Overhead return piping system
US6911142B2 · kind B2 · utility
7Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Nov 20, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/304088
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method for circulating coolant liquid between machine tools and a coolant filtering unit through an overhead return line. A small stream of clean coolant is diverted to a flush tank and the tank is pressurized, e.g., with compressed air. Periodic release of the pressurized liquid from the flush tank through the overhead return line flushes deposited chips and other sediments from the return line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.