Back to results
US 6,148,758 AGranted
Boat anchor
AssigneeElectromechanical Research Laboratories, Inc.
InventorLarry C. Wilkins
Life of this patent
Estimating the term…
Abstract
An anchor for a marine vessel has a shank pivotally connected to a fluke allowing pivotal movement therebetween about a pivot axis within a range of motion. The anchor also has a pivot control member engageable between the shank and the fluke to regulate the pivotal movement throughout at least a portion of the range of motion. The pivot control member is elastically deformed as the shank is pivoted relative to the fluke. The anchor has an operational position in which the point of connection of an anchor line to the shank is positioned below a horizontal plane containing the pivot axis.
Claims42
An anchor for a marine vessel for anchoring to the bottom of a body of water, comprising:
- a fluke portion;
- a shank portion pivotally connected to said fluke portion to allow pivotal movement therebetween about a pivot axis;
- and
- a pivot control member engageable between said fluke portion and said shank portion to regulate said pivotal movement throughout a range of motion during penetration of said fluke portion into the bottom.
1 more element
An anchor for a marine vessel for anchoring to the bottom of a body of water, comprising:
- a shank portion;
- a fluke portion;
- a pin defining a pivot axis, said pin pivotally connecting said shank portion to said fluke portion;
- a pivot restraint defined by said fluke portion and said shank portion to operably limit pivotal movement therebetween within a range of motion;
- and
- a biasing member engageable between said fluke portion and said shank portion to provide a force for controlling said pivotal movement throughout at least a portion of said range of motion during penetration of said fluke portion into the bottom.
3 more elements
An anchor for a marine vessel, comprising:
- a shank portion;
- a fluke portion;
- a pin defining a pivot axis, said pin pivotally connecting said shank portion to said fluke portion;
- a pivot restraint, comprising;
- a slot defined in one of said fluke and shank portions;
- an engaging member operably connected to a corresponding one of said fluke and shank portions and received in said slot;
- said engaging member adjustably positioned along a length of said slot as said shank portion is pivoted about said pivot axis relative to said fluke portion;
- and
- said slot having a first end and an opposite second end which operably limit pivotal movement of said shank portion relative to said fluke portion within a range of motion;
- and
- a biasing member engageable between said fluke portion and said shank portion to provide a force for controlling said pivotal movement throughout at least a portion of said range of motion.
8 more elements
An anchor for a marine vessel for anchoring to the bottom of a body of water, comprising:
- a fluke portion;
- a shank portion;
- means for pivotally connecting said fluke portion to said shank portion to allow pivotal movement therebetween;
- and
- means for regulating said pivotal movement throughout a range of motion during penetration of said fluke portion into the bottom.
2 more elements
An anchor for a marine vessel, comprising:
- a shank portion;
- a fluke portion;
- an arm portion fixed to said fluke portion at a locus of fixation;
- a connector fastening said shank portion to said arm portion for pivotal movement of said shank portion relative to said fluke portion about a pivot axis;
- a pivot restraint adapted to allow said shank portion to freely pivot relative to said fluke portion within a predetermined range of motion;
- and
- wherein the anchor defines a vertical plane containing said pivot axis, said pivot axis lying in a plane substantially perpendicular to said vertical plane.
4 more elements
An anchor for a marine vessel and comprising:
- a shank portion;
- a fluke portion;
- an arm portion fixed to the fluke portion at a locus of fixation;
- a connector fastening the shank portion to the arm portion for pivotal movement of the shank portion relative to the fluke portion about a pivot axis;
- a pivot restraint adapted to allow the shank portion to freely pivot relative to the fluke portion within a predetermined range of motion;
- and
- wherein the fluke portion has a plane of symmetry the pivot axis being perpendicular to the plane of symmetry.
4 more elements
An anchor for a marine vessel and comprising:
- a shank portion;
- a fluke portion and wherein:
- the fluke portion has two top panels having joined upper edges defining a top margin of the fluke portion;
- and
- the fluke portion has wings extending outward from lower edges of the top panels;
- and
- an arm portion is fixed to the fluke portion at a locus of fixation and is pivotally connected to the shank portion for pivotal movement of the shank portion relative to the fluke portion;
- and
- a pivot restraint adapted to allow the shank portion to freely pivot relative to the fluke portion within a predetermined range of motion.
6 more elements
An anchor for a marine vessel comprising:
- a shank portion;
- a fluke portion connected to the shank portion and wherein:
- the fluke portion has two generally triangular top panels having joined upper edges defining a top margin of the fluke portion;
- and
- the fluke portion has generally coplanar wings extending outward from lower edges of the top panels;
- and
- the fluke portion has a bottom wall extending inward from the lower edge of each of the top panels toward the lower edge of the other top panel;
- and
- the fluke portion has a cavity therein defined by the top panels and bottom wall;
- and
- the bottom wall is a plate which extends outboard of the lower edge of each of the top panels to provide the wings.
8 more elements
An anchor for a marine vessel and comprising:
- a shank portion;
- a fluke portion;
- an arm portion fixed to the fluke portion at a locus of fixation;
- a connector fastening the shank portion to the arm portion for pivotal movement of the shank portion relative to the fluke portion about a pivot axis;
- and
- a pivot restraint adapted to allow the shank portion to freely pivot relative to the fluke portion within a predetermined range of motion, the pivot restraint includes:
- a first thru-hole in the shank portion;
- a second thru-hole in the arm portion and aligned with the first thru-hole, one of the first and second thru-holes being an elongated slot;
- and
- a second connector received through the first and second thru-holes.
7 more elements
An anchor for a marine vessel and comprising:
- a shank portion;
- a fluke portion;
- an arm portion fixed to the fluke portion at a locus of fixation;
- a connector fastening the shank portion to the arm portion for pivotal movement of the shank portion relative to the fluke portion about a pivot axis;
- and
- a pivot restraint adapted to allow the shank portion to freely pivot relative to the fluke portion within a predetermined range of motion between 10 degrees and 25 degrees.
3 more elements
Dependencies are inferred from the claim text.