Ships – Ice breakers
Reexamination Certificate
2006-12-19
2006-12-19
Avila, Stephen (Department: 3617)
Ships
Ice breakers
C405S061000
Reexamination Certificate
active
07150239
ABSTRACT:
A body of water is aerated by propelling in the body of water a water pumping arrangement including a sheath having a turning propeller that (a) sucks water from the body into the sheath interior via openings in the sheath, (b) forces the sucked water upwardly and (c) forces the upwardly forced water through another opening in the sheath below the surface of the body of the water. Water forced through the another opening (i) has speed greater than the speed of the water sucked into the sheath and (ii) causes air bubbles to be induced in the water above the another opening.
REFERENCES:
patent: 2825541 (1958-03-01), Moll et al.
patent: 3320160 (1967-05-01), Welles et al.
patent: 3717115 (1973-02-01), Abendroth
patent: 3855367 (1974-12-01), Webb
patent: 4247261 (1981-01-01), Springston
patent: 4439060 (1984-03-01), Liscio
patent: 4587064 (1986-05-01), Blum
patent: 4723498 (1988-02-01), Stampe
patent: 5022987 (1991-06-01), Wells
patent: 5868091 (1999-02-01), Gross
patent: 6231268 (2001-05-01), Hausenbauer
“Ice Eater—Protects your Boad and Dock from Ice” (advertisement brochure), manufactured by the Powerhouse Inc., Owings Mills, MD (related to U.S. Patent 4,247,261).
The Power House Inc.—Products for Aquaculture & Pond Beautification) (advertisement brochure), Owings Mills, MD.
Blumenthal John
Gamber Charles
Avila Stephen
Lowe Hauptman & Berner LLP
The Power House, Inc.
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