Method and apparatus for treating cellulosic products

Coating processes – With post-treatment of coating or coating material – Vacuum or reduced pressure utilized

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

118 50, 118 501, 427377, 427378, 427440, 427441, C23C 1308, B05D 118, B05D 312

Patent

active

043438407

ABSTRACT:
A method and apparatus for impregnating low density fiberboard with asphalt is disclosed, and which includes stacking the sheets, placing the stacks in a sealable chamber, and flooding the chamber with a treating solution composed of a mixture of asphalt and solvent. The chamber is thereafter drained, and the fiberboard is then heated by the injection of live steam into the chamber. A partial vacuum is then drawn in the chamber, while condensing and separating the withdrawn solvent and water vapors. Both the condensed solvent and water of the steam injection system are maintained in closed conduit systems to permit their reuse and to prevent contamination of the environment.

REFERENCES:
patent: 1184452 (1916-05-01), Hopewell
patent: 1499791 (1924-07-01), Shipley
patent: 1513928 (1924-11-01), Oenslager et al.
patent: 1713388 (1929-05-01), Kobiolke
patent: 1756797 (1930-04-01), Rawson
patent: 1811107 (1931-06-01), Barnebey
patent: 2007753 (1935-07-01), Ericson
patent: 2135030 (1938-11-01), Boller
patent: 2303257 (1942-11-01), Campbell et al.
patent: 2334586 (1943-11-01), Shipley
patent: 2839838 (1958-06-01), Munters
patent: 2901425 (1959-08-01), Waddill
patent: 3959529 (1976-05-01), Winn et al.
patent: 3967011 (1976-06-01), Dunn
patent: 3968276 (1976-07-01), Allen
patent: 4062991 (1977-12-01), Kyte et al.
patent: 4175034 (1979-11-01), Thompson
patent: 4247332 (1981-01-01), Kihoshita et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for treating cellulosic products 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 and apparatus for treating cellulosic products, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for treating cellulosic products will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1531466

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.