Process for manufacturing a stator for vacuum pump and stator obtained thereby
US7134835B2 · kind B2 · utility
1Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jan 15, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D19/046
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing stators of vacuum pumps, and stators obtained thereby, wherein a plurality of stator discs or rings are formed, preferably by pressing, and then stator discs or rings are coaxially stacked and mutually rotated so as to form a stator surface having defined thereon at least one groove extending in substantially axial direction with respect to a body of the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.