Patent US4522882A successfully refreshed from Google Patents.
US4522882A
Expired / Lapsed
US
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Method and apparatus for coating submerged portions of floating structures
Assignee: PREISER HERMAN S
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Filing: 1983-09-19
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Granted: 1985-06-11
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Expires: 2003-09-19
Abstract
Abstract A coating for ship hulls is designed for application to areas of the hull t 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 an antifoulant and having a water soluble intermediate layer; (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is flooded to admit the ship, and by the settling then activate the coating the ship onto the blocks as the water is withdrawn from the dry dock.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
2026-11-08 04:47
CPC Classifications
B; B63; B63B; B63B59/00; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1414; Y10T428/28; Y10T428/2835; Y10T428/2839; Y10T428/2848
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
177 words
A multilayered expanded compressible structure for use in coating the surface areas of a ship hull which are rendered inaccessible by docking blocks when the ship hull is directly supported thereon in dry dock, comprising: a compressible first tape layer for attachment to a ship hull, adhesive means on one face of the tape structure for attaching the first tape layer to the ship hull; a second tape layer for attachment to supporting surfaces of the docking blocks, compressible means interspersed between the first and second tape layers for providing ease of separation between the tape layers and to accomodate sliding movements therebetween as the ship hull settles onto the docking blocks, and means for attaching the second tape layer to the docking blocks, and said first tape layer comprises an elastomeric matrix containing a two component system of resin-filled and activator-filled microspheres which fracture and mix together as the ship hull settles onto the docking blocks, said elastomeric matrix material, resin, and activator thereby combine to produce a coating layer which cures on the hull surface.
Claim 2
Dependent Claim
177 words
A multilayered expanded compressible structure for use in coating the surface areas of a ship hull which are rendered inaccessible by docking blocks when the ship hull is directly supported thereon in dry dock, comprising: a compressible first tape layer for attachment to a ship hull, adhesive means on one face of the tape structure for attaching the first tape layer to the ship hull; a second tape layer for attachment to supporting surfaces of the docking blocks, compressible means interspersed between the first and second tape layers for providing ease of separation between the tape layers and to accomodate sliding movements therebetween as the ship hull settles onto the docking blocks, and means for attaching the second tape layer to the docking blocks, and said first tape layer comprises an elastomeric matrix containing a two component system of resin-filled and activator-filled microspheres which fracture and mix together as the ship hull settles onto the docking blocks, said elastomeric matrix material, resin, and activator thereby combine to produce a coating layer which cures on the hull surface.
Claim 3
Dependent Claim
50 words
The multilayered expanded compressible tape structure according to claim 1, wherein the compressible layer includes a layer of sheet reinforced plastic material bonded to the elastomeric matrix material on the side of the matrix material which is contiguous with the compressible means interspersed between the first and second tape layers.
Claim 4
Dependent Claim
55 words
The multilayered expanded compressible tape structure according to claim 2, wherein the first tape layer further includes an antifoulant coating applied to the glass reinforced plastic material so that the antifoulant is exposed to the environment as the first and second tape layers separate along the means interspersed between the first and second tape layers.
Claim 5
Dependent Claim
48 words
The multilayered expanded compressible tape structure according to claim 1, wherein the first tape layer comprises an elastomeric cushion containing anticorrosive paint which ruptures as the ship hull settles onto the docking blocks to release the anticorrosive paint and thereby coat the inaccessible surface of the ship hull.
Claim 6
Dependent Claim
44 words
The multilayered expanded compressible tape structure according to claim 1, wherein the first tape layer comprises a spongelike elastomeric matrix containing an anticorrosive pastelike material which is squeezed out of the spongelike elastomeric matrix to coat the inaccessible surface areas of the ship hull.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |