公开(公告)号：US5253464A

公开(公告)日：1993-10-19

申请号：US688639

申请日：1991-04-19

申请人： Bjarne Nilsen

发明人： Bjarne Nilsen

IPC分类号： B32B3/22 ,  E04F15/04 ,  E04F15/18 ,  E04F15/20 ,  E04F15/22 ,  E04B5/02

CPC分类号： E04F15/22

摘要： A resilient sports floor comprising a top layer, which is designed to be a coherent sheet consisting of boards. In each board recesses are provided in the shape of mutually parallel grooves along the entire length of the board, in which grooves strips of a springy resilient material, e.g. a natural or synthetic rubber material or a porous, springy plastic material, are inserted. The thickness of strips is larger than the depth of grooves, so that the strips project below the underside of layer with their lower portion. The floor is provided with the free surface of strips directly against a rigid sub-floor. In case of extremely high loads strips will be pressed into grooves, so that the strips are relieved due to the fact that the floor is in direct contact with the sub-floor with its underside.

公开(公告)号：US20050081893A1

公开(公告)日：2005-04-21

申请号：US10625995

申请日：2003-07-24

申请人： Bjarne Nilsen

发明人： Bjarne Nilsen

IPC分类号： B08B3/02 ,  G01N21/15 ,  G01N21/59 ,  B08B3/00

CPC分类号： G01N21/85 ,  B08B3/02 ,  B08B2203/005 ,  G01N21/15 ,  G01N21/59

摘要： A method of cleaning a light-transmissive and/or light reflective surface in contact with a fluid flow comprising particles extracted or generated in an oil extraction installation is described. The method comprises providing a source of flushing fluid comprising ozone, providing means for flushing the surface with the flushing fluid, and operating flushing means such that the surface is flushed with the flushing fluid. Apparatus for optically monitoring characteristics of such a fluid flow, the apparatus being adapted to take advantage of the aforementioned method, is also described.

摘要翻译： 描述了一种清洁与包括在抽油设备中提取或产生的颗粒的流体流接触的透光和/或光反射表面的方法。 该方法包括提供包括臭氧的冲洗流体源，提供用冲洗流体冲洗表面的装置，以及操作冲洗装置，使得表面用冲洗流体冲洗。 还描述了用于光学监测这种流体流的特性的装置，该装置适于利用上述方法。