without significantly increasing the resistivity of the fresh covering material and without inhibiting the ionic current between the anode member and the fresh covering material. In this way the current to the steel in the existing concrete is maximized to maximize the cathodic protection to the existing steel which is the primary target.
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公开(公告)号：AT310109T
公开(公告)日：2005-12-15
申请号：AT00903438
申请日：2000-02-02
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
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公开(公告)号：HK1038044A1
公开(公告)日：2002-03-01
申请号：HK01108121
申请日：2001-11-19
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
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公开(公告)号：CA3012387A1
公开(公告)日：2019-02-25
申请号：CA3012387
申请日：2018-07-25
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
Abstract: Sacrificial anodes for installing in an ionically conductive medium at an installation site containing metal requiring cathodic protection are formed by locating anode cores in a tray having dividing members defining a row of side by side chambers with each chamber containing a respective one of the anode cores and casting into the receptacle a covering mortar for the anode cores with each anode core receiving a coating at least partly surrounding the anode core with the connecting wire exposed. The mortar is cast to form frangible bridges between each anode and the next. The trays are stacked and transported to the site where the installer separates and individually installs the anodes into the medium.
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公开(公告)号：DE60024061T2
公开(公告)日：2006-07-20
申请号：DE60024061
申请日：2000-02-02
Applicant: WHITMORE DAVID W
Inventor： WHITMORE DAVID W
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