Sifting screen

摘要

The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixture and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of ribs extending between opposing regions of the perimeter, the ribs defining an upper horizontal face to which a screen is to be attached, wherein at least one rib extends downwardly from the upper face at an angle off set to vertical, and to a shaker comprising at least one such screen frame.

主权项

1. A shaker comprising:
a screen frame having an outer perimeter wherein the outer perimeter has opposing regions and a plurality of ribs extending between the opposing regions of the perimeter, the plurality of ribs defining an upper horizontal face, wherein at least one rib has a first side and a second side extending downwardly from the upper horizontal face at an angle offset to vertical wherein the first side is parallel to the second side, and wherein the at least one angled rib is integrally formed with the screen frame and extends between the opposing regions of the perimeter, wherein the opposing regions are clamped in place in the shaker.