Vacuum controller and filter assembly for dental vacuum system
US4963094A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-function control component for use in dental vacuum systems includes, within a single housing, a vacuum control device for controlling the vacuum intensity within the system; a first air filter device for cleaning air permitted to enter the system by the vacuum control device; a second air filter for filtering gases flowing from an associated separating tank to a vacuum pump; a moisture detection device mounted in the housing for shutting down the vacuum pump drive motor upon detection of a predetermined level of moisture in the housing; a vacuum intensity measuring device; and a sealing device for sealing off the separating tank from the vacuum pump. The vacuum pump is a rotary vane pump, and is operatively connected to dental aspirator tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.