EP2310258A1 - System to protect objects from growth on surfaces submerged into water - Google Patents

System to protect objects from growth on surfaces submerged into water

Info

Publication number
EP2310258A1
EP2310258A1 EP09732276A EP09732276A EP2310258A1 EP 2310258 A1 EP2310258 A1 EP 2310258A1 EP 09732276 A EP09732276 A EP 09732276A EP 09732276 A EP09732276 A EP 09732276A EP 2310258 A1 EP2310258 A1 EP 2310258A1
Authority
EP
European Patent Office
Prior art keywords
cover
water
covering
watei
covei
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09732276A
Other languages
German (de)
French (fr)
Other versions
EP2310258B1 (en
EP2310258A4 (en
Inventor
Bror-Erik Eriksson
Jan Jeppsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cleanboatprotector Sweden AB
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41199321&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2310258(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP2310258A1 publication Critical patent/EP2310258A1/en
Publication of EP2310258A4 publication Critical patent/EP2310258A4/en
Application granted granted Critical
Publication of EP2310258B1 publication Critical patent/EP2310258B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B63B59/04—Preventing hull fouling
    • B63B59/045—Preventing hull fouling by wrapping the submerged hull or part of the hull with an impermeable sheet

Definitions

  • the invention describes a system to protect objects, such as boats and tools, from growth of water organisms or deposits on surfaces submerged in water.
  • the next step in the development is the forming ot a cyprid lar ⁇ which search foi a suitable surface tor settling Signals from the environment can affect the choice of attaching oi not attaching on the surface Such factors are tor example vvatei flow close the settling surface light conditions, and the structure of the settling 5 surface When the larva finds a suitable surface it will produce protein glue that cures in watei The glue is ver ⁇ strong and it is ver> difficult to scrub of the surface The final step is that the larva then evolves into a full) developed sea acorn Sea acorns can normal l ⁇ grow down to 6 in of water depth, deeper down the light conditions are not acceptable
  • the description of the invention is intended to protect the bottom of boats oi othei objects submerged in vvatei from growth ot algae oi sea acorns
  • the boat oi the obiect should be driven or moved up upon a covei which has a lowei densit ⁇ 5 than water and that is attached to the bridge
  • the lowei densit ⁇ than vvatei can be achieved selecting propei material or b> attaching an pockets in the covet
  • the material suited for the covei is tor example polyethylene, polypropylene that both can be armed with polyestei fibres
  • a preferred solution is to utilize a PVC covei with a thickness of 0 2 to 0 8 mm armed with polyester fibre tor example 0 SCANPLAN 5 140PF (Scantarp.
  • Anothei feature of the cover is lo significantl ⁇ reduce the amount of light that is transmitted through the covet into the watei This can be achieved b ⁇ adding additives to PVC
  • a preferred coloui is NCS F4050-R90B which is relative! ⁇ dark blue that is suitable tor the environment and results in a pleasant blue coloui This is important since the covei is attached to a bridge Other colours
  • I O can also be used Since the cover has a lower densit ⁇ than water it is floating, and when the boat is driven on to it the cover will close! ⁇ attach to the surface of the boat This will reduce the amount of surface water around the boat and reduce the possibiht ⁇ tor the cyprid larva to settle at the surface Furthermore the light will be significant! ⁇ reduced which decrease the possibilities toi algae and sea
  • the covei can have a slit in order to allow a 5 deep keel that will not be enclosed the cover in difference to the rest of the submerged boat

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention consists of a method to prevent objects submerged into water from growth of algae and sea acorns. The principle is to diminish surface water flow and to substantially decrease light transmission, so the environment becomes harsh for water organisms and this will reduce settling of organisms on the surface of the object. This is accomplished by utilizing a cover with a density lower than water or to utilize a cover, preferably made of PVC. armed with polyester fibres and joined with a foam layer of PVC containing either closed micro spheres or closed air pockets or air cushions. The cover has a very low degree of transmission for light and the cover connects closely to the surface of the object. The cover will attach closely to the surface cause of its lower density than water.

Description

System to protect objects from growth on surfaces submerged into water
The invention describes a system to protect objects, such as boats and tools, from growth of water organisms or deposits on surfaces submerged in water.
5
Background
It is known from literature that ships and tools which are submerged in water will have growth of organisms on their surfaces and this causes great problems. Sea acorns, algae and mussels reduce speed and possibility to manoeuvre the ship
I O and they also increase the consumption of fuel (Ref. 1 and 2). Also functions of tools can be drastically altered by growth of sea acorns, algae and mussels or other water organisms. In order to avoid these problems various solutions have been presented. A system consisting of a belt which rubs off algae and other deposits from the surface of a boat is presented in the patent US 4.395.966. The
15 purpose is to purely mechanically rub away the deposits. Another system is presented in the US patent 6.443.085 utilizes a cover with holes of a predetermined size which is said to protect from growth of organisms on subjects submerged in water such as a boat. The size of the holes is completely vital for the function, according to the patent. 0
By using a cover with a lower density than water or which has air cushions are described in SE 527601 . This invention utilizes the movements between the boat and the cover and the cover must have friction enough to remove deposits. Another application WO 01 /81 167 A 1 describes a cover for inhibiting the 5 fouling for a vessel. The principle of this system is a cover resting in a vertical position. In order to achieve this, the covers have a density higher than water in the lower parts. To attach the cover to the boat it is necessary to use ropes and/or special tools to keep it in place. 0
This invention
A background to the invention described below is the references 3. 4 and 5. In the reference 3 "Settlingsval hos havstulpaner" the first step in the settling cycle of the sea acorn is described. The first step is the formation of the nauplius larv. The next step in the development is the forming ot a cyprid lar\ which search foi a suitable surface tor settling Signals from the environment can affect the choice of attaching oi not attaching on the surface Such factors are tor example vvatei flow close the settling surface light conditions, and the structure of the settling 5 surface When the larva finds a suitable surface it will produce protein glue that cures in watei The glue is ver\ strong and it is ver> difficult to scrub of the surface The final step is that the larva then evolves into a full) developed sea acorn Sea acorns can normal l\ grow down to 6 in of water depth, deeper down the light conditions are not acceptable
I O
Even other water organisms like algae need light to develop and reproduce Todav different kinds ot yacht paints tor painting the outer bottom of the boat are used to protect the surface from growth of vvatei organisms However these vacht paints release large portions ot poison substances which have verv serious
15 consequences on the water environment
The invention described below is intended to effective!) hinder the growth ot watei organisms on obiects submerged in water without anv material containing poison substances that can leak out in the watei 0
Description of the invention
The description of the invention is intended to protect the bottom of boats oi othei obiects submerged in vvatei from growth ot algae oi sea acorns The boat oi the obiect should be driven or moved up upon a covei which has a lowei densit} 5 than water and that is attached to the bridge The lowei densit} than vvatei can be achieved selecting propei material or b> attaching an pockets in the covet The material suited for the covei is tor example polyethylene, polypropylene that both can be armed with polyestei fibres A preferred solution is to utilize a PVC covei with a thickness of 0 2 to 0 8 mm armed with polyester fibre tor example 0 SCANPLAN 5 140PF (Scantarp. Kuopio. Finland) oi NAIZI l PS ADR PHTALATF. FREF (NAIZI I INC . C anada) Both these two mateπas are phthalate free This covei is combined foi example bv welding with foam ol PVC (ExpancelΦ) The foam contains microspheres, in which gas is encapsulated and this result in a lifting force to the covei The gas tilled spheres are complete!} closed and therefore the\ cannot be filled with vvatei The PVC foam has a thickness of about 4 mm ( interval 2 to 8 mm ) An example of such material is polyethylene foam A lveolit TA4000 ( DAFA A/S. Denmark )
5 Anothei feature of the cover is lo significantl} reduce the amount of light that is transmitted through the covet into the watei This can be achieved b\ adding additives to PVC A preferred coloui is NCS F4050-R90B which is relative!} dark blue that is suitable tor the environment and results in a pleasant blue coloui This is important since the covei is attached to a bridge Other colours
I O can also be used Since the cover has a lower densit} than water it is floating, and when the boat is driven on to it the cover will close!} attach to the surface of the boat This will reduce the amount of surface water around the boat and reduce the possibiht} tor the cyprid larva to settle at the surface Furthermore the light will be significant!} reduced which decrease the possibilities toi algae and sea
15 acorns, to develop and to reproduce In this example the cover is supposed to be attached to the bridge but it could of course also be attached to the boat preset attachment points Furthermoie it has been proposed that the boat is moved oi driven to the covei . but of course it is also possible tor the cover to be drawn under the boat or the tool and then be attached ropes on either the bridge oi 0 the obiecl
Since the cover has a lowei densit} oi the covei contains air cushions, the obiect will push down the covei and the covei will attach close!} to the surface of the obiect In another preferred example the covei can have a slit in order to allow a 5 deep keel that will not be enclosed the cover in difference to the rest of the submerged boat
The choice of material tor the covei is made in such a vva_\ that it does not release an} poisons substances into the uatei see examples above Il is also possible to 0 use various types ot natural textiles such as cotton linen, hemp, cellulose fibres or different types ot synthetic substances In another preferred design the outer borders of the cover could contain perforated channels so that an could be pumped through these holes in wintertime to keep the sides of the boat or tool ice free
5
References:
1 Samhallets inverkan pa Osters|on. I Bohm. Lulea tekniska universitet. I O lnstitutet tor Tillampad kemi och geovetenskap. 2006
2 Mann pava\t - ett svarlόst problem. L Martensson. Zoofysiologi Goteborgs universitet. 2005
1 5 3 Settlingsval hos havstulpanei Proiektarbete. I Winell. D Hammenstig.
Gullmarsgymnasiet. 2005-04-05
4 Cypridlarvers. Balanus iinpiovisus. beteende och settlingsintensitet i strόmmande vatten. C Lagerholm. Inst Foi Mann Ekologi. T|arno. Mann
20 Biologiska Laboratoπe. 2000
5 "Nu ar det dags att tvatta batens botten" Lansstyrelsen i Stockholm Havstulpanproiektet 2007- 1 1 -29
"> S

Claims

Claims
1 System to protect obiects from organisms that grov\ and reproduce 5 themselves on surfaces subiected into water based on a cover that has a densit} lovvei than watei oi is provided with encapsulated air cushions. characterized by the part of the ob|ect submerged into watei is covered a textile that is not permeable b\ light and which is made of armed polyester fibres PVC textile, ioined with a roam containing closed I O microspheres that are so designed that the covei physical l\ attach well to the object submerged in watei to hindei formation of bio film on the obiect which can be the base foi othei organisms like algae, mussels and watei acorns to settle on the surface of the ob|ecι
1 5 2 The system according to claim I characterized by the covering consists of a textile constituted as such that it prevents watei flov\ close to the surface of the ob|ect
3 The system according to claim I characterized by the covering consists 0 of polyethylene, polypropylene oi polyvinylchloride
4 The system according to claim I characterized by the covering consists of a textile attached with foam of polyvinylchloride or polyethylene 5 5 The system according to claim I to 4 characterized by the covering consists of a dark coloured textile to prevent transmission of light
6 The system according to claim I characterized by the covering is arranged in such a wa> that the obiect is driven oi moved on to the covei 0
7 The system according to claim I characterized by the covering is arranged in such a wa\ that the covei is attached to the obiect. submerged in watei 8 The system according to claim I characterized by the covering is. arranged in such a wa\ that the cover is attached to a stationary arrangement and that the obiect is driven or moved on to the covei
5 9 The system according to claim I characterized by the covering is designed with a split tor boats with deep keel
I O The system according to claim I to 7 characterized by that perforated air channels are enclosed on each side of the cover I O
EP09732276.2A 2008-04-17 2009-04-14 System to protect objects from growth on surfaces submerged into water Active EP2310258B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0800879A SE532546C2 (en) 2008-04-17 2008-04-17 Device for preventing the growth of objects in water
PCT/SE2009/000187 WO2009128761A1 (en) 2008-04-17 2009-04-14 System to protect objects from growth on surfaces submerged into water

Publications (3)

Publication Number Publication Date
EP2310258A1 true EP2310258A1 (en) 2011-04-20
EP2310258A4 EP2310258A4 (en) 2017-02-22
EP2310258B1 EP2310258B1 (en) 2017-08-09

Family

ID=41199321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09732276.2A Active EP2310258B1 (en) 2008-04-17 2009-04-14 System to protect objects from growth on surfaces submerged into water

Country Status (4)

Country Link
EP (1) EP2310258B1 (en)
NO (1) NO2310258T3 (en)
SE (1) SE532546C2 (en)
WO (1) WO2009128761A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20201210A1 (en) * 2020-11-06 2022-05-09 Marine Pro As An anti-fouling protective cover

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2030303A1 (en) * 2020-10-02 2022-03-08 Ekeroeds Utvecklings Ab HULL PROTECTION DEVICE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395966A (en) 1981-07-30 1983-08-02 Murphy Kent L Boat hull scrubber
JPS59128095A (en) * 1983-01-06 1984-07-24 Tadao Fujimoto Protector for ship's bottom
FR2610284B3 (en) * 1987-02-02 1991-10-04 Piana Georges DEVICE FOR PROTECTING THE HULLS OF PLEASURE VESSELS DURING THEIR WINTERIZING IN FLOAT
US5465676A (en) 1995-03-24 1995-11-14 Falcaro; Steven M. Barnacle shield
US6152061A (en) * 1999-07-20 2000-11-28 Perez-Collazo; Eduardo Floating collapsible hull protector against marine growth
JP2001128612A (en) 1999-11-05 2001-05-15 Kaoru Akahani Method for preventing adhesion of aquatic organism to underground structure
JP2001239989A (en) 2000-02-29 2001-09-04 Molten Corp Protector for hull
WO2001081167A1 (en) 2000-04-27 2001-11-01 Olsen Design Aps A moorage with a cover for inhibiting the fouling of a vessel
JP2003104285A (en) * 2001-09-28 2003-04-09 Yoshiaki Matsuno Ship bottom anti-fouling sheet structure for small ship
US20030219565A1 (en) 2001-12-07 2003-11-27 Gary Heartsfield Mat apparatus and method
SE527601C2 (en) 2002-10-14 2006-04-25 Bjoern Lindberg Anti fouling device for boat hull, comprises mat or cloth made from low density material or containing air cushions or pockets
US20060116039A1 (en) 2004-12-01 2006-06-01 Pole Robert Iii Floating water mat

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2009128761A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20201210A1 (en) * 2020-11-06 2022-05-09 Marine Pro As An anti-fouling protective cover
NO347293B1 (en) * 2020-11-06 2023-08-28 Marine Pro As An anti-fouling protective cover

Also Published As

Publication number Publication date
SE0800879L (en) 2009-10-18
NO2310258T3 (en) 2018-01-06
EP2310258B1 (en) 2017-08-09
SE532546C2 (en) 2010-02-16
EP2310258A4 (en) 2017-02-22
WO2009128761A1 (en) 2009-10-22

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