A tubular shank structure the anchor includes an elongate arm control member which moves lengthwise within a main body of the shank structure. Pivotally mounted arm members may be maintained collapsed along side the anchor shank structure or may be operatively held perpendicular to the shank structure by the arm control member. Upward positioning of the arm control member causes same to disengage the arm member ends to permit the arm members to rotate downwardly relative the shank structure so as to disengage an underwater obstruction. An anchor line is secured to the shank structure by a breakaway tie which, in case of anchor fouling, may be ruptured to permit positioning of the arm control member for anchor release.
A releasable anchor includes a generally "J" shaped fluke formed of a resilient material which has memory to return the fluke to a "J" shape after a biasing force has been applied thereto. Preferably, the fluke is formed of a strap of spring steel and has a weight affixed to the free end so as to direct the fluke's free end downwardly through the water. One or more flukes may be connected to form variations in anchor shape.
A retractable grappling hook generally comprising a shaft having a longitnal extending axis and a plurality of hooks pivotally attached to the shaft. Each hook has a longitudinally extending axis and is pivotal to a retracted position such that the axis of each hook is substantially parallel to the axis of the shaft and to an extended position such that the axis of each hook is angulated with respect to the axis of the shaft. The retractable grappling hook further comprises a hook control system on the shaft for configuring and locking the hooks in either the extended or retracted positions, and an attachment member attached to the shaft for attaching the grappling hook to other devices.
