Coolant reconditioning system
US5772871A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Oct 10, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reconditioning system which withdraws coolant from a machine tool sump, filters solids from the coolant, removes tramp oil from the coolant, kills bacteria in the coolant, and returns the reconditioned coolant to the machine tool sump. The reconditioning system includes a separator tank having a coolant inlet, a coolant outlet, and a coalescer pack located between the coolant inlet and the coolant outlet to separate tramp oil from the coolant. An ozone generator is connected to the separator tank for dissolving ozone into the coolant to kill bacteria, yeast and fungus. An in-sump pickup includes a flexible intake hose connected to the separator tank coolant inlet, a suction nozzle having a generally rigid tube attached near an angled or fluted inlet end of the intake hose, and a ring-shaped float encircling the rigid tube. A discharge hose connects the separator tank coolant outlet and the sump. A split diaphragm air pump withdraws coolant from the sump through the intake hose and forces coolant to the sump through the discharge hose. A skimmer assembly removes tramp oil from the surface of the coolant in the separator tank. The skimmer assembly includes a skimmer roll which rota…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.