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AssigneeDerrick Corporation
InventorsJames A. Mooney, Keith F. Wojciechowski
Estimating the term…
A vibratory screening machine having opposite sides with a plurality of stationary aligned tensioning members mounted on one side and a plurality of nut actuated movable tensioning members mounted on the opposite side and a vibratory screening screen mounted on the stationary and movable tensioning members. The tensioning members have upstanding fingers which are received in apertures in the plates of the vibratory screen, and the edge portions of the vibratory screen include screening material which extends all of the way to the extreme edges of the supporting plate and the fingers are below the screening material. Also, the tensioning structure is mounted on the side walls of the vibratory screening machine below the vibratory screen.
A vibratory screen assembly comprising a plate including a central portion and first and second plate flanges, the central portion having first and second side edge portions and a first and a second series of finger-receiving apertures located inwardly from said first and second side edge portions, respectively, the first and second plate flanges of said plate located outwardly of said first and second series of finger-receiving apertures, the first and second plate flanges extending from the first and second side edge portions, respectively, of said central portion approximately perpendicular to the central portion of the plate, a screen sub-assembly on said central portion of said plate, and first and second portions of said screen sub-assembly spaced from and overlying said first and second finger-receiving apertures, respectively, and secured to said central portion of said plate inwardly from said first and second finger-receiving apertures and extending toward and attached to said first and second plate flanges, respectively wherein the screen sub-assembly further comprises at least two outer edges formed into planar side planes extending from said first and second portions of said screen sub-assembly parallel to the respective first and second plate flanges and contacting the respective first and second plate flanges.
A vibratory screen assembly comprising:
Dependencies are inferred from the claim text.