Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1995-06-07
1997-01-14
Popovics, Robert
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210744, 210805, 210808, 210104, 210123, 210168, 210196, 210418, 2104165, 409137, 184 614, 1841032, 137399, 137563, 137565, 137572, 137907, B01D 3700, B01D 3600
Patent
active
055935966
ABSTRACT:
A system and method are disclosed for collecting cutting fluid and chips from a number of machine tools and includes a series of sumps each collecting chips and fluid at a particular machine tool, and a central sealed collection tank drawing from all of the sumps by drawpipes inserted in each sump. A single large capacity pump pumps to filtration equipment, with a predetermined vacuum level maintained in the tank by opening and closing an outlet valve between the pump and the filtration equipment. A level switch at each sump causes intermittent opening of an associated valve causing each sump to be placed in communication with the vacuum in the collection tank, and random opening of the valves causes individual sumps to be emptied by the full suction at the collection tank. The drawpipes are equipped with antivortex end shapes to allow rapid evacuation without drawing air into the system. A vacuum pump removes excess air accumulating in the collection tank.
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patent: 5380446 (1995-01-01), Bratten
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patent: 5466380 (1995-11-01), Bratten
Benefiel John R.
Popovics Robert
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