Nozzle device for purging a vacuum pump
US6155502A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C25/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nozzle device for purging a vacuum pump includes a nozzle, the top portion of the nozzle is a tapered portion, two sides of the tapered portion are installed with nozzle holes for guiding the exhausted air sub-flow to be exhausted from the two sides of vent end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.