Liquid purification or separation – Plural distinct separators – Filters
Patent
1974-11-29
1976-06-01
Wyse, Thomas G.
Liquid purification or separation
Plural distinct separators
Filters
210353, 210385, 210413, 210DIG18, 209323, B07B 148, B01D 2904
Patent
active
039607313
ABSTRACT:
A self cleaning screen assembly according to the present invention is adapted for utilization in conjunction with an oscillating mechanical separator incorporating a screen framework having a screen and a perforated support plate connected thereto and disposed in spaced relation. The screen is defined by a wire mesh and accomplishes the primary screening function while the support plate is defined by a perforated metal plate which serves a supporting function for a plurality of screen cleaning devices that are disposed in the space between the screen and plate. The height of each of the screen cleaning devices is slightly less than the spacing of the screen and plate while the width thereof exceeds the spacing of the screen and plate, allowing the screen cleaning devices to be movable relative to the screen and while preventing them from becoming misoriented due to oscillation of the mechanical separator. A scraper blade means is carried by each of the screen cleaning devices. The upper portions of the scraper blades are disposed above the upper portion of the screen cleaning devices for scraping engagement with the lower surface of the screen as the mechanical separator oscillates the screen assembly. The scraping action removes any material that might be clinging to the upper screen. The separator includes a generally horizontally disposed screen oscillating shaft having eccentric weights connected thereto, the rotary shaft being disposed in generally parallel relation to the plane defined by the screen, thereby causing the rotary shaft to impart generally vertical orbital oscillation to the screen assembly.
REFERENCES:
patent: 699026 (1902-04-01), Shaler
patent: 979685 (1910-12-01), Mumford
patent: 1925447 (1933-09-01), Keefer
patent: 2304325 (1942-12-01), Williams et al.
patent: 3508649 (1970-04-01), Kahane et al.
patent: 3748835 (1973-07-01), Panzica
patent: 3841482 (1974-10-01), Barrows et al.
patent: R26736 (1969-12-01), Swallow
Spitzer Robert H.
Wyse Thomas G.
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