Patent ID: 8127411

Claim:
A device for preventing jamming of a fibrous material subject to a compressive treatment in a stuffing chamber defined by a feed roll and a retard roll, comprising: a) an impact blade; and b) a stabilizing apparatus; wherein said impact blade is rigid; wherein said impact blade is interchangeable; wherein said stabilizing apparatus stabilizes said impact blade against moving away from the feed roll to prevent the jamming of the fibrous material between the feed roll and said impact blade during the compressive treatment of the fibrous material; wherein said impact blade is thin; wherein said impact blade is elongated; wherein said impact blade is generally flat; wherein said impact blade is interchangeable for fibrous material of different weights; wherein said impact blade has an upper extreme; wherein said impact blade has a lower extreme; wherein said impact blade has a pair of sides; wherein said impact blade has a pair of free ends; wherein said upper extreme of said impact blade has a pair of notches; and wherein each notch of said impact blade extends from a respective free end of said impact blade to a short distance inward therefrom.