Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1995-03-31
1996-12-31
Kim, Christopher
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
422 69, 422 70, 422 7, 435 29, 436 55, 436 60, 436 73, 210681, 210 76, G05B 1300, G01N 3096, B21B 4502
Patent
active
055891381
ABSTRACT:
Metalworking fluids (MWFs) can be regenerated and stabilized by the controlled addition of a chelating agent. The resulting sequestration of the dissolved metals in the MWF has been found to reduce incidence of dermatitis, to control the growth of microbes including bacteria and fungi, and to reduce the generation of odors, all without the further addition of fresh (virgin) MWF or a conventional biocide. Apparatus useful for this control includes monitoring means for determining the presence of free metal ions in the MWF, testing means for determining the concentration of free metal ions if present, and addition means for adding, in a controlled manner, a chelating agent for sequestering the free metal ions.
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Bigler John C.
Kim Christopher
The Torrington Company
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