Marine anchor
AssigneeKingston Anchors Limited
InventorEdward R Petersen
Life of this patent
Estimating the term…
Abstract
A marine anchor having a shank connectible to an anchor rode at one end and having a double ploughshare fluke rigidly mounted at the other end thereof is described. The fluke consists of two symmetrically mounted part-cylindrical blades disposed on each side of a central ridge in the medial plane of the shank and extending from a forward apex to divergent trailing ends. A ballast weight is mounted under the convex surfaces of the blades and contained within the tangential plane to the convex surfaces. Each blade is also provided with a fin along the outer edge thereof, perpendicular to the central edge and located aft of the junction of the shank and the fluke.
Claims7
A marine anchor of the type that buries in the seabed when a longitudinal pull is applied, comprising a longitudinal shank having a proximal end connectible to an anchor rode, and a distal end having a double-bladed ploughshare fluke rigidly mounted thereon;
- and wherein:
- d) said shank has a forward edge consisting of a straight section that is tangential to a curved section that terminates at the fluke;
- e) said fluke comprises a pair of symmetrically mounted blades, each having partially cylindrical convex and concave surfaces, with a pointed end forward and a divergent rearward section, rigidly connected to each other along a central ridge and symmetrical about a longitudinal medial plane, and wherein the longitudinal axis of each said partial cylindrical surface lies parallel to the central ridge, and the forward edge of the fluke lies on the intersection of the cylindrical surfaces of the blades and a horizontal plane when in an upright position;
- and
- f) each said blade of the fluke includes, along an outer edge thereof, a fin in a plane perpendicular to said longitudinal medial plane of the central ridge, spaced laterally from the aft end of the central ridge.
Dependencies are inferred from the claim text.