Method and apparatus for impregnating a liquid into wood and far

Details Method and apparatus for impregnating a liquid into wood and far Method and apparatus for impregnating a liquid into wood and far

1988-09-15

1991-02-12

Silverman, Stanley

Coating processes

Vacuum utilized prior to or during coating

Organic base

427 8, B05D 500

Patent

active

049923072

ABSTRACT:
A method and apparatus for impregnating a liquid such as a resinous liquid into wood, in which timbers to be subjected to the impregnation are placed in a presure tank which is capable of reducing or increasing the interior pressure thereof; the inside of the pressure tank is evacuated through a monitoring timber identical in properties with the timbers to be subjected to the impregnation, to expel the air present in the tank and the timbers; the liquid is injected into the pressure tank under pressurized conditions, while continuing the evacuation, to impregnate the liquid into the timbers; and the impregnation is completed when the liquid begins to flow out of the tank through the monitoring timber.

REFERENCES:
patent: 866487 (1907-09-01), Kuckuck
patent: 1081158 (1913-12-01), Shipley
patent: 1838585 (1931-12-01), Smith
patent: 2140981 (1938-12-01), Booty et al.
patent: 2668779 (1954-02-01), Herman

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