US 7,320,758 B2
Method for control of microorganisms in metalworking fluid
Pierre Jean Messier, Saint Sauveur (Canada); Joe Tanelli, Winooski, Vt. (US); Jean-Pierre St-Louis, Prevost (Canada); David Ohayon, Dollard-des-Ormeaux (Canada); and Gerald Bruno, Jr., St George, Vt. (US)
Assigned to Triosyn Holding, Inc., Williston, Vt. (US)
Filed on Jul. 30, 2004, as Appl. No. 10/903,410.
Claims priority of provisional application 60/491217, filed on Jul. 30, 2003.
Prior Publication US 2005/0025739 A1, Feb. 03, 2005
Int. Cl. B01D 37/00 (2006.01); C02F 1/50 (2006.01)
U.S. Cl. 210—668  [210/753; 210/764; 210/765] 22 Claims
OG exemplary drawing
 
1. A method of controlling the growth of microorganisms in a metalworking fluid, comprising passing said metalworking fluid through a filter containing a demand disinfectant, said demand disinfectant being an iodinated resin and iodine is released almost entirely on a demand-action basis, wherein said resin inhibits the growth of the microorganisms, and virtually no iodine bleeds into the metalworking fluid.