Patent ID: 7913585

Claim:
An assembly for incrementally changing an axially fixable position, comprising: an annular gripping element having an outer edge with at least one radially aligned depression; and at least one deformation segment, said at least one radially aligned depression forming an edge of said at least one deformation segment, said gripping element in contact with a circumference of a pilot element and said at least one deformable segment circumferentially deformable responsive to a change in a diameter of said gripping element; a glide push ring axially displaceable along said pilot element and arranged to incrementally urge said gripping element in a first direction along said pilot element; and, a wedge push ring axially displaceable along said pilot element and wherein said gripping element is arranged to axially fix its position with respect to the pilot element, in response to a force applied by said wedge push ring in a second direction, opposite said first direction, along said pilot element; and, wherein said glide push ring and said wedge push ring are axially fixed with respect to each other.