20120192379 | BUSHING - A single, integral piece configured into a self-coupling bushing for pivotally securing within a circular opening of a structure without external fasteners, while accommodating a polygonal shaft. The bushing includes a base that is larger than the opening of the structure, and an aperture within the base. The aperture of the base of the bushing has a perimeter that includes first members for lining the opening of the structure, and pivotally securing the bushing within the opening, and second members for absorbing a rotational torque of the shaft, enabling the first members of the bushing to securely pivot within the opening of the structure. | 08-02-2012 |