Patent ID: 6955515

Claim:
A locking pin comprising: a sleeve, the sleeve having: a base, the base having: a mating side, the mating side having: a castled perimeter, the castled perimeter having: a retention groove in an interior surface of the castled perimeter, a first rotation limiting channel or pin, and a first locked indicator on a top surface of the castled perimeter, a projection side opposite the mating side, the projection side having: an anti-rotation protrusion, wherein the anti-rotation protrusion is mated into a keyed opening in a first planar mount to prevent rotation of the sleeve, and a cam opening through a central portion of the base, an expandable projection coupled perpendicular to the projection side of the base, the expandable projection having: a cylindrical portion coupled to the projection side of the base, a conical portion, the conical portion having a first end that is coupled to the cylindrical portion, an expandable opening traversing across the expandable projection to define an expandable projection interior surface, the expandable projection interior surface having: a cam retaining bulge; and a bullet nose coupled to a second end of the conical portion; and a locking cam unit, the locking cam unit having: a thumb grip, a cam unit disk coupled to the thumb grip, the cam unit disk having: a first side coupled to the thumb grip, the first side having: a second locked indicator, a retention lip, wherein the locking cam unit fits inside the cam opening of the sleeve, such that the retention lip mates into the retention groove to secure the locking cam unit inside the sleeve while allowing the locking cam unit to freely rotate, and a second side, the second side having: a second rotation limiting channel or pin, wherein the first rotation limiting channel or pin and the second rotation limiting channel or pin mate a pin into a channel to limit a rotation of the cam unit disk, and a locking cam coupled to the cam unit disk, the locking cam having: an elliptical shape having a width and two ends, and a concave indentation in each of the two ends, wherein the width of the elliptical shape is sufficient to press and lock against one of the concave indentations against the cam retaining bulge, thus causing the expandable projection to expand outward and to prevent the locking cam unit from rotating.