Patent ID: 11958077
Assignee: DERRICK CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 14:
15. A method of screening materials with a vibratory screening machine, comprising:
placing a screening assembly on a screen receiving portion of a vibratory screening machine that includes a first plurality of compression pistons located along a first side of the screen receiving portion and a second plurality of compression pistons located along a second side of the screen receiving portion, where the screening assembly comprises a support member and a screening surface mounted on the support member, the support member including front and rear edges and first and second side edges, a first plurality of mounting apertures being located on the first side edge and a second plurality of mounting apertures being located on the second side edge;
causing the first plurality of compression pistons to move inward towards a centerline of the support member such that each of the first plurality of compression pistons applies a compressive force to a corresponding one of the first plurality of mounting apertures and such that each of the second plurality of compression pistons applies a compressive force to a corresponding one of the second mounting apertures, wherein the compressive forces applied to the first and second plurality of mounting apertures press the screening assembly into engagement with the screen receiving portion of the vibratory screening machine;
depositing material to be screened on a top surface of the screening assembly; and
causing the screening assembly to vibrate such that fluids and small particles within the material to be screened pass through the screening assembly and such that larger particles that cannot pass through the screening assembly move along the top surface of the screening assembly and ultimately travel off a rear of the screening assembly.