The anchor shank comprises two sections, hinged together and provided with an elastically extensible shock cord secured at its ends to the two sections intermediate the ends thereof. The shock cord is short enough that the shank is bowed at its hinge, unless tensile stress on the shank straightens the shank and elastically extends the shock cord. The anchor preferably includes a single, replaceable fluke which is pinned at an angle to the shank during use, and which can be folded for storage. An...

A construction is provided for a mooring anchor to be used in securing large floating structures such as dry docks, cranes, large work platforms, and the like in a permanent or semi-permanent position. Further, in accordance with this invention, the anchor structure permits a modification of the fluke angle (the angle between the plane of the flukes and the plane of the shank) to the end that the anchor is suited for use in either a sand bottom or a mud bottom. It has been found that the best fl...

An anchor comprising a shank, two main flukes, an auxiliary fluke, the main and auxiliary flukes being pivotally connected to the lower end of the shank with the pivot axis at right angles to the shank, the main flukes being in the form of flat plates, the extension of which in one direction substantially coincides with the pivot axis, the auxiliary fluke extending substantially in a plane parallel to the pivot axis and at right angles to the main flukes, and an abutment member displaceable and ...

An anchor for ships and boats which upon lowering is partially embedded in the bottom of a body of water and is maintained in such position by the force applied by the water column bearing thereagainst.

An anchor which includes a tubular body, a top closure and a bottom closure secured to opposite ends of said tubular body, a plurality of drilling cutters mounted on the bottom closure, a neck having an external groove therein secured to the top closure, an opening in both the top and bottom closures, means for coacting with a drill string extending into said closures for sealing to maintain the interior of said body substantially free of water when submerged, a ratchet collar adaped to coact wi...

An anchor has a fluke with a longitudinal axis that extends from the rear end of the fluke to its front end. A connection member couples the fluke with the lower end of an anchor line. The connection member comprises an anchor shank and at least one coupling with two cooperating coupling members. The first coupling member is situated on the fluke side of the coupling and is directly or indirectly connected to the fluke in order to follow its movement. The second coupling member is situated on th...

An anchor rod for an attachment anchor including a trailing region (1) provided with a load application element (2), and an anchoring region (4) submergeable in a hardenable inorganic and/or organic mortar mass and having a mixing section formed of a head portion (5) provided at its free end (6) with a cutter (7) extending substantially transverse to the axis (A) of the anchor rod, a transporting section (10) adjoining the mixing section, and a compression section (13) adjoining the transporting...

An anchor tool and cooperating anchor positioner for use in a well bore are disclosed. The anchor tool may be employed as part of a well casing or liner, while the anchor positioner is part of a tool string run inside the casing or liner. The anchor positioner locates and anchors the tool string at a desired level in the well bore by engagement with the anchor tool placed at that location. Multiple anchor tools may be employed if it is desired to deploy the tool string at different levels. All o...

An anchor system designed to quickly anchor and release a boat in shallow water with minimal effort and little to no distraction from other activities such as fishing, which has an anchor sleeve containing a sleeve liner through which an anchor pole with a pointed bottom end passes through, said anchor pole extending below the hull of a boat into the lake or river bottom beneath, and which anchor pole can engage a locking insert when the anchor pole is twisted in either direction, said locking i...

An aesthetically pleasing anchor system designed to quickly anchor and release a boat in shallow water with minimal effort and little to no distraction from other activities such as fishing, which has an anchor sleeve containing a sleeve liner through which an anchor pole with a pointed bottom end passes through, said anchor pole extending below the hull of a boat into the lake or river bottom beneath, and which anchor pole can engage a locking insert when the anchor pole is twisted in either di...