公开(公告)号：US07520974B2

公开(公告)日：2009-04-21

申请号：US11678932

申请日：2007-02-26

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/06

CPC classification number: C23F13/06 ,  C23F13/02 ,  C23F2201/02 ,  C23F2213/31

Abstract: Corrosion of steel in a concrete structure such as a column in sea water occurs primarily at the zone which is subject to a wetting and drying action and is inhibited using cathodic protection by attaching to the column at the zone an impervious sealed sleeve which carries no anode itself but which cooperates with an anode body in the water. The sleeve acts to inhibit permeation of oxygen through the concrete to the steel and at the same time acts to promote transfer of current from the anode through the concrete under the sleeve by preventing drying by preventing moisture escape. An anode arrangement may be provided only at the top of the sleeve to consume oxygen in that area. The sleeve may be applied over a layer of grout. The top edge surface of the grout may be sealed from the sleeve to the column.

Abstract translation: 在海水中的混凝土结构中的钢的腐蚀主要发生在受湿润和干燥作用的区域，并且通过在不带有阳极的不透水的密封套管的区域附接到阴极保护来抑制 它与水中的阳极体配合。 套管起到阻止氧气通过混凝土渗透到钢中的作用，同时通过防止水分逸出而防止干燥，从而促使阳极通过套筒下方的混凝土传递电流。 可以仅在套筒的顶部设置阳极装置，以在该区域中消耗氧气。 套筒可以施加在一层浆料上。 砂浆的顶部边缘表面可以从套筒密封到柱上。

公开(公告)号：US20080000778A1

公开(公告)日：2008-01-03

申请号：US11854139

申请日：2007-09-12

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00 ,  C25B11/00

CPC classification number: C23F13/06 ,  C23F13/10 ,  C23F13/16 ,  C23F2201/02

Abstract: Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the rebar. The anode body is formed, by pressing together finely divided powder, flakes or fibers of a sacrificial anode material such as zinc to define a porous body having pores therein. The sacrificial anode material of the anode member is directly in contact with the covering material by being buried or inserted as a tight fit into a drilled hole so that any expansion forces therefrom would be applied to the concrete with the potential of causing cracking. The pores are arranged however such that corrosion products from corrosion of the anode body are received into the pores sufficiently to prevent expansion of the anode body to an extent which would cause cracking of the covering material.

Abstract translation: 包括至少部分地埋在覆盖层中的钢构件的结构的阴极保护，例如混凝土结构中的钢筋，通过将牺牲阳极嵌入混凝土层中并且将阳极连接到钢筋上而提供 。 阳极体通过将细分散的粉末，诸如锌等牺牲阳极材料的薄片或纤维压在一起形成，以限定其中具有孔的多孔体。 阳极部件的牺牲阳极材料通过被埋入或插入钻孔中而直接与覆盖材料接触，从而将其中的任何膨胀力施加到具有引起裂纹的可能性的混凝土中。 然而，孔被布置成使得阳极体的腐蚀产生的腐蚀产物被充分地容纳到孔中，以防止阳极体膨胀到使覆盖材料破裂的程度。

公开(公告)号：US20060108235A1

公开(公告)日：2006-05-25

申请号：US10996810

申请日：2004-11-26

Applicant: David Whitmore ,  John Ball

Inventor： David Whitmore ,  John Ball

IPC: C23F13/00

CPC classification number: C23F13/22 ,  C23F13/06 ,  C23F2201/02 ,  C23F2213/21 ,  Y10S241/605

Abstract: Cathodic protection of steel in a building or other concrete or similar structure is provided by locating an anode in a suitable location adjacent to the steel and providing an impressed current from a power supply to the anode. The anode is formed from a material which is more electro-negative than the steel so that in the event that the power supply falls below the galvanic potential therebetween, current flows under galvanic action to replace the impressed current. A diode in the circuit prevents flow of current across the power supply but allows the galvanic current when the power supply fails open circuit. An additional diode can be provided in the event the power supply fails closed circuit to prevent reverse current flow.

Abstract translation: 在建筑物或其他混凝土或类似结构中对钢的阴极保护是通过将阳极定位在与钢相邻的合适位置并提供从电源到阳极的外加电流来提供的。 阳极由比钢更电气的材料形成，使得在电源低于其之间的电位的情况下，电流在电动作用下流动以取代外加电流。 电路中的二极管防止电源流过电源，但当电源故障开路时允许电流。 在电源发生故障闭合以防止反向电流流动的情况下，可以提供额外的二极管。

公开(公告)号：US6165346A

公开(公告)日：2000-12-26

申请号：US245373

申请日：1999-02-05

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00 ,  C23F13/16 ,  C23F13/08

CPC classification number: C23F13/16 ,  C23F2201/02

Abstract: An existing concrete structure is restored by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the reinforcing members to provide a cathodic protection against corrosion. Each anode is inserted into a drilled hole in the layer of sufficient depth to expose the reinforcement. A steel pin passes through a bore in the cylindrical anode and is attached to the reinforcement by arc welding or by impact so as to hold the anode rigidly within the hole. The hole is filled by a settable filler material. In order to maintain effective current conduction from the anode to the reinforcement through the filler over an extended period to maintain the required protection, there is added a material to hold the pH in a preferred range of the order of 12 to 14 and a deliquescent material to absorb moisture into the filler.

公开(公告)号：US09447506B2

公开(公告)日：2016-09-20

申请号：US13561714

申请日：2012-07-30

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00 ,  C23F13/06 ,  C23F13/18 ,  C23F13/10 ,  E02B17/00 ,  E01D22/00

CPC classification number: C23F13/06 ,  C23F13/10 ,  C23F13/18 ,  C23F2201/02 ,  C23F2213/22 ,  C23F2213/31 ,  E01D22/00 ,  E02B17/0026

Abstract: Corrosion of steel in a concrete structure such as a column in sea water occurs primarily above the water line and is inhibited using cathodic protection by attaching to the column an impervious sealed sleeve in which is provided a sacrificial anode in sheet form in contact with a layer of water transport medium so that water from the location of the bottom of the water transport medium within the water is carried into the area of the sacrificial anode to enhance ionic current.

Abstract translation: 在诸如海水中的柱的混凝土结构中的钢的腐蚀主要发生在水线之上，并且通过将不透水的密封套筒附接到柱上而被禁止使用阴极保护，其中提供了与层相接触的片状牺牲阳极 的水输送介质，使来自水中运输介质底部位置的水被运送到牺牲阳极的区域以增强离子电流。

公开(公告)号：USRE45234E1

公开(公告)日：2014-11-11

申请号：US12552900

申请日：2009-09-02

Applicant: David Whitmore ,  John Christopher Ball

Inventor： David Whitmore ,  John Christopher Ball

IPC: C23F13/20

CPC classification number: C23F13/22 ,  C23F13/06 ,  C23F2201/02 ,  C23F2213/21 ,  Y10S241/605

Abstract: Cathodic protection of steel in a building or other concrete or similar structure is provided by locating an anode in a suitable location adjacent to the steel and providing an impressed current from a power supply to the anode. The anode is formed from a material which is more electro-negative than the steel so that in the event that the power supply falls below the galvanic potential therebetween, current flows under galvanic action to replace the impressed current. A diode in the circuit prevents flow of current across the power supply but allows the galvanic current when the power supply fails open circuit. An additional diode can be provided in the event the power supply fails closed circuit to prevent reverse current flow.

Abstract translation: 在建筑物或其他混凝土或类似结构中对钢的阴极保护是通过将阳极定位在与钢相邻的合适位置并提供从电源到阳极的外加电流来提供的。 阳极由比钢更电气的材料形成，使得在电源低于其之间的电位的情况下，电流在电动作用下流动以取代外加电流。 电路中的二极管防止电源流过电源，但当电源故障开路时允许电流。 在电源发生故障闭合以防止反向电流流动的情况下，可以提供额外的二极管。

公开(公告)号：US20140021039A1

公开(公告)日：2014-01-23

申请号：US13553489

申请日：2012-07-19

Applicant: George Sergi ,  Attanayake Mudiyanselage Gamini Seneviratne ,  David Whitmore

Inventor： George Sergi ,  Attanayake Mudiyanselage Gamini Seneviratne ,  David Whitmore

IPC: C23F13/14

CPC classification number: C23F13/14

Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.

Abstract translation: 通过将包括牺牲阳极和外加电流阳极的阳极组件定位成与混凝土接触来提供混凝土中钢的阴极保护，并从电源向阳极提供外加电流。 外加电流阳极形成围绕牺牲阳极材料的棒的穿孔套管，其间具有活化的离子导电填料材料。 该系统可以在牺牲模式下没有电源的情况下使用，或者当电源连接时，外加电流阳极可以被供电以提供外加电流系统和/或从牺牲阳极腐蚀产物对牺牲阳极再充电。

公开(公告)号：US20110214984A1

公开(公告)日：2011-09-08

申请号：US13112360

申请日：2011-05-20

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/08

CPC classification number: C23F13/06 ,  C23F13/10 ,  C23F13/16 ,  C23F2201/02

Abstract: Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the rebar. The anode body is formed, by pressing together finely divided powder, flakes or fibers of a sacrificial anode material such as zinc to define a porous body having pores therein. The sacrificial anode material of the anode member is directly in contact with the covering material by being buried or inserted as a tight fit into a drilled hole so that any expansion forces therefrom would be applied to the concrete with the potential of causing cracking. The pores are arranged however such that corrosion products from corrosion of the anode body are received into the pores sufficiently to prevent expansion of the anode body to an extent which would cause cracking of the covering material.

Abstract translation: 包括至少部分地埋在覆盖层中的钢构件的结构的阴极保护，例如混凝土结构中的钢筋，通过将牺牲阳极嵌入混凝土层中并且将阳极连接到钢筋上而提供 。 阳极体通过将细分散的粉末，诸如锌等牺牲阳极材料的薄片或纤维压在一起形成，以限定其中具有孔的多孔体。 阳极部件的牺牲阳极材料通过被埋入或插入钻孔中而直接与覆盖材料接触，从而将其中的任何膨胀力施加到具有引起裂纹的可能性的混凝土中。 然而，孔被布置成使得阳极体的腐蚀产生的腐蚀产物被充分地容纳到孔中，以防止阳极体膨胀到使覆盖材料破裂的程度。

公开(公告)号：US20080202941A1

公开(公告)日：2008-08-28

申请号：US11678932

申请日：2007-02-26

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00

CPC classification number: C23F13/06 ,  C23F13/02 ,  C23F2201/02 ,  C23F2213/31

Abstract: Corrosion of steel in a concrete structure such as a column in sea water occurs primarily at the zone which is subject to a wetting and drying action and is inhibited using cathodic protection by attaching to the column at the zone an impervious sealed sleeve which carries no anode itself but which cooperates with an anode body in the water below the sleeve. The sleeve acts to inhibit permeation of oxygen through the concrete to the steel and at the same time acts to promote transfer of current from the anode through the concrete under the sleeve by preventing drying by preventing moisture escape. An anode arrangement may be provided only at the top of the sleeve to consume oxygen in that area. The sleeve may be applied over a layer of grout. The top edge surface of the grout may be sealed from the sleeve to the column.

Abstract translation: 在海水中的混凝土结构中的钢的腐蚀主要发生在受湿润和干燥作用的区域，并且通过在不带有阳极的不透水的密封套管的区域附接到阴极保护来抑制 但是它们与套筒下方的水中的阳极体配合。 套管起到阻止氧气通过混凝土渗透到钢中的作用，同时通过防止水分逸出而防止干燥，从而促使阳极通过套筒下方的混凝土传递电流。 可以仅在套筒的顶部设置阳极装置，以在该区域中消耗氧气。 套筒可以施加在一层浆料上。 砂浆的顶部边缘表面可以从套筒密封到柱上。

公开(公告)号：US20070295612A1

公开(公告)日：2007-12-27

申请号：US11854114

申请日：2007-09-12

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00 ,  C25B11/00

CPC classification number: C23F13/06 ,  C23F13/10 ,  C23F13/16 ,  C23F2201/02

Abstract: Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the rebar. The anode body is formed, by pressing together finely divided powder, flakes or fibers of a sacrificial anode material such as zinc to define a porous body having pores therein. The sacrificial anode material of the anode member is directly in contact with the covering material by being buried or inserted as a tight fit into a drilled hole so that any expansion forces therefrom would be applied to the concrete with the potential of causing cracking. The pores are arranged however such that corrosion products from corrosion of the anode body are received into the pores sufficiently to prevent expansion of the anode body to an extent which would cause cracking of the covering material.

Abstract translation: 包括至少部分地埋在覆盖层中的钢构件的结构的阴极保护，例如混凝土结构中的钢筋，通过将牺牲阳极嵌入混凝土层中并且将阳极连接到钢筋上而提供 。 阳极体通过将细分散的粉末，诸如锌等牺牲阳极材料的薄片或纤维压在一起形成，以限定其中具有孔的多孔体。 阳极部件的牺牲阳极材料通过被埋入或插入钻孔中而直接与覆盖材料接触，从而将其中的任何膨胀力施加到具有引起裂纹的可能性的混凝土中。 然而，孔被布置成使得阳极体的腐蚀产生的腐蚀产物被充分地容纳到孔中，以防止阳极体膨胀到使覆盖材料破裂的程度。