An anchor device is provided for securing a watercraft via an improved anchor. The anchor device may include a spine component, rotation members rotatable about the spine component, slats, and additional features. During operation, the anchor device advantageously provides increased contacting edges to grip an uneven anchoring surface, such as a rocky lakebed or river bottom. A method for securing a watercraft via an improved anchor using the anchor device is also provided.

An anchor assist device for use with a grappling anchor, the grappling anchor including a shank, a plurality of prongs extending outwardly from a lower end of the shank and an inner portion defined by the lower end of the shank and corresponding lower ends of each of the prongs. The anchor assist device including a plate section having a base end and an opposing ground-engaging end. The base end of the plate section is attached to the inner portion of the grappling anchor, such that the plate section is supported by one or more prongs of the grappling anchor, and the ground- engaging end of the plate section extends outwardly from the inner portion of the grappling anchor to provide increased anchor hold capacity within soft anchoring ground.

A common experience for boat owners is to lose anchors, particularly when anchored next to structure, wrecks, sunken debris, tree roots, rocks or other obstacles that are likely to become firmly engaged, holding the flukes of an anchor. Attempts to release the anchor by maneuvering the boat or by the manipulation of the anchor line often prove futile and succeed only in increasing the entanglement of the anchor. Ultimately it may lead to anchor loss or even loss of life of those on board the boat. This fluke style anchor mechanism design was invented by research and development through which the inventor created the Radial Arm Double Shank Split Crown Self-Releasing Mechanism Anchor providing a superior, safer, practical and economical solution to overcome the aforementioned problems of past art devices referenced herein or exhibited within this document shown in exhibits; Description of the Prior Art or Patent Citations and Searches.

A decoy anchor includes an integrally formed main body member having three fingers extending therefrom, generally in the shape of a W. The main body member preferably includes a pair of holes, which are used to receive an anchor line and set the depth of the anchor, as desired. The decoy anchor is preferably formed into the shape of a duck foot, wherein the fingers include knuckles along the fingers, and a claw at the end of each finger.

A deep-sea anchoring device for gravity and anchor composite with a decelerating wing includes an anchoring base, a decelerating wing and an anchor body. The anchoring base provides an anchoring force by its own gravity, heavy pressure and friction with a sea floor. The decelerating wing includes a main decelerating wing, and a secondary decelerating wing that increases the cross-sectional area for diversion, so that a resistance is produced by water flowing through the main and secondary decelerating wings to reduce the falling speed of the anchoring base to a safe range, and prevent the anchoring base from being damaged by its collision with the sea floor. The anchor body is pivoted to the bottom of the anchoring base and anchored by being shoveled into a sea floor mainly consisting of gravels or deposited soil or abutted against rough rocks of a sea floor mainly consisting of rocks.

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.

Disclosed is an anchor having a fluke, a shank that is connected to the fluke, and a coupling to attach the fluke to an anchor line or anchor chain, wherein the shank has two shank legs each having a straight shank plate with an outer surface that extend on the opposite sides of the plane of symmetry of the anchor and that diverge from the coupling towards the fluke, wherein the fluke has two straight penetration plates with a top surface on the opposite sides of the plane of symmetry of the anchor, wherein the orientation of the outer surfaces with respect to the top surfaces is specified by three angles under narrow ranges to provide excellent penetration properties and an excellent holding capacity.

Disclosed is an anchor having a fluke, a shank that is connected to the fluke, and a coupling to attach the fluke to an anchor line or anchor chain, wherein the shank has two shank legs each having a straight shank plate with an outer surface that extend on the opposite sides of the plane of symmetry of the anchor and that diverge from the coupling towards the fluke, wherein the fluke has two straight penetration plates with a top surface on the opposite sides of the plane of symmetry of the anchor, wherein the orientation of the outer surfaces with respect to the top surfaces is specified by three angles under narrow ranges to provide excellent penetration properties and an excellent holding capacity.

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.

A tension foundation is provided for holding a buoyant object in flowing water via a tether. The tension foundation may include a spine component, rotation members rotatable about the spine component, slats, and additional features. The rotation members can include multiple types with distinct dimension ratios, which may be arranged in an alternating pattern. During operation, the tension foundation advantageously provides increased contacting edges to grip an uneven surface, such as a rocky lakebed or river bottom.