WO2003039947A1 - Systeme et procede permettant de nettoyer un objet flottant a proximite de la surface de l'eau - Google Patents
Systeme et procede permettant de nettoyer un objet flottant a proximite de la surface de l'eau Download PDFInfo
- Publication number
- WO2003039947A1 WO2003039947A1 PCT/JP2001/009825 JP0109825W WO03039947A1 WO 2003039947 A1 WO2003039947 A1 WO 2003039947A1 JP 0109825 W JP0109825 W JP 0109825W WO 03039947 A1 WO03039947 A1 WO 03039947A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waterproof sheet
- cleaning
- cleaned
- pool
- waterproof
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/06—Cleaning devices for hulls
- B63B59/08—Cleaning devices for hulls of underwater surfaces while afloat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/04—Preventing hull fouling
- B63B59/045—Preventing hull fouling by wrapping the submerged hull or part of the hull with an impermeable sheet
Definitions
- the present invention relates to a cleaning apparatus and a cleaning method capable of easily and efficiently cleaning an object to be cleaned floating near the water surface, for example, a ship floating on the sea, without landing on the ground. . Background art
- JP-A-4-833888 describes a method of applying a direct current to an electrode body to electrolyze seawater and generate active ions to prevent marine organisms from adhering.
- Japanese Patent Application Laid-Open No. 60-240775 discloses that an antifouling paint obtained by blending a swollen polymer with a film or a synthetic resin is used as a ship bottom coating material. .
- a main object of the present invention is to provide a cleaning apparatus capable of easily and efficiently cleaning an object to be cleaned floating near the water surface, for example, a ship floating on the sea without landing on the ground. It is in.
- the cleaning device of the present invention has an area capable of covering the area to be cleaned of an object to be cleaned floating near the water surface, and a waterproof sheet having a floating bag on the periphery thereof; Air supply means to supply air to the floating bag of the waterproof sheet placed at the bottom to make it float, and to form a pool that can store objects to be washed with a waterproof sheet; stored in a pool made of a waterproof sheet And a spacer that provides a space for filling the cleaning agent between the washed object and the waterproof sheet.
- the cleaning device having the above-described configuration, for example, when a hull that floats on the sea is to be cleaned, it is not necessary to lift the hull up to a dog to perform the cleaning, thereby significantly reducing the work cost and time required for cleaning.
- the space between the waterproof sheet and the object to be cleaned is stably maintained by the spacer, so that an optimum amount of the cleaning agent can always be brought into contact with the object to be cleaned and the amount of the cleaning agent used Can be saved.
- the floating bag and the Z or spacer are preferably formed integrally with the waterproof sheet by sewing a waterproof cloth constituting the waterproof sheet.
- the work of attaching the floating bag and the spacer can be omitted, and the work of arranging the waterproof sheet below the object to be cleaned becomes easy, so that the cleaning work can be performed more efficiently.
- Another advantage is that the waterproof sheet can be easily carried and stored.
- the above-mentioned spacer is a frame structure having a shape which is spaced apart from the object to be cleaned by a predetermined distance and surrounds the periphery of the object to be cleaned. In this case, it is effective to secure a uniform distance between the waterproof sheet and the object to be cleaned by the frame structure to achieve a uniform cleaning effect.
- the waterproof sheet has a cut portion at a position corresponding to at least one of a front end portion and a rear end portion of an object to be washed, and joining means having a waterproof function are provided at both end edges of the cut portion.
- the pool is formed around the object to be cleaned by connecting both ends of the notch with the joining means.
- the waterproof sheet has a sufficient area to cover the area from the lower part of the hull to the upper part of the waterline, and at a location corresponding to at least one of the bow and stern of the hull.
- a drainage means for discharging water around the object to be cleaned in the pool to the outside of the pool. This configuration is effective when the water (seawater) unavoidably captured in the pool is once discharged, and then a cleaning operation is performed in which the cleaning agent whose composition is adjusted is filled into the bull.
- the P-way water sheet has a supply valve for supplying the cleaning agent into the pool and a drain valve for discharging the cleaning agent from the pool, and the cleaning device is connected to the supply pulp through the supply pulp. It is preferable to have a cleaning agent supply means for supplying the cleaning agent, and a circulation means for returning the cleaning agent discharged from the drainage vanoleb to the cleaning agent supply means.
- a fresh cleaning agent can always be brought into contact with the surface of the object to be processed, and the flow state of the cleaning agent provides a higher cleaning power than when the cleaning agent is allowed to stand still. The washing operation can be performed efficiently.
- a stirring means for promoting the flow state of the detergent may be provided in the pool made of a waterproof sheet.
- the waterproof sheet is provided between the first waterproof sheet for the front end of the object to be cleaned, the second waterproof sheet for the rear end, and the first waterproof sheet and the second waterproof sheet by a joining means having waterproofing ability. It is preferable that it is composed of at least one third waterproof sheet to be connected.
- the waterproof sheet is first waterproofed by a first waterproof sheet for the bow, a second waterproof sheet for the stern, and a first waterproofing means such as a waterproof zipper. It consists of at least one third tarpaulin connected between the seat and the second tarpaulin. In this case, the total length of the tarpaulin depends on the length of the hull to be cleaned Can be varied, so that it is possible to flexibly cope with various hull shapes. .
- the cleaning method of the present invention provides a waterproof sheet having an area capable of covering an area to be cleaned of a cleaning object floating near the water surface, and a waterproof sheet having a floating bag on the periphery thereof. Step of supplying air to the floating bag of the waterproof sheet to lift the waterproof sheet, and forming a pool capable of storing the object to be washed with the waterproof sheet; accommodation in the pool made of the waterproof sheet Filling the space between the cleaned object to be cleaned and the waterproof sheet with a cleaning agent. It is particularly preferred to include a step of forcibly circulating the cleaning agent filled in the bull to further improve the cleaning efficiency.
- FIG. 1A is a top view of a waterproof sheet with a floating bag of the cleaning device according to the first embodiment of the present invention
- FIG. 1B is a cross-sectional view taken along line M-M of FIG. 1A
- 2A to 2C are a side view, a front view, and a rear view showing a cleaning object (boat) arranged in the cleaning apparatus of the present invention.
- FIG. 3 is a top view showing a modified example of the waterproof sheet with a floating bag of the cleaning device of the present invention.
- FIG. 4 shows a frame structure which is a modified example of the cleaning device of the present invention.
- 5A and 5B are a top view and a side view showing a state where the frame structure is mounted on an object to be cleaned (boat).
- FIG. 6 is a perspective view showing a washing waterproof bag for washing a specific area of an object to be washed.
- FIG. 7 is a diagram showing an example of a usage form of the waterproof bag for cleaning.
- the cleaning device of this embodiment includes a waterproof sheet 1 having an area capable of covering an area to be washed of the hull, that is, from the bottom of the hull to above the waterline, and a watertight sheet.
- a floating bag 10 provided on the periphery, an air pump 20 as an air supply means for supplying air to the floating bag, and spacers (30, 32) formed at predetermined positions of the waterproof sheet 1 are mainly used. Be composed.
- the material of the waterproof sheet 1 is not particularly limited, but it is preferable to select a material that has excellent waterproof performance to prevent intrusion of seawater, and that is durable also to an acid wash J described later.
- a commercially available waterproof cloth manufactured by Teijin Limited
- Teijin Limited having excellent water resistance, chemical resistance against detergents, and abrasion resistance so as not to be cut by a sharp shell of shellfish can be used.
- the floating bag 10 is formed integrally with the waterproof sheet by sewing a waterproof cloth constituting the waterproof sheet.
- the floating bag 10 is composed of a pair of a first floating bag 11 and a second floating bag 12 formed on the periphery of the waterproof sheet, and the first floating bag and the second floating bag are connected by an air supply pipe 13.
- the first bladder 11 and the second bladder 12 float on the waterline of the hull when washing the hull.
- the inflow of seawater into the pool made of the waterproof sheet 1 can be effectively prevented.
- the air supply pipe is configured to send This makes it easier to prepare for cleaning than when air is supplied to the floating bag at multiple locations.
- the first floating bag 11 is formed to serve as a pipe for supplying air from the first floating bag 11 to the second floating bag 12, and as shown in FIG.1B, the first floating bag 11 and the second floating bag 12 Since the height is designed to be smaller than that, it is possible to avoid a situation in which the air supply pipe 13 comes into contact with the hull and hinders the flow of the washing solution during the washing operation.
- the shape, number, and size of the bladders are appropriately determined according to the size of the hull to be cleaned. Further, a configuration in which a floating bag is detachably attached to the waterproof sheet may be adopted.
- the waterproof sheet 1 has V-shaped notches 40 and 45 at locations corresponding to the bow and stern of the hull to be washed, and both edges of the notches are provided. (41, 42, 46, 47) is provided with a waterproof zipper 60, and by connecting both edges (41, 42, 46, 47) of the cut portions with the waterproof zipper 60, FIG. As shown in (1), a pool made of the waterproof sheet 1 can be formed, and by holding the hull 100 in this pool, the object to be washed can be isolated from seawater outside the waterproof sheet.
- the waterproof sheet 1 has a supply valve 51 which can be connected to a supply pump 50 for supplying a cleaning agent into the pool made of the waterproof sheet, and a drainage pulp 52 for discharging the washing lj from the inside of the pool.
- the cleaning liquid discharged from the drainage pulp 52 is returned to the supply pump 50 via a circulation line 53 composed of a hose or the like. This allows the washing solution to flow in the pool. Can be.
- a stirrer may be provided to promote the flow state of the cleaning agent in the pool.
- the spacers (30, 32) are floating bags formed integrally with the waterproof sheet by sewing a waterproof cloth constituting the P-way water sheet 1. Since air is supplied to these floating bags (30, 32) through the air supply pipe 13, if air flows from the air pump 20 into the first floating bag 11 through the air inlet 21, the air supply pipe 13 The air spreads simultaneously not only to the second floating bag 12 but also to the floating bag (30, 32) that functions as a spacer, so that the entire floating bag (11, 12, 30, 32) provided on the waterproof sheet Can send air. If necessary, a spacer made of a lightweight and buoyant cushioning material such as polystyrene foam may be removably mounted at a predetermined position on the waterproof sheet.
- a spacer made of a lightweight and buoyant cushioning material such as polystyrene foam
- the height dimension of the spacer (30, 32) is not particularly limited, but from the viewpoint of filling a sufficient amount of detergent between the waterproof sheet and the object to be cleaned, the height is set to 100 to 200. It is preferably 0 mm, more preferably 100 to 150 mm.
- the spacer 30 provides a predetermined space between the waterproof sheet 1 on the side of the hull, and the spacer 32 provides the waterproof sheet 1 on the bottom of the ship. To provide a predetermined space.
- By filling the space secured between the hull 100 and the tarpaulin 1 with such a spacer arrangement it is possible to prevent the use of an excessive amount of the cleaning solution and to optimize the amount of the cleaning solution. Can always contact the hull. Also, it does not obstruct the flow of the cleaning solution in the longitudinal direction of the hull.
- the shape, number, dimensions, etc. of the spacers are determined as appropriate according to the size of the hull to be cleaned.
- a method for cleaning the hull 100 floating on the sea by using the cleaning apparatus having the above configuration will be described below.
- air is supplied to the floating bag 10 by the air pump 20 to lift the waterproof sheet from underwater.
- the cut-off portions 41, 42, 46, 47
- the pool made of a waterproof sheet The hull 100 is housed inside.
- the pool of the waterproof sheet 1 formed in this way the hull 100 to be washed is isolated from seawater outside the anti-icing sheet.
- seawater taken into this pool can be used as a diluent for the detergent to be added.
- seawater may be temporarily removed from the pool, and the cleaning solution having the adjusted composition may be filled into the pool.
- the seawater taken into the pool is discharged by a drainage pump (not shown), and then filled with a cleaning solution having a predetermined composition.
- the cleaning agent is not particularly limited, it is preferable to use a cleaning agent that does not cause corrosion of the hull or hydrogen embrittlement of the hull by ⁇ I and has a high ability to remove marine organisms from a steel hull.
- a cleaning agent that does not cause corrosion of the hull or hydrogen embrittlement of the hull by ⁇ I and has a high ability to remove marine organisms from a steel hull.
- Such detergents for example, Famin acid 7 0-9 0 weight 0, Kuen acid 5 to 5 weight 0/0, the use of cleaning agents having a composition consisting of 5 to 1 5% by weight malic acid recommended Is done. This washing is usually used as an aqueous solution after dilution with water or seawater.
- the cleaning solution is supplied into the pool from the supply valve 51 provided on the bow side of the waterproof sheet 1.
- the washing solution is discharged from the drain valve 52 provided below the stern while the supply of the washing solution from the supply valve 51 is maintained.
- the discharged cleaning solution is returned to the supply pump SO via the circulation line 53 after the impurities are removed by the strainer, and is again supplied to the pool via the supply pulp 51 therefrom.
- the washing solution may be injected from the lower part of the pool on the bow side and drained from the pulp provided around the waterline at the upper part on the stern side.
- the flow of the cleaning solution from the bow toward the stern is described.
- the flow of the cleaning solution from the stern toward the bow may be formed.
- a stirring means is provided at at least one location in the pool to ensure a uniform flow of the washing solution throughout the pool ⁇ . It may be formed.
- an additional pump may be provided to promote the flow state of the cleaning solution.
- a first waterproof sheet 1a for a bow As a modified example of the waterproof sheet 1 of the present invention, as shown in FIG. 3, a first waterproof sheet 1a for a bow, a second waterproof sheet 1b for a stern, and a connecting means 62 having waterproof performance such as a waterproof zipper.
- a waterproof sheet composed of at least one third waterproof sheet 1c connected between the first waterproof sheet and the second waterproof sheet can be used.
- number 15 is used to connect the bladders 10 when connecting between the first tarpaulin 1a and the third tarpaulin 1c and between the second tarpaulin 1b and the third tarpaulin. Connector.
- Other configurations are substantially the same as the waterproof sheet 1 of FIG.
- a frame structure 35 as shown in FIG. 4 may be used.
- the frame structure 35 surrounds the area from the lower part of the hull to be cleaned to the vicinity of the waterline L by a rod material made of chloride chloride having a diameter of about 100 to L5 Omm and a pipe material 36. It is assembled in a size that can be used.
- the material for forming the frame structure 35 is not particularly limited as long as it is lightweight and easy to connect. It is also preferable to capture the frame structure 35 using an auxiliary pipe material (not shown) having a diameter of about 4 Omm.
- FIGS. 5A and 5B show a state in which the frame structure 35 is fixed to the boat 100 to be cleaned.
- the frame structure 35 is fixed to the hull by a predetermined attachment tool (not shown).
- the frame structure 35 is moved from the outer surface of the hull 100 to 100 c n! It is preferable to determine the dimensions of the frame structure so that they are separated by about 15 cm. This allows the frame structure to exhibit the same function as the spacers (30, 32) described above.
- the waterproof sheet 1 is arranged at the lower part of the frame structure 35, and the air pump 20 supplies air to the floating bag 10 to supply the waterproof sheet 1 Surface. At this time, the waterproof sheet 1 should be along the outer periphery of the frame structure 35.
- the floating bag (11, 12) rises above the waterline L of the hull 100, the waterproof sheet 1 is fixed to the hull 100 and the frame structure 35.
- a pool for accommodating the hull 100 and the frame structure 35 therein is formed.
- the hull housed inside the tarpaulin is isolated from seawater outside.
- the marine life attached to the hull can be removed by the same washing method as described above.
- a washing waterproof bag 70 formed of a waterproof cloth as shown in FIG.
- the flange portion 71 of the waterproof bag 70 is formed of a flexible rubber or plastic material in which a magnet is embedded.
- the waterproof bag 70 is provided so that the rudder R and the screw S are housed therein. After placing 70, the flange 71 is attached to the bottom of the ship by magnet adsorption and fixed. As a result, the inside of the waterproof bag can be shielded from external seawater.
- a water supply / drain valve 72 is provided at the bottom of the waterproof bag to be used for injecting a cleaning solution into the bag or discharging the cleaning agent injected into the waterproof bag to the outside again. Thereby, the cleaning solution in the waterproof bag can be circulated to obtain higher cleaning performance.
- the boat was housed in a pool made of the waterproof sheet 1 formed by the above method.
- the cleaning solution supply pump 50 a pump having a pump capacity of 195 liters Z was used, and this was fixed to the lower part of the engine blanket of the hull. Formed.
- a detergent having a composition of su / refamic acid, citric acid and malic acid and having a pH value of 1.0 was used.
- the volume inside the tarpaulin was estimated to be 2 t taking into account the sagging of the tarpaulin, and 54 kg of detergent was injected.
- the concentration of the detergent is approximately 2.7%. Seawater was used for dilution of the detergent.
- the body was left for 3 hours in a waterproof sheet pull, and most of the marine organisms attached to the hull could be removed.
- the washing effect on the portion where the flow of the detergent provided in the pool via the supply pulp 51 directly collides was high.
- the paint on the bottom of the ship was not peeled off, and no inflow of seawater from outside the waterproof sheet was observed.
- the pH value was always maintained between 1 and 2, and no deterioration of the washing solution was observed.
- the cleaning device of the present invention it is possible to improve the efficiency without peeling off the bottom paint. Successfully removed marine life that often adhered to the bottom of the ship.
- the cleaning solution was prepared by diluting a cleaning agent having a composition of 90% by weight sulfamic acid, 5% by weight of citric acid 0 / o, and 5% by weight of malic acid with water so as to have a concentration of 5% by weight. It was used.
- a cleaning agent having a composition of 90% by weight sulfamic acid, 5% by weight of citric acid 0 / o, and 5% by weight of malic acid with water so as to have a concentration of 5% by weight. It was used.
- FIG. 7 after the waterproof bag 70 was placed around the rudder R and the screw S, the washing was selectively performed for 3 hours while repeatedly supplying and discharging the washing solution. As a result of this washing operation, marine organisms that had firmly attached to the rudder R and the screed S could be completely removed. After this cleaning work, no damage or corrosion to the painted surface of the rudder surface or the metal surface of the screw was observed.
- washing operation can be performed much cheaper and efficiently.
- the optimal cleaning agent is used and a means for circulating the cleaning agent is provided, it is possible to listen to the cleaning object for a certain period of time without performing difficult work to physically remove marine organisms. It is possible to remove most of the attached marine creatures simply by leaving the apparatus in the cleaning apparatus of the present invention.
- the washing operation can be performed easily, inexpensively, and in a short time, so that the washing operation can be performed periodically without lowering the operating rate of the hull.
- the cleaning apparatus and the cleaning method of the present invention are particularly effective in removing deposits on the hull floating on the sea.
- there are other structures such as floating piers, seawater (secondary cooling water) intake pipes and drainage pipes, or fishnets attached to fish nets, etc. It can be applied to the removal / washing of living organisms, and also when washing objects to be washed, such as leisure ports or pleasure boats, which are floating on lakes or ponds other than the sea and on which dirt such as algae has adhered. Can be used effectively.
- the present invention can perform a cleaning operation that previously required a lot of cost, time and labor on the spot without landing, and uses less cleaning agent. It has high industrial value because it can be easily and efficiently performed.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003542009A JP3974579B2 (ja) | 2001-11-09 | 2001-11-09 | 水面付近に浮かぶ船体の洗浄装置および洗浄方法 |
US10/494,939 US7013821B2 (en) | 2001-11-09 | 2001-11-09 | Apparatus and method for cleaning object floating at the surface of water |
CA002466472A CA2466472A1 (en) | 2001-11-09 | 2001-11-09 | Apparatus and method for cleaning object floating at the surface of water |
PCT/JP2001/009825 WO2003039947A1 (fr) | 2001-11-09 | 2001-11-09 | Systeme et procede permettant de nettoyer un objet flottant a proximite de la surface de l'eau |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/009825 WO2003039947A1 (fr) | 2001-11-09 | 2001-11-09 | Systeme et procede permettant de nettoyer un objet flottant a proximite de la surface de l'eau |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003039947A1 true WO2003039947A1 (fr) | 2003-05-15 |
Family
ID=11737928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/009825 WO2003039947A1 (fr) | 2001-11-09 | 2001-11-09 | Systeme et procede permettant de nettoyer un objet flottant a proximite de la surface de l'eau |
Country Status (4)
Country | Link |
---|---|
US (1) | US7013821B2 (ja) |
JP (1) | JP3974579B2 (ja) |
CA (1) | CA2466472A1 (ja) |
WO (1) | WO2003039947A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012011898A (ja) * | 2010-06-30 | 2012-01-19 | Hamamura Tekko Kk | 船底ジャケット構造 |
JP2021505477A (ja) * | 2017-12-06 | 2021-02-18 | ジルコン チャンバース ピーティーワイ リミテッド | 船舶および海洋物体の汚損および/または腐食を防止するためのシステムおよび方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US7455023B2 (en) * | 2004-10-22 | 2008-11-25 | Gerstenberger Peter J | Vessel hull protection device |
WO2007050717A2 (en) * | 2005-10-27 | 2007-05-03 | James Marine, Inc. | Barge transportation system and refurbishing system and method of transporting and refurbishing barges |
US20080229995A1 (en) * | 2007-03-21 | 2008-09-25 | Gunderboom, Inc. | Boom system for encircling vessel |
WO2011068416A1 (en) * | 2009-12-04 | 2011-06-09 | Redox As | Method and device for cleaning and disinfecting the outside of a hull |
SE2030303A1 (sv) * | 2020-10-02 | 2022-03-08 | Ekeroeds Utvecklings Ab | Skrovskyddsanordning |
EP3978353A1 (en) * | 2020-10-02 | 2022-04-06 | Ekeröds Utvecklings AB | Hull protection device |
US11319038B1 (en) * | 2020-12-31 | 2022-05-03 | Clean Wake, Llc | Systems and methods for decontaminating watercraft |
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US6327991B1 (en) * | 2000-04-07 | 2001-12-11 | John E. Eichert | Boat maintenance |
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2001
- 2001-11-09 CA CA002466472A patent/CA2466472A1/en not_active Abandoned
- 2001-11-09 US US10/494,939 patent/US7013821B2/en not_active Expired - Fee Related
- 2001-11-09 JP JP2003542009A patent/JP3974579B2/ja not_active Expired - Fee Related
- 2001-11-09 WO PCT/JP2001/009825 patent/WO2003039947A1/ja active Application Filing
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JPH07109499A (ja) * | 1993-10-08 | 1995-04-25 | Osaka Seiyaku:Kk | 発泡性洗浄剤 |
JPH11217097A (ja) * | 1998-02-02 | 1999-08-10 | Jiro Sakurai | 船底、船内エンジン洗浄装置及び洗浄方法 |
JP2000063890A (ja) * | 1998-08-25 | 2000-02-29 | Takeshi Sugimoto | 義歯および歯科用吐唾ボール等の排水管用洗浄剤 |
JP3069506U (ja) * | 1999-12-08 | 2000-06-23 | 明成工業株式会社 | ボ―ト底カバ― |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012011898A (ja) * | 2010-06-30 | 2012-01-19 | Hamamura Tekko Kk | 船底ジャケット構造 |
JP2021505477A (ja) * | 2017-12-06 | 2021-02-18 | ジルコン チャンバース ピーティーワイ リミテッド | 船舶および海洋物体の汚損および/または腐食を防止するためのシステムおよび方法 |
Also Published As
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JP3974579B2 (ja) | 2007-09-12 |
JPWO2003039947A1 (ja) | 2005-02-24 |
US20050039659A1 (en) | 2005-02-24 |
US7013821B2 (en) | 2006-03-21 |
CA2466472A1 (en) | 2003-05-15 |
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