Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1985-09-09
1990-12-04
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
134 34, 15320, 15321, B08B 504
Patent
active
049746189
ABSTRACT:
An apparatus and method, particularly adapted to clean fabrics, is disclosed. The apparatus includes a generally hollow head having two foam mixing chambers in close proximity to a vacuum chamber. Foam is generated adjacent the fabric to be cleaned by admixing pressurized air and a liquid foam-producing agent in the two mixing chambers. The air pressure directs the foam from the second mixing chamber towards the fabric. Two screens are used to control the consistency and application of the foam. Suction is simultaneously provided in the vacuum chamber, so that the foam is rapidly and continuously recovered. A brush means is positioned between the second mixing chamber and the vacuum chamber to further agitate the foam and fabric to be cleaned, and to help create a partial pressure when the moving foam is applied to the surface of a fabric.
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Supplemental Statement Pursant to 36 CFR .sctn.1.56, 1.97, 1.98 for Nysted U.S. patent application Ser. No. 145,344, filed 4/30/80 (dated 8/13/80).
Amendment Under 37 CFR .sctn.1.312 and Supplemental Statement Pursuant to 37 CFR .sctn.1.99 for Nysted U.S. patent application Ser. No. 145,344, filed 4/30/80 (dated 12/4/81).
Duraclean International, Inc.
Stinson Frankie L.
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