Patent ID: 7067042
Filing Date: 2006-06-27
Classification: D21F

Abstract:
1. A twin wire former in a machine for the production of a fiber web, comprising: two revolving continuous wires including a top wire and a bottom wire, said top wire and said bottom wire converging to thereby form a stock inlet gap, said top wire and said bottom wire being proximate to each other over a substantially vertical segment, said top wire and said bottom wire having a direction of travel; a headbox from which a fiber stock suspension flows to said stock inlet gap; at least one forming unit, said top wire and said bottom wire being proximate thereto; at least one dewatering unit, said top wire and said bottom wire being proximate thereto, said at least one dewatering unit following said at least one forming unit in said direction of travel; a turning element proximate an upper portion of said vertical segment, said turning element having a peripheral area over which said two revolving continuous wires are turned, said turning element being substantially smooth; and at least one separation element following said turning element in said direction of travel, said at least one separation element separating said top wire from said bottom wire, said at least one separation element including a transfer suction box having at least three slots, each said slot width being less than approximately 20 mm.