公开(公告)号：US5695132A

公开(公告)日：1997-12-09

申请号：US583828

申请日：1996-01-11

申请人： Joseph F. Gorzka, Jr. ,  Scott M. Smith ,  Gene T. Tomasino

发明人： Joseph F. Gorzka, Jr. ,  Scott M. Smith ,  Gene T. Tomasino

IPC分类号： B02C19/06

CPC分类号： B02C19/06

摘要： A mill for grinding marking particles utilizing a source of a pressurized fluid is provided. The mill includes a grinding chamber having a peripheral wall, a base and a central axis. The mill also includes a nozzle associated with the peripheral wall of the grinding chamber. The nozzle defines an inlet of the nozzle. The inlet is connectable to the source of pressurized fluid. The pressurized fluid propels the marking particles about the periphery of the chamber. The mill further includes a plug cooperable with the nozzle. The plug is in engagement the nozzle when the pressure within the grinding chamber is substantially greater than the pressure at the inlet of the nozzle. The plug is spaced from the nozzle when the pressure within the grinding chamber is substantially less than the pressure at the inlet of the nozzle, so that when the source of pressurized fluid is connected to the inlet, the plug is spaced from the nozzle permitting the entry of the pressurized fluid into the chamber and so that when the source of pressurized fluid is disconnected from the inlet, the plug is engaged with the nozzle preventing marking particles from entering the nozzle and clogging the nozzle.

摘要翻译： 提供了一种用于使用加压流体源研磨标记颗粒的研磨机。 研磨机包括具有周壁，底座和中心轴的研磨室。 研磨机还包括与研磨室的周壁相关联的喷嘴。 喷嘴限定喷嘴的入口。 入口可连接到加压流体源。 加压流体围绕室的周边推动标记颗粒。 研磨机还包括与喷嘴配合的塞子。 当研磨室内的压力基本上大于喷嘴入口处的压力时，塞子与喷嘴接合。 当研磨室中的压力基本上小于喷嘴入口处的压力时，塞子与喷嘴间隔开，使得当加压流体源连接到入口时，塞子与喷嘴间隔开，允许 加压流体进入腔室，使得当加压流体源与入口断开时，塞子与喷嘴接合，防止标记颗粒进入喷嘴并堵塞喷嘴。