Patent ID: 6935511

Claim:
A vibratory separator comprising a basket with a first side spaced-apart from a second side, screen assembly apparatus mounted in the basket, the screen assembly apparatus having a central portion, a first screen side and a second screen side, vibrating apparatus connected to the basket, central support apparatus connected to the basket and positioned beneath and in contact with the central portion of the screen assembly apparatus, pressing apparatus on the first side and second side of the basket for pressing down on the first screen side and on the second screen side of the screen assembly apparatus so that the central portion of the screen assembly apparatus is higher than the first screen side and the second screen side, wherein said pressing apparatus comprises inflatable bladder apparatus, wherein said screen assembly apparatus has a length and said central support apparatus has a length substantially equal to said length of said screen assembly apparatus, wherein said screen assembly apparatus includes a channel member beneath said central portion thereof, said channel member for receiving part of said central support apparatus, and wherein said screen assembly apparatus includes screen support apparatus for supporting screening material thereon, at least part of said central support apparatus contacting said screen support apparatus.