Patents Assigned to USS-POSCO
  • Process for purifying aqueous rinse solutions used in metal forming operations
    Patent number: 5501741
    Abstract: This is a procedure for purifying rinse solutions used in operations for the shaping of metal. In particular, it is a procedure for removing fatty acids from caustic wash solutions used to rinse metal parts containing various lubricants, particularly tallow lubricants.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: March 26, 1996
    Assignee: USS-POSCO
    Inventor: Kelly R. McMahon