Dental handpiece purging device
US5282745A · kind A · utility
127Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A housing of the device receives a pressurized air flow which is filtered and directed past a pressure reducing valve prior to delivery to a purge valve assembly. The purge valve assembly includes a connector configured for endwise engagement with the specific handpiece being purged. The connector is removably mounted in the purge valve assembly which also includes a valve member displaced by the connector during a purging operation from a spring biased closed position. Various connectors are interchangeable to adapt the device to service a variety of dental handpieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.