公开(公告)号：US20050000909A1

公开(公告)日：2005-01-06

申请号：US10875261

申请日：2004-06-24

申请人： Charles Landis ,  Danny Oaks ,  Ricky Rothermel ,  Robert Harvey ,  Steven Gray

发明人： Charles Landis ,  Danny Oaks ,  Ricky Rothermel ,  Robert Harvey ,  Steven Gray

IPC分类号： C02F1/50 ,  C02F1/52

CPC分类号： C02F1/505 ,  C02F1/5236 ,  C02F2101/105 ,  C02F2305/14 ,  Y10S210/906

摘要： Compositions including pellets of alum, a smectite mineral material and optionally sodium or calcium carbonate that can be delivered to a phosphate impoundment located at the bottom of a body of water at the bottom. The pellets of alum, smectite mineral material and optionally sodium or calcium carbonate are dropped through the body of water so that the alum is released when the pellet reaches the bottom of the impoundment thereby treating the phosphates.

公开(公告)号：US06247238B1

公开(公告)日：2001-06-19

申请号：US09292584

申请日：1999-04-15

申请人： Greg Harvey ,  Robert Harvey ,  Richard Harvey

发明人： Greg Harvey ,  Robert Harvey ,  Richard Harvey

IPC分类号： G01C1500

CPC分类号： G01C15/002

摘要： A laser marking device for marking a reference point with laser light so that accurate measurements can be made to that point. The laser marking device includes a support bar that has first and second ends and a longitudinal axis extending between the first and second ends. The first and second ends are adapted to slidably rest on the horizontal portions of an adjacent pair of T-bars of a suspended ceiling. An illuminating device emits a beam of light to illuminate a reference point. The illuminating device is slidably mounted to the support bar.

摘要翻译： 一种激光打标设备，用于用激光标记参考点，以便能够对该点进行精确的测量。 激光打标装置包括支撑杆，其具有第一和第二端以及在第一和第二端之间延伸的纵向轴线。 第一和第二端适于可滑动地搁置在悬挂天花板的相邻一对T形杆的水平部分上。 照明装置发射光束以照射参考点。 照明装置可滑动地安装到支撑杆上。