Patent ID: 11938516
Assignee: DERRICK CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 25:
26. A system for screening material, comprising:
a vibratory screening machine that includes:
a frame;
a screen receiving bed movably attached to the frame and upon which one or more screen assemblies can be mounted;
a vibratory motor operatively coupled to the screen receiving bed and configured to cause the screen receiving bed to vibrate with respect to the frame; and
a first plurality of compression assemblies mounted on a first side of the screen receiving bed, wherein each compression assembly includes a compression piston that is configured to move between a retracted position and an extended position; and

a screen assembly for separating materials, the screen assembly being configured to be mounted on the screen receiving bed of the vibratory screening machine, wherein the screen assembly includes:
a support member having front and rear edges and first and second side edges, wherein a first plurality of apertures are provided along the first side edge, each of the first plurality of apertures including at least one compression surface configured engage with a compression piston of one of the compression assemblies to receive a compression force used to secure the screen assembly to the vibratory screening machine; and
a screening surface attached to a top surface of the support member.