VIBRATING SCREENS AND SCREEN DECKS FOR USE IN NON-VERTICAL DISPOSITION IN MATERIAL SEPARATING MACHINES IN MINING AND MINERAL PROCESSING; SAID SCREENS AND SCREEN DECKS (1) BEING OF MULTI-APERTURED NON-WOVEN CONSTRUCTION AND (2) BEING MADE OF POLYURETHANE ELASTOMER AND (3) WHEN HAVING SQUARE APERTURES THEREIN THE APERTURE SIDES BEING NO LESS THAN 1/8", WHEN HAVING ROUND APERTURES THEREIN THE APERTURES BEING NO LESS THAN 1/8" IN DIAMETER, AND WHEN HAVING RECTANGULAR APERTURES THEREIN THE LONGER ...

VIBRATING SCREENS AND SCREEN DECKS FOR USE IN NON-VERTICAL DISPOSTION IN MATERIAL SEPARATING MACHINES IN MINING AND MINERAL PROCESSING; SAID SCREENS AND SCREEN DECKS (1) BEING OF MULTI-APERTURED NON-WOVEN CONSTRUCTION AND (2) BEING MADE OF POLYURETHANE ELASTOMER AND (3) WHEN HAVING SQUARE APERTURES THEREIN THE APERTURE SIDES BEING NO LESS THAN 1/8", WHEN HAVING ROUND APERTURES THEREIN THE APERTURE BEING NO LESS THAN 1/8" IN DIAMETER, AND WHEN HAVING RECTANGULAR APERTURES THEREIN THE LONGER DI...