Agitating – Mortar mixer type – Methods
Patent
1994-12-06
1997-08-26
Scherbel, David
Agitating
Mortar mixer type
Methods
366 13, 366 15, 366 51, B28C 510
Patent
active
056604653
ABSTRACT:
An apparatus and method for introducing a metered volume of air into a continuously generated and flowing slurry composed of metered dry cementitious material, metered water and metered air entraining (or foaming) agent and for homogenizing this air into bubbles or cells of relatively small size to produce a uniform cellular product. The apparatus comprises a positive displacement progressive cavity slurry pump driven by a variable speed motor. By driving the pump at a speed in excess of the speed required to accommodate the volume of slurry being generated, the pump will draw air proportionately to this excess of speed. Further elements of the apparatus comprise a closed conduit system for the slurry discharging from the pump, this system communicating with a cylindrical homogenizing apparatus wherein rotating elements homogenize the metered air and slurry with the cooperation of the air entraining agent into a foamed material having relatively small air cells of uniform size. The homogenized slurry material is propelled through and beyond the homogenizing apparatus through a communicating conduit to the point of deposit.
REFERENCES:
patent: 3006615 (1961-10-01), Mason, Jr.
patent: 3307792 (1967-03-01), Hughes et al.
patent: 4106116 (1978-08-01), MacKay
patent: 4298288 (1981-11-01), Weisbrod
patent: 5141363 (1992-08-01), Stephens
patent: 5419632 (1995-05-01), Stephens
Chin Randall E.
Scherbel David
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