Device for the repeated injection of grout material in...

Details Device for the repeated injection of grout material in... Device for the repeated injection of grout material in...

F - Mech Eng,Light,Heat,Weapons

16

K

61/48, 137/60

F16K 15/14 (2006.01)

Patent

CA 1180632

ABSTRACT OF THE DISCLOSURE: A device for the repeated injection of liquids into a volume to be treated comprises piping in which is provided a valving construction that opens to the volume to be treated only when the pressure of the liquid in the piping exceeds a given value. In one embodiment the valving construction comprises a perforated tubular body surrounded by a sleeve of resiliently flexible material.

329621

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