Vacuum-generating unit
US6416295B1 · kind B1 · utility
92Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F5/52
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A first passage communicating with a compressed air supply port, a sixth passage communicating with a vacuum port, and an eighth passage communicating with an air discharge port for a solenoid-operated valve are arranged in parallel respectively. Further, a pressure fluid-supplying solenoid-operated valve, a vacuum-breaking solenoid-operated valve, a flow rate-adjusting screw, a suction filter, and a vacuum pressure switch are successively arranged in series in a main body section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.