Plug for pier hole

Details Plug for pier hole Plug for pier hole

E - Fixed Constructions

02

D

61/80

E02D 5/00 (2006.01) E21B 33/127 (2006.01)

Patent

CA 2006760

An inflatable, stretchable plug for obstructing a hole drilled in the ground for a foundation pier comprises a sturdy elastic envelope having an air valve mounted in the wall thereof for connection with outside supply of pressurised air and a handle bonded to upper portion of the envelope for easy removal of the plug from the hole before concrete mixture is poured in to produce the pier.

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