Classifying – separating – and assorting solids – Sifting – Elements
Reexamination Certificate
2008-01-08
2008-01-08
Rodriguez, Joseph (Department: 3653)
Classifying, separating, and assorting solids
Sifting
Elements
C209S403000
Reexamination Certificate
active
07316321
ABSTRACT:
A screen for use in a vibratory machine for separating particulate material from liquid material comprising a rigid rectangular support frame having flanges along all four edges to which screen cloths of the type described are bonded with the longer dimension of the rectangular openings defined by the warp and weft wires of the cloth parallel to the longer dimension of the frame. The frame includes an array orthogonal rigid interstices defining a plurality of similar sized rectangular openings or window and the cloths are also bonded to the interstices for the purpose of maintaining the length to width ratio of the openings in the cloths defined by the warp and weft wires thereof. The warp and weft wires of the cloths are tensioned before being bonded to the flanges and interstices.
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Hassall Caspar
Robertson Graham
Barnes & Thornburg LLP
Rodriguez Joseph
United Wire Limited
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