Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-05-25
1990-05-01
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
5216913, 52170, 52514, 156 71, 156 94, 156215, 156330, 264 36, 405216, 428 63, B32B 3500
Patent
active
049215558
ABSTRACT:
A process for reinforcing and repairing utility poles and the like, including the steps of placing gasket layers above and below the area to be repaired and a resin pervious layer, such as fiberglass, between the two gaskets followed by the step of wrapping the area from the lower gasket to a point near the upper gasket with a resin impervious layer, such as duct tape. Next, a liquid resin is preferably injected under pressure into the space between the utility pole and the resin impervious layer. Holes may be drilled to guide the resin into the interior of the pole, and injection tubes may be inserted into the hole to further direct the resin into the interior of the pole. The resin is then allowed to cure. Preferably, vertical grooves are formed in the exterior of the pole, and reinforcing rods are placed therein before the resin is injected.
REFERENCES:
patent: 3177667 (1965-04-01), Liddell
patent: 3390951 (1968-07-01), Finger et al.
patent: 4244156 (1981-01-01), Watts
patent: 4306821 (1981-12-01), Moore
patent: 4543764 (1985-10-01), Kozikowski
patent: 4764054 (1988-08-01), Sutton
patent: 4779389 (1988-10-01), Landers
Averill, Jr. Edgar W.
Dawson Robert A.
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