Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1998-01-16
2000-02-29
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 29, B02C 1912
Patent
active
060299169
ABSTRACT:
A system and method for reclaiming backing material from waste carpet or other products includes a chopper capable of handling large pieces of waste carpet, at least two grinding or granulation steps to reduce the size of the waste carpet pieces and to dislodge carpet fibers from the remaining material, and at least three separation steps to remove the dislodged fibers; one of the separation steps involves vibratory screening. Backing material reclaimed in this manner has a relatively low contamination level, and is suitable for reuse as carpet backing with little need for the addition of virgin backing material. The system and method further provide for the extrusion of the reclaimed backing material for use as new carpet backing.
REFERENCES:
patent: 5497949 (1996-03-01), Sharer
patent: 5518188 (1996-05-01), Sharer
patent: 5535945 (1996-07-01), Sferrazza et al.
patent: 5722603 (1998-03-01), Costello et al.
Rosenbaum Mark
Terra Technologies Inc.
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