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Screens for vibratory separators

  • US 6,510,947 B1
  • Filed: 10/11/2001
  • Issued: 01/28/2003
  • Est. Priority Date: 11/03/1999
  • Status: Expired due to Term
First Claim
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1. A screen assembly for use in a vibratory separator apparatus, the screen assembly comprisingat least two layers of screening material one on top of the other and including at least a first layer over a second layer, each layer having screen mesh with rectangular openings as viewed from above, the first layer having first rectangular openings, and the second layer having second rectangular openings, each of the first rectangular openings having a first width and a first length, and each of the second rectangular openings having a second width and a second length, the ratio of the first length to the first width ranging between 1.55 and 2.00, the ratio of the second length to the second width ranging between 1.55 and 2.00, and the ratio of the first length to the second width ranging between 0.95 and 1.05.

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