Patent ID: 7666196

Claim:
A knot tying device for tying knots in a cord, comprising: a) an inner rod having an aperture sized and shaped to receive a cord; b) a hollow cylinder rotatably disposable on the inner rod, and having an interior sized and shaped to receive the inner rod therein, and an aperture extending from an outer surface of the hollow cylinder to the interior, the aperture being sized and shaped to receive the cord therethrough, and the outer surface configured to wind the cord thereon; and c) the inner rod being positionable in the interior of the hollow cylinder to selectively align and misalign the aperture in the inner rod with respect to the aperture in the hollow cylinder such that the cord extending through the aperture in the hollow cylinder to the aperture in the inner rod is clamped between the inner rod and the hollow cylinder when the aperture in the inner rod is misaligned with the aperture in the hollow cylinder a cord winding cylinder, rotatably disposable on the inner rod and hollow cylinder around the hollow cylinder; the inner rod is rotatably advanceable into the interior of the hollow cylinder; Wherein the inner rod includes an external thread and the hollow cylinder includes a mating internal thread such that as the inner rod is rotated the external thread engages the internal thread to advance the inner rod into the interior of the hollow cylinder.