An anchor has a fluke, a shank that is connected to the fluke, a coupling to attach the fluke to an anchor line or anchor chain, and an angle adjustment provision to adjust the angle between the shank and the fluke, wherein the angle adjustment provision is a hinge between the fluke and the shank, a first positioning member connected to the shank that is provided with a series of first positioning holes at a first intermediate distance and a second positioning member connected to the fluke that is provided with a series of second positioning holes at a second intermediate distance and spaced apart from the hinge axis, and a positioning pin that is inserted in one of the aligned first and second positioning holes, wherein the second intermediate distance differs from the first intermediate distance.

An apparatus includes an elongated, hollow member; a cap; and a pair of arms. The elongated, hollow member has a first closed end and a second open end, wherein the second open end includes a plurality of slots therein. The cap is configured for detachable attachment to the second open end. The pair of arms is configured to fit into the elongated, hollow member in a first configuration. The pair of arms is configured for insertion into the plurality of slots in a second configuration, wherein one of the pair of arms is oriented substantially orthogonally to the other of the pair of arms. A method of using an anchor includes inserting a pair of arms into the elongated, hollow member; and closing the second open end with a cap configured for detachable attachment to the second open end.

An apparatus includes an elongated, hollow member; a cap; and a pair of arms. The elongated, hollow member has a first closed end and a second open end, wherein the second open end includes a plurality of slots therein. The cap is configured for detachable attachment to the second open end. The pair of arms is configured to fit into the elongated, hollow member in a first configuration. The pair of arms is configured for insertion into the plurality of slots in a second configuration, wherein one of the pair of arms is oriented substantially orthogonally to the other of the pair of arms. A method of using an anchor includes inserting a pair of arms into the elongated, hollow member; and closing the second open end with a cap configured for detachable attachment to the second open end.

The present invention discloses a bionic high holding power anchor, which includes an anchor rod, a suspension clasp coupled with one end of the anchor rod and an anchor fluke hinged with the other end of the anchor rod, wherein a plurality of fluke heads arranged at equal intervals are extended from a front end of the anchor fluke, fin-like streamlined balance wings are arranged at two sides of the anchor fluke; the fluke head is in a shape of triangle-like taper containing a plane side wall and two curved side walls, the plane side wall is an isosceles triangle, the two curved side walls are smooth curved surfaces, and the two smooth curved surfaces are symmetrical around a normal plane of the plane side wall. According to the bionic high holding power anchor of the present invention, the balance wings are arranged at the two sides of the anchor fluke, a body is avoided from being turned completely and the anchor reaches to a soil layer at a correct working angle during a process that the anchor is thrown into water; and a longitudinal dimension of the anchor is increased, so that an anti-turning property of the anchor in the soil layer is improved significantly, and a risk of anchor dragging is reduced.

The present invention discloses a bionic high holding power anchor, which includes an anchor rod, a suspension clasp coupled with one end of the anchor rod and an anchor fluke hinged with the other end of the anchor rod, wherein a plurality of fluke heads arranged at equal intervals are extended from a front end of the anchor fluke, fin-like streamlined balance wings are arranged at two sides of the anchor fluke; the fluke head is in a shape of triangle-like taper containing a plane side wall and two curved side walls, the plane side wall is an isosceles triangle, the two curved side walls are smooth curved surfaces, and the two smooth curved surfaces are symmetrical around a normal plane of the plane side wall. According to the bionic high holding power anchor of the present invention, the balance wings are arranged at the two sides of the anchor fluke, a body is avoided from being turned completely and the anchor reaches to a soil layer at a correct working angle during a process that the anchor is thrown into water; and a longitudinal dimension of the anchor is increased, so that an anti-turning property of the anchor in the soil layer is improved significantly, and a risk of anchor dragging is reduced.

An apparatus includes an elongated, hollow member; a cap; and a pair of arms. The elongated, hollow member has a first closed end and a second open end, wherein the second open end includes a plurality of slots therein. The cap is configured for detachable attachment to the second open end. The pair of arms is configured to fit into the elongated, hollow member in a first configuration. The pair of arms is configured for insertion into the plurality of slots in a second configuration, wherein one of the pair of arms is oriented substantially orthogonally to the other of the pair of arms. A method of using an anchor includes inserting a pair of arms into the elongated, hollow member; and closing the second open end with a cap configured for detachable attachment to the second open end.

The self-installing anchor is configured for falling vertically through the water, embedding vertically into the soil, rotating and translating diagonally deeper through the soil in response to the anchor line load being transmitted to it, and achieving its maximum holding capacity with the anchor line acting normal to the fluke. In various implementations, a coupling mechanism at one end of the shank is engaged with a bearing surface at an entry end of the fluke to hold the shank close to the fluke while falling through the water and embedding vertically into the soil. The coupling mechanism provides eccentricity to the load applied and allows for the rotation of the anchor. The coupling mechanism is disengaged at a predetermined angle, liberating one end of the shank, and the point of application of the force on the anchor is modified to make it dive deeper into the soil.

A fluked burying device (1, 1A), for augmenting the burying and holding capability of a drag embedment marine anchor and chain cable system while being fixedly located thereon, comprises a fluke member (8) inclinedly attached to a body member (7) including pockets (12A, 12B, 12C) for accommodating links (16, 17) of a chain cable (4) passing there-through in a defined attitude such that axial and transverse loading is impressed in the chain cable (4) via separate links (17A, 17C) to maintain bending stresses therein similar to that occurring in a 5-pocket wildcat of a chain windlass and such that emergent links (16A, 16B) have sufficient articulation in service while embedded to permit the chain cable (4) to perform the function of and eliminate need for heavy expensive shackles. The fluked burying device (1, 1A) enables soil loading from a plurality thereof to be distributed along a length of chain cable (4) and is preferably provided with a body member (7) less wide than the effective footing width of a chain cable (4) and preferably split about a plane of symmetry (5) in two halves (2, 3) for ease of transport within container gauge.

A fluked burying device (1, 1A), for augmenting the burying and holding capability of a drag embedment marine anchor and chain cable system while being fixedly located thereon, comprises a fluke member (8) inclinedly attached to a body member (7) including pockets (12A, 12B, 12C) for accommodating links (16, 17) of a chain cable (4) passing there-through in a defined attitude such that axial and transverse loading is impressed in the chain cable (4) via separate links (17A, 17C) to maintain bending stresses therein similar to that occurring in a 5-pocket wildcat of a chain windlass and such that emergent links (16A, 16B) have sufficient articulation in service while embedded to permit the chain cable (4) to perform the function of and eliminate need for heavy expensive shackles. The fluked burying device (1, 1A) enables soil loading from a plurality thereof to be distributed along a length of chain cable (4) and is preferably provided with a body member (7) less wide than the effective footing width of a chain cable (4) and preferably split about a plane of symmetry (5) in two halves (2, 3) for ease of transport within container gauge.