Process and device for preventing malfunction of a dental evacuation system
US5188530A · kind A · utility
4Cited by
4References
14Claims
0Family size
Inventors
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/135
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To prevent, as far as possible, malfunction of a dental evacuation system, portions of a free-flowing additive are added at intervals to at least one constituent of the liquid-solids mixture. This is repeated several times during each period of operation of the evacuation system within the first evacuation section, which includes the separator (1). The additive added in portions may be, for example, a disinfectant, a cleaning agent and/or an anti-foam agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.