Porous static pressure guide
US4793201A · kind A · utility
30Cited by
4References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Sep 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19995
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A static pressure lead screw includes a porous ceramic body having fluid flow paths as part of a flank. The porous ceramic body is fixed by a tubular base member through which the fluid does not flow. Fluid guide holes for supplying the fluid to the porous body extend through the tubular base member and are connected to the porous body. In a preferred embodiment, an electroless-plated layer is formed in a surface layer of the flank or an inner portion continuous with the surface layer, thereby obtaining various high-accuracy static pressure guides with high statical stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.