公开(公告)号：US5031469A

公开(公告)日：1991-07-16

申请号：US470740

申请日：1990-01-26

申请人： Robert E. Blackburn ,  Michael J. Blackburn ,  Sherry Blackburn ,  Lee A. Blackburn

发明人： Robert E. Blackburn ,  Michael J. Blackburn ,  Sherry Blackburn ,  Lee A. Blackburn

IPC分类号： G01N1/12

CPC分类号： G01N1/12

摘要： A fluid sampling device includes a tube, one end of which is adapted to be placed into a fluid medium. An actuator on the opposite end moves a rod along the longitudinal axis of the tube to bring a stopper into and out of sealing engagement with the fluid receiving end of the tube. With the fluid receiving end open, it is placed beneath the level of the fluid. The pressure of the fluid causes fluid to enter the tube to the level of the surrounding fluid. Then the stopper is closed, thus sealing the fluid sample within the tube, so that the sample may be removed. A stopper for sealing the upper end of the tube may also be provided, with the actuator moving both the upper and lower stoppers. The tube is formed of polypropylene extruded to 0.050 inches .+-.0.005 inches and the stopper is formed of neoprene coated with polytetrafluoroethylene.

摘要翻译： 流体采样装置包括管，其一端适于放置在流体介质中。 相对端上的致动器沿着管的纵向轴线移动杆以使止动器进入和离开与管的流体接收端的密封接合。 当流体接收端打开时，它被放置在流体的水平面之下。 流体的压力使流体进入管内至周围流体的水平。 然后塞子关闭，从而将流体样品密封在管内，使得样品可以被去除。 还可以设置用于密封管的上端的止动件，致动器移动上下止动件。 该管由聚丙烯挤出至0.050英寸+/- 0.005英寸，塞子由涂覆聚四氟乙烯的氯丁橡胶形成。