<p>A dental apparatus provides a substantially uniform concentration of abrasive material entrained in a pressurized gas to a desired location substantially irrespective the amount of abrasive material in a pressurized container of the apparatus, and resists clogging by the abrasive material. The apparatus includes a control unit having a container that secures the abrasive material, the abrasive material in the container becoming entrained in pressurized gas received from a dental unit. The concentration of the mixture of entrained abrasive material in pressurized gas is maintained by upwardly directing the flow of the mixture in a first conduit against a cap, a portion of the entrained abrasive material returning to the container, with the regulated mixture of entrained abrasive material in pressurized gas being delivered through a hand piece to the desired location.</p>
申请公布号
WO2006044303(A2)
申请公布日期
2006.04.27
申请号
WO2005US36333
申请日期
2005.10.06
申请人
DENTSPLY INTERNATIONAL INC.;NESBITT, LANNY, EDWARD;VAN BARTO, MATTHEW;RILEY, PATRICK, EUGENE