Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1993-01-14
1994-02-15
Savage, Matthew O.
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
37307, 37394, B01D 2118
Patent
active
052863840
ABSTRACT:
A sludge scraper (10) for scraping sludge (107) from the bottom of a reservoir (100) is disclosed herein. The scraper includes a main frame (11) that provides for the mounting of a pair of skids (15), a scraper blade (17), and a pair of wheels (25). A first tow line (27) is connected between the frame and a first winch (109) mounted on a first shore (103) of the reservoir. A second tow line (41) is connected between the skids and a second winch (111) mounted on a second shore (105) of the reservoir. The first winch moves the plow over the bottom to plow sludge towards the first shore. The second winch causes the apparatus to rotate about the wheels so that the scraper blade is lifted off the bottom of the reservoir and the skids contact the bottom of the reservoir to facilitate movement of the apparatus toward the second shore for another pass.
REFERENCES:
patent: 1918742 (1933-07-01), Elrod
patent: 1919689 (1933-07-01), Elrod
patent: 2009559 (1935-07-01), Mieder
patent: 2033291 (1936-03-01), Laughlin et al.
patent: 2101080 (1937-12-01), Lund
patent: 3410412 (1968-11-01), Fechter
patent: 4184958 (1980-01-01), Manchak, Jr.
patent: 4417983 (1983-11-01), Smigerski et al.
patent: 4724088 (1988-02-01), Zetterlund
Enviroland, Inc.
McLeod Ian C.
Savage Matthew O.
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