Method for impregnation of wood by pressure surges during immers

Details Method for impregnation of wood by pressure surges during immers Method for impregnation of wood by pressure surges during immers

1973-09-20

1976-10-19

Gwinnell, Harry J.

Coating processes

Vacuum utilized prior to or during coating

Organic base

21 7, 427331, 427348, 427369, 427440, B05D 300, B05D 304

Patent

active

039872190

ABSTRACT:
Unit loads of wood, surrounded by a small quantity of liquid, are impregnated in sturdy vessels provided with a cover. After or during an impregnation period under vacuum, the impregnation is completed by subjecting the liquid and the wood to pressure surges or impacts of such an intensity that the wood is deformed in the direction of length of the fibers or in the radial or tangential direction thereof within a range between the average pressure causing breakdown of the wood material and one-third of that average pressure. Intensity of pressure surges increases as the vessels are filled with impregnation liquid. Pressure waves may be produced by means of either compressed air, steam or explosive gas. A connecting chamber is provided for preparation and storage of the impregnation liquid.

REFERENCES:
patent: 2210832 (1940-08-01), Bright
patent: 2786784 (1957-03-01), Henriksson
patent: 2931737 (1960-04-01), Thornton
patent: 3137607 (1964-06-01), Goldstein et al.
patent: 3233579 (1966-02-01), Arvidsson
patent: 3467546 (1969-09-01), Page et al.
patent: 3632409 (1972-01-01), Barnett
patent: 3671299 (1972-06-01), Barnett
patent: 3677805 (1972-07-01), Barnett
patent: 3801360 (1974-04-01), Dahlgren

Affiliated with

Also associated with

Rating

Method for impregnation of wood by pressure surges during immers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for impregnation of wood by pressure surges during immers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for impregnation of wood by pressure surges during immers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-103275