US 6,616,835 B2Granted

Coolant recycling system

OwnerJon A. Jenseninventor

Life of this patent

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Abstract

A coolant recycling system for efficiently recycling contaminated machine tool coolant thereby extending the useful life of the coolant. The coolant recycling system includes a support frame, a first tank for receiving contaminated coolant, a second tank for receiving a volume of water and coolant concentrate, and a third tank for treating and cleaning the contaminated coolant. A skimmer apparatus is positioned within the third tank for removing the upper level of contaminants from the coolant for filtering separately from the significant volume of coolant within the third tank. An ozone applicator applies a specific volume of ozone to the coolant during the mixing of the coolant within the third tank which kills mold, yeast, fungus and bacteria while also changing the physical state of dissolved solids for increasing the ability to remove the contaminants from the coolant and micro air bubbles float contaminants to the surface to be skimmed.

Claims16

Dependent claims

A coolant recycling system, comprising:

a receiving tank for receiving a volume of contaminated coolant;
a cleaning tank fluidly connected to said receiving tank for mixing said contaminated coolant with a volume of coolant concentrate;
an ozone applicator positioned within said cleaning tank for applying a volume of ozone within said contaminated coolant;
a means for circulating said contaminated coolant within said cleaning tank;
a skimmer apparatus for removing an upper portion of said contaminated coolant wherein said skimmer apparatus is comprised of:
a reservoir positioned adjacent said cleaning tank and having a filtration means disposed therein and a pump means disposed thereon said reservoir having an upper portion and a lower portion wherein said reservoir is fluidly connected to said cleaning tank by a first hose attached to said reservoir lower portion for returning cleaned coolant to said cleaning tank;
a ring member positioned within said cleaning tank and floating upon an upper surface of said contaminated coolant said ring member being fluidly connected to said reservoir by a second hose attached to said reservoir upper portion;
a plurality of openings within said ring member for drawing said upper portion of said contaminated coolant into said ring member and said second hose;
and
a plurality of buoys attached to said ring member for supporting said ring member upon said upper surface of said contaminated coolant.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/962,513Filed 24 Sep 2001
Published: US 2003/0057145 A127 Mar 2003
Granted: 9 Sep 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B24B 55/03
Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant: designed as a complete equipment for feeding or clarifying coolant
B01D 29/117
With bag, cage, hose, tube, sleeve or like filtering elements: arranged for outward flow filtration
B01D 29/58
In series connection: arranged concentrically or coaxially
B01D 29/605
Integrally combined with devices for controlling the filtration: by level measuring