Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-09-19
1977-06-28
Granger, Theodore A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
55277, 209 1, 210DIG22, 210 83, 210242R, B01D 3700
Patent
active
040324389
ABSTRACT:
Apparatus employing an ultrasonic focusing transducer is provided for removing a contaminant such as oil which is floating on the surface of a body of water. The transducer is supported beneath the water surface with its focal region aimed at the underside of the contaminant oil. A source of alternating current is connected to the transducer to generate ultrasonic waves which travel through the water and converge at the focal region. The apparatus includes a collecting arrangement which catches most of the oil bounced upwardly as the result of the focused ultrasonic waves before that upwardly discharged oil can fall back onto the water surface.
The method of using such an apparatus.
REFERENCES:
patent: 2578505 (1951-12-01), Carlin
patent: 3109721 (1963-11-01), Zenner
patent: 3713987 (1973-01-01), Low
patent: 3785496 (1974-01-01), Smith, Jr.
patent: 3789988 (1974-02-01), Valibouse
patent: 3871623 (1975-03-01), Boenisch
patent: 3945618 (1976-03-01), Shoh
High Intensity Ultrasonics, Brown & Goodman, pp. 217-220, D. Van Nostrond Co., Inc., Princeton, N.J.
Granger Theodore A.
Ocean Ecology Ltd.
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