Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – To remove or spread applied coating by gas blast
Patent
1995-12-04
1996-10-15
Warden, Robert
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
To remove or spread applied coating by gas blast
118315, 222617, 239418, 239424, B05B 716
Patent
active
055650325
ABSTRACT:
Apparatus for preserving porous structures, including masonry structures with embedded structural steel or reinforcing steel elements, applies a liquid preservative material to an exposed surface of the structure using the force of a compressed air blast at high velocity to meet, atomize, and inject the liquid preservative deeply into the porous structure. Separate manifolds each having multiple spaced nozzles are provided for the liquid preservative and for the air blasts, both manifolds being covered by a shroud. The manifolds and their nozzles are positioned and arranged so that, as the liquid is deposited on the surface of the structure, the high-velocity blast of air, arriving at the same area at the same time, atomizes, injects and forces the liquid into the interior of the structure, so as to coat the intersticies of the inner porous structure, including any reinforcing steel therein, the high-velocity air blast acting as a fluid hammer. A carrier for the apparatus is provided for moving it along the surface being treated. The preservation of structures occurs without the need of disturbing, breaking open or repairing brick, concrete, masonry, stone or even wood structures.
REFERENCES:
patent: 3987964 (1976-10-01), Pittman et al.
patent: 4204495 (1980-05-01), Wyner
patent: 4395457 (1983-07-01), Wyner
patent: 4448818 (1984-05-01), Hartog et al.
Altman Nathaniel
Dawson E. Leigh
Warden Robert
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