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US 11,338,327 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.
Claims20
A screen assembly for a vibratory screening machine, comprising:
- a frame having a screen assembly mating surface;
- and
- a screening surface supported by the frame,
- wherein the screen assembly mating surface is configured to interface with a guide assembly mating surface on a guide assembly of the vibratory screening machine such that the screen assembly is guided into a fixed position on the vibratory screening machine.
1 more element
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,
- wherein the frame and the screening surface are configured to flex and to thereby form a predetermined concave shape when the frame is placed in the vibratory screening machine and is subjected to a compression force that acts against the first side member and drives the second side member against a surface of the vibratory screening machine.
1 more element
A screen assembly for a vibratory screening machine, comprising:
- a frame including a screen assembly mating surface and a plurality of flanges;
- and
- a screen supported by the frame,
- wherein the screen assembly is configured to form a predetermined concave shape when placed in the vibratory screening machine and subjected to a compression force by a compression assembly of the vibratory screening machine against at least one flange of the screen assembly, and
- wherein the screen assembly mating surface is configured to interface with a guide assembly mating surface on a guide assembly of the vibratory screening machine such that the screen assembly is guided into a fixed position on the vibratory screening machine.
2 more elements
Dependencies are inferred from the claim text.