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.

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.

Abstract: A coupling assembly is disclosed having a female element with a conically shaped transition segment integrally formed between a mating segment and a central segment. As the mating segment of the male element is inserted into the female element, the conical transition segment serves to guide to the mating segment into an engaged position with the central segment of the female element.

Abstract: A valve assembly for use in the coupling of two members. The first member has an exterior surface and an interior surface. The interior surface defines a coupling sleeve and a valve sleeve. A fluid passageway is in communication between the coupling sleeve and the valve sleeve. A valve is positioned in the valve sleeve. The valve is biased toward the fluid passageway by a coiled spring. A valve pusher having a first end and a second end is positioned in the coupling sleeve and the fluid passageway. The assembly has a second member having an outer surface, an inner surface and a terminal portion. When the second member is inserted in the coupling sleeve, the terminal portion engages the first end of the valve pusher causing the second end of the pusher to engage the valve to unseat the valve to allow unrestricted fluid flow between the first member and the second member.

Abstract: A refrigeration system service coupling having a valved service adapter employing a spring biased sleeve valve to maintain the adapter valve in a closed no flow condition except when the service adapter is properly connected to a charging port of predetermined configuration and capable of retaining the service adapter sleeve valve to permit opening of the service adapter valve upon the service adapter being properly connected to the charging port.