Patent ID: 11890647
Assignee: DERRICK CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 11:
12. A screen assembly configured to be mounted on a receiving portion of a vibratory screening machine that includes a plurality of compression mechanisms, each of the compression mechanisms including a compression piston, the screen assembly comprising:
a support member having a front and a rear, first and second sides, a top surface, a bottom surface, a plurality of flow through apertures and a first plurality of mounting apertures located along the first side, each mounting aperture including:
at least one compression surface located on an inner side of the mounting aperture relative to a centerline of the support member, wherein the at least one compression surface is configured to contact a corresponding compression surface of a compression piston as the compression piston is advanced toward the centerline of the support member such a resultant compressive force applied to the at least one compression surface of the mounting aperture includes a first component that is oriented horizontally toward a centerline of the support member and a second component that is oriented vertically downward, and
an alignment slot configured to receive an alignment finger of a compression piston; and

a screening surface mounted on the top surface of the support member.