E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/52
E21B 41/00 (2006.01)
Patent
CA 2015576
ABSTRACT The cylindrical tiles used to line dug water wells are normally capped with a circular concrete slab having a square access hole which is closed with a square concrete plug. Such a structure is not attractive and is not impervious to dirt and water - in fact they may freely enter. In this invention, a plastic or metal cover is added to the structure described above. It keeps out foreign material while rendering the well more attractive. A foam slab is included to provide uniform support and clearance over protruding handles.
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