Patent ID: 8882384

Claim:
A locking device, comprising: a substantially annular carrier including a plurality of apertures spaced around a periphery thereof; a plurality of roller elements, each roller element partially disposed in a corresponding aperture of the plurality of apertures; a substantially cylindrical body including a plurality of detents separated by ridges about a periphery thereof, the body at least partially received in the carrier such that the plurality of detents are in axial and radial alignment with the plurality of apertures; and a band spring encircling the carrier and the plurality of roller elements, wherein the plurality of detents is different in number than the plurality of roller elements and apertures, and wherein rotation of the body within the carrier in a first direction causes the plurality of roller elements to roll across the plurality of detents and ridges in such a way that, at any time during rotation of the body, some of the roller elements are in a fully extended position by engaging one of the plurality of ridges, and some of the roller elements are in a fully retracted position by engaging one of the plurality of detents, to thereby cause both elastic deformation of the band spring and rotation of the band spring in a second direction, opposite the first direction.