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US 5,855,181 AGranted
Fixed shank plow anchor
OwnerSefton M.D. Oxfordinventor
Life of this patent
Estimating the term…
Abstract
A fixed shank plow anchor includes a weighted nose having a spike incorporated into it to enhance deployment of the anchor on the sea bed. The center of gravity of the anchor is situated within the shank so that when the anchor drops onto a sea bed, and force is applied to the end of the shank in a forward direction, an overturning moment is created facilitating digging of the nose of the anchor into the sea bed. The anchor is self-launching.
Claims9
An improved anchor, comprising:
- a) a shank having a forward termination connectable to an anchor rode and a rearward termination fixedly connected to a double-bladed ploughshare-type fluke;
- b) said shank having a straight forward section connected to a connecting section via a curved section, said connecting section including said rearward termination;
- c) said fluke having a forward pointed end with a top edge and rear surfaces extending in a rearward direction therefrom and diverging laterally in said rearward direction and then converging in the rearward direction with respect to a centerline of said fluke, said rear surfaces defining a rearward extent of said anchor, said fluke having a flat bottom surface extending rearward from said forward pointed end and devoid of any downwardly extending projections;
- d) a fin extending upwardly adjacent said forward pointed end, said fin extending upwardly from a lower terminus at said top edge of said forward pointed end;
- and
- e) a center of gravity of said anchor being located within said connecting section of said shank.
3 more elements
An improved anchor, comprising:
- a) a shank having a forward termination connectable to an anchor rode and a rearward termination fixedly connected to a fluke;
- b) said fluke having a forward pointed end with a top edge and a flat bottom surface;
- c) a fin extending solely upwardly adjacent said forward pointed end from a lower terminus at said top edge;
- and
- d) said anchor having a center of gravity within said shank.
2 more elements
Dependencies are inferred from the claim text.