(under subclass 15) Devices having at least one joint, the two parts of which are resiliently urged toward one another to cause the ring to assume a minimum diameter.
(1) Note. Included herein are rings with a split or open annulus to enable circumferential size adjustments by deformation within the elastic limit of the ring material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.1+, for contractible bracelets.
15.5, for rings wherein the circumferential size may be varied by deformation beyond the elastic limit of the ring material.