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US 9,956,591 B2Granted
Method and apparatuses for screening
AssigneeDerrick Corporation
InventorsKeith Wojciechowski, Christian Newman
Life of this patent
Estimating the term…
Abstract
A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.
Claims24
A screen assembly for a vibratory screening machine, comprising:
- a frame including a first side member and a second side member opposite the first side member;
- and
- a screening surface attached to the frame between the first side member and the second side member,
- the frame and the screening surface configured to flex and form a predetermined concave shape when the frame is placed in the vibratory screening machine and subjected to a compression force that acts against the first side member and drives the second side member against a surface of the vibratory screen machine.
1 more element
A screen assembly for a vibratory screening machine, comprising:
- a frame including a first side edge flange and a second side edge flange opposite the first side edge flange;
- and
- a screen supported by the frame,
- the screen assembly configured to form a predetermined concave shape when placed in the vibratory screening machine and subjected to a compression force that acts against the first side edge flange and drives the second side edge flange against a surface of the vibratory screening machine.
1 more element
A system, comprising:
- a screen assembly and a vibratory screening machine, wherein the vibratory screening machine includes a first wall member, a second wall member, a concave support surface located between the first and second wall members, and a compression assembly, wherein the screen assembly includes a frame having a side member and a screen attached to the frame, wherein the frame forms into a predetermined concave shape and has a concave screening surface when the frame is placed in the vibratory screening machine and subjected to a compression force against the side member, wherein the screen assembly is positioned above the concave support surface and between the first and second wall members, wherein the compression assembly drives the screen assembly into the second wall member and forms the screen assembly into a concave shape against the concave support surface.
Dependencies are inferred from the claim text.