VIBRATION SCREEN Russian patent published in 1997 - IPC

FIELD: oil and gas industry. SUBSTANCE: vibration screen has top and bottom grids arranged one above the other and supporting grid whose openings are formed by cross-pieces that are supporting members for the grids connected to each other and cross- pieces of the grid through elastomeric durable material. On the outer side of each grid, in accordance with the shape and position of the cross-pieces of the supporting grid, are top and bottom projections made of elastomeric material. The edges of the cross-pieces of the supporting grid point upward to the bottom grid to form an U-shaped section in cross-section. The grids are mounted with a spaced relation to the cross-pieces. The space between the bottom grid and cross-pieces is filled with elastomeric material of bottom projections. EFFECT: enhanced efficiency. 6 cl, 9 dwg