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AssigneeDerrick Manufacturing 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 tensioning member comprising an elongated body, a base on said elongated body, and a plurality of spaced flexible resilient fingers on said base extending longitudinally of said body, each of said fingers having a first portion joined to said base, and a second portion joined to said first portion and which terminates at a free outer end, said second portion being narrower than said first portion.
A vibratory screen tensioning member comprising an elongated body, a base on said elongated body, and a plurality of spaced flexible resilient fingers on said base extending longitudinally of said body, said base being substantially U-shaped in cross section and including first and second sides with a U-bend therebetween.
A vibratory screening machine comprising a frame, opposed first and second side walls on said frame, a fixed screen-engaging member on said first wall, a movable screen-engaging member on said second wall, said fixed screen-engaging member comprising a series of first spaced fingers proximate said first wall, and said movable screen-engaging member comprising a series of spaced flexible and resilient second fingers on an elongated U-shaped body mounted proximate said second wall.
A vibratory screening machine comprising a frame, opposed first and second side walls on said frame, a fixed screen-engaging member on said first wall, a movable screen-engaging member on said second wall, said fixed screen-engaging member comprising a series of first spaced fingers proximate said first wall, said movable screen-engaging member comprising a series of spaced second fingers proximate said second wall, with at least one of said first and second series of spaced fingers being flexible and resilient, a screen, a plate on said screen, first and second side edges on said screen, first and second series of spaced apertures on said first and second side edges, respectively, said first and second fingers being located in said first and second spaced apertures, respectively, first and second sides in said first and second apertures, respectively, said first and second fingers engageable with said first and second sides, respectively, said first and second fingers being spaced a predetermined distance apart when said screen is in an untensioned condition, said first and second fingers being located on first and second elongated bodies, respectively, said second elongated body being movable to a second predetermined distance from said first elongated body to thereby tension said plate, a bolt extending substantially perpendicularly to said second elongated body, a cam body mounted on said second side wall and mounting said bolt, and a cam follower secured to said bolt and positioned adjacent to said cam body.
A vibratory screen comprising a plate, first and second side edges on said plate, first and second series of spaced apertures proximate said first and second side edges, respectively, first and second flanges on said plate located outwardly of said first and second series of apertures, respectively, an undulating screen on said plate, and first and second side edges on said screen secured to said first and second flanges, respectively, said first and second side edges of said screen including first and second side edge portions spaced from said first and second flanges, respectively, and first and second bonding agents between said first and second side edge portions and said first and second flanges, respectively.
A vibratory screen comprising a plate, first and second side edges on said plate, first and second series of spaced apertures proximate said first and second side edges, respectively, first and second flanges on said plate located outwardly of said first and second series of apertures, respectively, an undulating screen on said plate, ridges and troughs on said undulating screen, and first and second outermost portions on said screen adjacent to said first and second flanges, overlying said first and second series of apertures and being spaced therefrom.
Dependencies are inferred from the claim text.