Method of liquid withdrawal from a tool spindle
US7155825B2 · kind B2 · utility
3Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Mar 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/303976
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for withdrawing liquid from the liquid bearings of a spindle (1) carried in liquid bearings (3, 5) distinguished in that with the help of pressurized gas, the liquid, together with the gas, is forced to exit the spindle during the operation of the spindle via at least one first channel (12), and that when the spindle is shut down, is forced to exit via at least one second channel (13) with a smaller flow-through cross-section than the first channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.