Patents Assigned to Terra Technologies Inc.
  • Patent number: 6250575
    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.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Terra Technologies Inc.
    Inventor: David Wayne White
  • Patent number: 6029916
    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.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: February 29, 2000
    Assignee: Terra Technologies, Inc.
    Inventor: David Wayne White