Patent ID: 8783649

Claim:
A permanent end position sleeve valve having a central axis, the sleeve valve comprising: an inner sleeve concentrically disposed within an outer sleeve, wherein the outer sleeve comprising at least one opening extending radially therethrough; wherein the inner sleeve is configured to move relative to the outer sleeve between an open position in which the inner sleeve does not block the at least one opening in the outer sleeve, a closed position in which the inner sleeve blocks the at least one opening in the outer sleeve, and a locking position in which the inner sleeve blocks the at least one opening in the outer sleeve; wherein the closed position is between the open position and the locking position; wherein the inner sleeve or the outer sleeve comprises at least one plastically deformable locking area configured to plastically and permanently deform radially into a locking groove of the other of the inner sleeve or the outer sleeve when the inner sleeve is moved to the locking position.