Separator for vacuum pump loading system
US5034038A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | May 14, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D47/021
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A separator for a vacuum loading system is located in a flow path of an air/particulate mixture between a loading system and a vacuum pump, the vacuum pump drawing the air/particulate mixture from the loading system through a liquid chamber to trap particulate matter in a liquid while the air in the air/particulate mixture is drawn through the liquid and into an air chamber for return to the vacuum pump. The separator also includes a level detection device within the reservoir for detecting a predetermined level of the liquid in the reservoir and outputting an inlet signal when the actual liquid level is less than the predetermined level; a drain valve in the liquid chamber of the reservoir for selectively draining the liquid filter from the reservoir; an inlet operatively communicating with the level detecting device for introducing the liquid into the reservoir in response to detection of the inlet signal; and a vacuum cutoff operatively communicating with the level detection device for disabling the vacuum pump in response to detection of the inlet signal. A control periodically opens the drain valve for a predetermined time period to drain the liquid from the reservoir. The dra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.