Injection packer has elastic expandable ring element which is accommodated in backward extending conical chamber wall in chamber formed by pressure disk

摘要

Injection packer has a pressure pipe (11) and an external thread (12) in rear range whereby a rubber sleeve (2) pre-stressed by axial compression in a borehole and placed on the pressure pipe. The locking element is an elastic expandable ring element (5) which is accommodated in a backward extending conical chamber wall (42) in a chamber (41) formed by pressure disk (4).