PRODUCING LOOSE FIBER INSULATING MATERIAL

摘要

A cutting apparatus (30) for cutting fibrous material. In preferred form, the apparatus comprises a housing constructed to receive a continuous flow of fibrous material. At least one stationary cutting member (52) and a driven rotary shaft (70) are mounted within the housing (31). A plurality of cutting blades (90) are attached to the rotary shaft (70). Each rotary cutting blade has an arcuate leading edge (94) and an arcuate trailing edge that converge to form a cutting surface (98) and is constructed for attachment to the rotary shaft in abutting relationship with the other rotary cutting blades to form a continuous row of blades that extend along the shaft. As the shaft is rotated within the housing the fibrous material is severed between the rotary blades and the stationary cutting members.