Geometric pyramid embodiment is formed with angle between base and side faces of 67 degrees and is set with tips facing downwards

摘要

The pyramid embodiment is formed with an angle between the base and side faces of 67 degrees. Only the edges of the pyramid need be embodiments. Independent claim describes method of screening rooms enclosed by pyramid against water seams whereby a number of pyramid embodiments are arranged in the room with their tips facing downwards. One embodiment could be provided in the four corners.