Patent ID: 6146500
Filing Date: 2000-11-14
Classification: D21F

Abstract:
A suction breast roll former comprising:a) a suction breast roll having a support surface with apertures formed therein that are operatively connected to a vacuum source;b) a headbox positioned in a close proximity to said suction breast roll and adapted to supply an aqueous suspension of papermaking fibers to said support surface, said headbox including a slice body and an apron that define a slice opening therebetween, said headbox further including a flexible roof extending from said slice opening and spaced from said support surface to define a forming zone therebetween, said headbox structured and arranged to permit said flexible roof to bend over a range of movement relative to said support surface in response to operating conditions; andc) a restraining member spaced from said flexible roof and positioned to limit the range of movement of said flexible roof.