Dental handpiece purging device
AssigneeDental Components LLC
InventorsJohn C. Wiltrout, Nora M. Wiltrout
Life of this patent
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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.
Claims6
A device for purging dental handpieces of the type having communicating air inlet and air outlet passageways, said device comprising,
- a housing including wall members,
- a receptacle,
- a purge valve assembly carried by said housing for communication with a source of pressurized air and including a connector for engagement with one end of a handpiece, said connector defining an air outlet for pressurized air and a pressurized air inlet for respective communication with the inlet and the outlet passageways of the handpiece, a valve member controlling a pressurized air flow from said source to said outlet of said connector for purging the handpiece passageways, biasing means urging said valve member toward a closed position,
- said connector in downstream communication with said receptacle via a conduit for delivery of matter purged from the handpiece.
A device for purging dental handpieces of the type having a turbine and communicating turbine drive air inlet and turbine drive air outlet passageways, said device comprising,
- a housing including wall members, and
- a purge valve assembly carried by said housing for communication with a source of pressurized air and including a connector for engagement with one end of a handpiece, said connector defining an air outlet for pressurized air and a pressurized air inlet for respective communication with the turbine drive air inlet and the turbine drive air outlet passageways of the handpiece, a valve member in said housing controlling a pressurized air flow from said source to said outlet of said connector for purging the turbine and the handpiece passageways, biasing means urging said valve member toward a closed position, said connector in rested engagement with said valve member.
Dependencies are inferred from the claim text.