According to the US Patent and Trademark Office: “The cable grab consists of a hollow cylindrical chuck, a tapered socket and a pair of bifurcated arms attached to the sides. A collet is disposed within the tapered socket that includes a bore within, having an inside diameter compatible with a wire rope cable.”

An abstract of the invention, released by the Patent Office, said: “A hollow chuck cap is attached to the chuck with a compression spring disposed within the chuck between the collet and the chuck cap, which urges the collet into the tapered socket.”

It added: “The grab functions such that after a cable has been inserted into the chuck first end and is manually cinched tightly, the collet firmly grips a wire rope cable on the bore in the collet when a cable is pulled in an opposite direction. A hollow bolt is attached to the chuck and when rotated inward against the collet, the collet is forced away from the tapered socket, thus releasing the grip for de-tensioning or removal of the cable grab from the wire rope cable.”

The inventor was issued US Patent Number 7,007,350.