Patent ID: 9061741
Filing Date: 2015-06-23
Classification: B63B,Y10T

Abstract:
1. An anchor positioning system, comprising: an anchor shackle for an anchor, the anchor shackle having a longitudinal axis; a chasing collar arranged to receive the anchor shackle in a locking position in which rotational movement of the anchor shackle around the longitudinal axis is inhibited, the chasing collar further being arranged to receive the anchor shackle in an unlocked position; and wherein the anchor shackle comprises a curved portion, extending in a direction parallel to the longitudinal axis with a substantially constant cross-section in a plane perpendicular to the longitudinal axis, the curved portion having a surface curved around the longitudinal axis for facilitating rotation of the anchor shackle around the longitudinal axis to the locking position, wherein the anchor shackle can rotate around the longitudinal axis from the unlocked position to the locking position with substantially no movement relative to the chasing collar along the longitudinal axis.