EP0200858A2
Expired / Lapsed
EP
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Method and apparatus for removing substances adhering to surface
Assignee: Jse Corp
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Filing: 1986-02-25
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Granted: —
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Expires: 2006-02-25
Abstract
Abstract A method and apparatus for removing substances adhering to a surface such as a wall of buildings in which a nozzle head having a plurality of nozzles is rotated eccentrically and moved sidewardly when used. The diameter of each of the nozzles is selected so as to be within a range of 0.05 to 0.5 mm, the pressure to be supplied to the nozzles is 800 kg/cm 2 or more, the total amount of water jetted from each of the nozzles in 12 I/min or less and the number of revolutions of the nozzle head is 800 to 4000 rpm.
Inventors
- 👤 Takayuki Adachi
- 👤 Nobuo Nakano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:23
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/002; B; B05; B05B; B05B1/00; B05B1/14; B05B1/1421; B05B1/1423; B05B13/00; B05B13/02; B05B13/04; B05B13/0421; B05B15/00; B05B15/14; B05B15/16; B05B3/00; B05B3/02; B05B3/025; B05B3/026; B05B9/00; B05B9/01; B08; B08B; B08B3/00; B08B3/02; B08B3/026; B08B3/028; Y; Y10; Y10S; Y10S239/00; Y10S239/19
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
A method for removing substances adhering on a surface which is characterized in that a nozzle head with a plurality of nozzles opening on the front face thereof and disposed at different positions thereon is held by a holder in such a manner that it may continuously revolve around a center which is deviated from an axis of the nozzle head, the nozzle head is moved substantially in parallel with the surface to be treated while jetting high-pressure water from the nozzles onto the surface, the diameter of each of the unit nozzles is selected to be 0.05 to 0.5 mm, the water pressure to be supplied to each of the unit nozzles is 800 kg/cm 2 or more, the total amount of water jetted from each of the nozzles is 121-/min or less and the number of revolutions of the nozzle head is 800 to 4000 rpm.
Claim 2
Independent Claim
148 words
A method for removing substances adhering on a surface which is characterized in that a nozzle head with a plurality of nozzles opening on the front face thereof and disposed at different positions thereon is held by a holder in such a manner that it may continuously revolve around a center which is deviated from an axis of the nozzle head, the nozzle head is moved substantially in parallel with the surface to be treated while jetting high-pressure water from the nozzles onto the surface, the diameter of each of the unit nozzles is selected to be 0.05 to 0.5 mm, the water pressure to be supplied to each of the unit nozzles is 800 kg/cm 2 or more, the total amount of water jetted from each of the nozzles is 121-/min or less and the number of revolutions of the nozzle head is 800 to 4000 rpm.
Claim 3
Dependent Claim
22 words
A method according to claim 1, wherein the amount of water jetted from each of the nozzles is 0.1 to 12ℓ /min.
Claim 4
Dependent Claim
32 words
A method according to claim 1, wherein the water pressure is 800 to 5000 kg/cm Z and the total amount of water jetted from the nozzles is 1.5 to 12 jL/ min.
Claim 5
Dependent Claim
87 words
A nozzle structure for use in an apparatus for removing substances adhering on a surface, which comprises nozzle tip formed with an opening having a reduced diameter portion and a tapering portion; said reduced diameter portion having a length corresponding to 1/2 to 2/3 of the thckness of the nozzle tip; nozzle tip holding members fitted in a recess formed in a nozzle head for holding the nozzle tip; and a nut with a hexiagonal groove for fixing the nozzle tip in a position within the recess.
Claim 6
Dependent Claim
87 words
A nozzle structure for use in an apparatus for removing substances adhering on a surface, which comprises nozzle tip formed with an opening having a reduced diameter portion and a tapering portion; said reduced diameter portion having a length corresponding to 1/2 to 2/3 of the thckness of the nozzle tip; nozzle tip holding members fitted in a recess formed in a nozzle head for holding the nozzle tip; and a nut with a hexiagonal groove for fixing the nozzle tip in a position within the recess.
Claim 7
Dependent Claim
43 words
A nozzle structure according to claim 4, wherein said nozzle tip is made of diamond, said nozzle tip holding members are made of a monel metal, said nut is made of stainless steel and said nozzle head is made of a titanium alloy.
References Cited (Backward Citations)
No citation records indexed.
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