EP0181310A1 - Scraper for removing growths on flat or arched surfaces - Google Patents

Scraper for removing growths on flat or arched surfaces Download PDF

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Publication number
EP0181310A1
EP0181310A1 EP85870145A EP85870145A EP0181310A1 EP 0181310 A1 EP0181310 A1 EP 0181310A1 EP 85870145 A EP85870145 A EP 85870145A EP 85870145 A EP85870145 A EP 85870145A EP 0181310 A1 EP0181310 A1 EP 0181310A1
Authority
EP
European Patent Office
Prior art keywords
scraper
knives
curl
disk
shape
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.)
Withdrawn
Application number
EP85870145A
Other languages
German (de)
English (en)
French (fr)
Inventor
Boud Van Rompay
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0181310A1 publication Critical patent/EP0181310A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • 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

Definitions

  • This invention relates to a scraper for removing calcareous growths, anemones, mussels, sea-weeds or algae, etc. on flat or arched surfaces.
  • the invention has for object to provide a scraper which obviates the drawbacks of the scouring disks or scrapers known up to now and which also makes it possible then to loosen calcareous growths with any structure and extent whatsoever from flat or arched surfaces, and thereby letting undamaged the paint coat on the structures being treated.
  • the scraper is formed according to the invention by a motor-driven disk with a number radial knives distributed along the circumference thereof, which knives have a structure allowing bending thereof along at least two planes, namely that lengthwise symmetry plane wherein the knife extends and a plane which extends at right angle to said first plane and in parallel relationship with the disk geometrical axis.
  • the scraper according to the invention is essentially comprised of a disk 1 whereon a number radial curled knives 2 are secured.
  • the knives 2 are cantilever ones, which means that the free end thereof does not bear on some surface of disk 1.
  • Other shapes of cantilever knives are shown in figures 7, 8, 9, 10 and in some way 12.
  • Cantilever knives have as compared to loop-shaped knives which bear with both ends thereof on disk 1 from the scraper, the very large advantage of bending or deflecting in that location where they engage the surfaces to be cleaned. Such deflection occurs due to the knives tapering towards the free end thereof or having a thickness which is progressively reduced towards the free end. Both these features may naturally be combined.
  • Loop-shaped knives are then to be used efficiently but when they have locally a thickness which gets progressively thinner.
  • the knife may narrow in the direction of the contact point with the surface to be cleaned, or narrow in an arbitrary location as far as this allows the knife deflecting.
  • FIG 2 it is made clear how a disk 3 fitted with flat knives 4 extending outwards along the circumference, is retained by calcareous growths 5.
  • the knives 4 do indeed enter to a limited depth the grown mass, but such mass then directly forms an obstacle to disk 3 which can not further enter or at least but with great difficulty, the growths to be scoured.
  • the drawback of such scrapers is mostly evident when calcareous growths are being treated.
  • Such straight knives 4 unavoidably damage the paint coat on the surfaces to be scoured. This is also a very substantial drawback of scouring disks fitted with said straight-type knives.
  • the shells or other calcareous growths, anemones, sea-weeds and algae are treated in accordance with a completely new principle. Due to the curl shape of the knives with a cantilever end (figure 3), the disk edge 6 never does engage the growths or deposits to be removed. Same are continuously attacked by the radially-arranged curled knives, in such as a way that said growths and deposits continuously break-off and may be removed from the surface to be scoured without the scraper being hampered or slowed-down in the movement thereof as shown by arrow 7 (figure 3).
  • said knives When the knives are moved over an obstacle such as a welding seam 9 for example, said knives also bend as well in the lengthwise symmetry plane of the knife as in a plane which lies at right angle thereto and extends in parallel relationship with the geometrical axis of disk 1.
  • the reference numeral 10 shows a surface to be cleaned where a welding seam 9 is present, or where growths such as as mussels 12 occur. That direction the knives 2 move along, is shown by arrow 11.
  • curled covers a series possible embodiment shapes figures 1, 3 and 7 to 13 pertain to.
  • teeth are self-sharpening. Due to the shape and section thereof, the knives and the disk they are secured on, may in many cases be cast as a single part. This is notably true when such components are made from a synthetic material. Many embodiments allow making the disk with the teeth by injection-moulding or casting.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)
  • Knives (AREA)
EP85870145A 1984-10-31 1985-10-29 Scraper for removing growths on flat or arched surfaces Withdrawn EP0181310A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE213940 1984-10-31
BE0/213940A BE900965A (nl) 1984-10-31 1984-10-31 Schraper voor het wegwerken van aangroeisels op vlakke of boogvormige oppervlakken.

Publications (1)

Publication Number Publication Date
EP0181310A1 true EP0181310A1 (en) 1986-05-14

Family

ID=3843812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85870145A Withdrawn EP0181310A1 (en) 1984-10-31 1985-10-29 Scraper for removing growths on flat or arched surfaces

Country Status (9)

Country Link
EP (1) EP0181310A1 (no)
JP (1) JPS62500651A (no)
AU (1) AU587996B2 (no)
BE (1) BE900965A (no)
BR (1) BR8507012A (no)
IN (1) IN166296B (no)
NO (1) NO862500L (no)
OA (1) OA08365A (no)
WO (1) WO1986002612A1 (no)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218286A1 (en) * 1985-09-17 1987-04-15 Gerrit Broersz A working method and a device for the removal of growth from constructions under the sea level
EP0270333A2 (en) * 1986-12-01 1988-06-08 B & J MANUFACTURING COMPANY Abrading apparatus and process for making the same
WO1997000737A1 (en) * 1995-06-20 1997-01-09 Dmitry Sergeevich Tuknov A scrubbing device
WO2015189692A3 (en) * 2014-06-11 2016-03-10 Cgg Services Sa Biofouling removal mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166342B (en) * 1984-10-06 1988-02-10 Gerritt Broersz Underwater scouring apparatus
US9546463B2 (en) 2011-07-01 2017-01-17 Iev Group Sdn. Bhd Self-cleaning apparatus for the prevention of marine growth

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160750A (en) * 1920-03-23 1922-02-08 William John Pattosien Power ship cleaning device
DE665083C (de) * 1935-10-16 1940-04-13 Anton Montagne Schleifscheibe fuer weiche Werkstoffe
US2660746A (en) * 1948-07-02 1953-12-01 Internat Paint Company Inc Power-driven cleaning brush
NL6700959A (no) * 1966-01-21 1967-07-24
US3628489A (en) * 1969-11-10 1971-12-21 Global Marine Inc Hull-cleaning brush
GB2022520A (en) * 1978-06-01 1979-12-19 Lundberg Marinkonsult Cleaning shiphs hulls
GB2135571A (en) * 1983-02-11 1984-09-05 Underwater Maintenance Company Cleaning underwater surfaces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6700949A (no) * 1967-01-20 1968-07-22

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160750A (en) * 1920-03-23 1922-02-08 William John Pattosien Power ship cleaning device
DE665083C (de) * 1935-10-16 1940-04-13 Anton Montagne Schleifscheibe fuer weiche Werkstoffe
US2660746A (en) * 1948-07-02 1953-12-01 Internat Paint Company Inc Power-driven cleaning brush
NL6700959A (no) * 1966-01-21 1967-07-24
US3628489A (en) * 1969-11-10 1971-12-21 Global Marine Inc Hull-cleaning brush
GB2022520A (en) * 1978-06-01 1979-12-19 Lundberg Marinkonsult Cleaning shiphs hulls
GB2135571A (en) * 1983-02-11 1984-09-05 Underwater Maintenance Company Cleaning underwater surfaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MOTORSHIP, vol. 64, suppl. 765, April 1984, page 20, London, GB: "Hull cleaning robot helps Normed diversify" *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218286A1 (en) * 1985-09-17 1987-04-15 Gerrit Broersz A working method and a device for the removal of growth from constructions under the sea level
EP0270333A2 (en) * 1986-12-01 1988-06-08 B & J MANUFACTURING COMPANY Abrading apparatus and process for making the same
EP0270333A3 (en) * 1986-12-01 1990-03-21 B & J MANUFACTURING COMPANY Abrading apparatus and process for making the same
WO1997000737A1 (en) * 1995-06-20 1997-01-09 Dmitry Sergeevich Tuknov A scrubbing device
WO2015189692A3 (en) * 2014-06-11 2016-03-10 Cgg Services Sa Biofouling removal mechanism

Also Published As

Publication number Publication date
JPS62500651A (ja) 1987-03-19
WO1986002612A1 (en) 1986-05-09
IN166296B (no) 1990-04-07
BE900965A (nl) 1985-02-15
AU587996B2 (en) 1989-09-07
NO862500D0 (no) 1986-06-23
BR8507012A (pt) 1987-01-06
OA08365A (en) 1988-02-29
AU4868685A (en) 1986-05-15
NO862500L (no) 1986-06-23

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): DE FR GB IT NL SE

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Effective date: 19861030

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Effective date: 19870519

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18W Application withdrawn

Withdrawal date: 19870717