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US4420533A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for coating submerged portions of floating structures

Assignee: PREISER HERMAN S
•
Filing: 1981-10-23
•
Granted: 1983-12-13
•
Expires: 2001-10-23
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Abstract

Abstract A coating for ship hulls is designed for application to areas of the hull not accessible when ship is in dry dock. The means for applying the coating may take several forms: (1) a multilayered tape system having impregnated in or carrying a water soluble intermediate layer antifoulant; (2) a sponge like layer containing impregnated antifoulant paint or coating liquid which can be squeezed therefrom onto the hull; (3) a sponge having mixed therein microspheres of resin and pigment and microspheres of activator material such that when the microspheres are crushed, the pigmented resin, which may also contain an antifoulant, and the activator are mixed and cured to form a coating on the hull. The preferred means and method for applying the coating, is to mount the tape system on the dock blocks in a dry dock before the dry dock is flooded to admit the ship, and then activate the coating by settling the ship onto the blocks as the water is withdrawn from the dry dock. The coating may be applied by hand to small areas of damaged coating of the ship hull.

Inventors

  • 👤 Herman S. Preiser
  • 👤 Arthur Ticker
  • 👤 Kenneth J. Hatley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 09:11
CPC Classifications
B; B63; B63B; B63B59/00; B05; B05C; B05C1/00; B05C1/04; B05C1/16; B05C9/00; B05C9/08; B05C9/10; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/14; Y10T428/1476; Y10T428/1481; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/28; Y10T428/2835; Y10T428/2839; Y10T428/2843; Y10T428/2848; Y10T428/31504; Y10T428/31551; Y10T428/31855

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 110 words
A multilayered tape sandwich structure for use in coating those areas of a ship hull obscured by the docking block when the ship is in dry dock comprising: a first tape for attachment to the ship hull; an adhesive operable underwater applied to one face of the first tape for adhering said tape to the ship hull; a second tape for attachment to the supporting surface of a docking block; a water soluble soap means interspersed between said first tape and said second tape to provide ease of separation and to accommodate sliding movement between said tapes; and an adhesive means for attaching said second tape to a docking block.
Claim 2
Dependent Claim 110 words
A multilayered tape sandwich structure for use in coating those areas of a ship hull obscured by the docking block when the ship is in dry dock comprising: a first tape for attachment to the ship hull; an adhesive operable underwater applied to one face of the first tape for adhering said tape to the ship hull; a second tape for attachment to the supporting surface of a docking block; a water soluble soap means interspersed between said first tape and said second tape to provide ease of separation and to accommodate sliding movement between said tapes; and an adhesive means for attaching said second tape to a docking block.
Claim 3
Dependent Claim 19 words
A multilayered tape sandwich as claimed in claim 1 which said first tape is made of a vinyl material.
Claim 4
Dependent Claim 18 words
A multilayered tape sandwich as claimed in claim 1 in which said first tape is made of polyurethane.
Claim 5
Dependent Claim 43 words
A multilayered tape sandwich as claimed in claim 1, further comprising; a layer of antifoulant material interposed between the first tape and the means interspersed between the first and second tapes, and the layer of antifoulant material is secured to the first tape.

References Cited (Backward Citations)

US3640791A Cited
US3761334A Cited
US4182789A Cited
US4321101A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-12-12 1987-06-13 1987-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-12-12 1991-06-13 1991-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-12-12 1995-06-13 1995-12-13 $7700.00 Window Closed / Lapsed

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