Textiles: fluid treating apparatus – Machines – Liquid flowing
Reexamination Certificate
2005-03-22
2005-03-22
Stinson, Frankie L. (Department: 1746)
Textiles: fluid treating apparatus
Machines
Liquid flowing
C068S207000
Reexamination Certificate
active
06868701
ABSTRACT:
Disclosed is an improved washing machine equipped with means for generating microbubbles of air in the detergent-containing water circulated from and to the stationary outer tub of the washing machine. Disclosed means for generating microbubbles of air in the detergent-containing water circulated therethrough comprises: (a) an upstream detergent-containing water guide tube connected to the bottom portion of the stationary outer tub; (b) strainer means for filtering out fiber and other foreign object materials contained in the detergent-containing water, which is connected to the upstream water guide tube; (c) air-bubble introducing/feeding means into the detergent-containing water, which is connected to the strainer means; (d) a high-speed single-stage type or multi-stage type pump for generating microbubbles of air; (e) a motor coupled to the pump; (f) a plenum for the mixture of the microbubbles of air and the detergent-containing water under pressure; (g) a pressure-regulator valve for buildup of pressure for the mixture in the plenum; and (h) a downstream microbubble-containing water guide tube connected between the pressure-regulator valve and the outer tub so that the detergent-containing water in the outer tub is circulated therethrough as far as the pump is in operation; whereby each of the air bubbles introduced by suction or pressure feeding into the detergent-containing water through the air-bubble introducing means either by suction or by pressure feeding is dynamically broken into a plurality of microbubbles of air by the leading edge of rotor and/or stator blade of either high-speed single-stage or multi-stage pump.
REFERENCES:
patent: 1743788 (1930-01-01), McKeon
patent: 1948568 (1934-02-01), Faber et al.
patent: 2023013 (1935-12-01), Faber et al.
patent: 2219490 (1940-10-01), Pisarev
patent: 2453620 (1948-11-01), Cathey et al.
patent: 2778499 (1957-01-01), Chamberlain et al.
patent: 4031006 (1977-06-01), Ramirez et al.
patent: 4216085 (1980-08-01), Chittenden
patent: 4727734 (1988-03-01), Kanazawa et al.
patent: 4936689 (1990-06-01), Federighi et al.
patent: 4971449 (1990-11-01), Hendren
patent: 5167798 (1992-12-01), Yoon et al.
patent: 5253380 (1993-10-01), Lim et al.
patent: 5295373 (1994-03-01), Lim et al.
patent: 5307649 (1994-05-01), Lim et al.
patent: 5467492 (1995-11-01), Chao et al.
patent: 5590551 (1997-01-01), Hong
patent: 5651276 (1997-07-01), Purer et al.
patent: 5653129 (1997-08-01), Jang
patent: 6094948 (2000-08-01), Hong et al.
patent: 6170303 (2001-01-01), Hong et al.
patent: 36 31 685 (1988-03-01), None
patent: 694918 (1953-07-01), None
patent: 2-149293 (1990-06-01), None
LandOfFree
Washing machine equipped with means for generating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Washing machine equipped with means for generating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Washing machine equipped with means for generating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3411601