Patent ID: 7089634

Claim:
An interlocking pin system adapted to decorate duvets, apparel and upholstery comprising, in combination: a base disk of a first diameter and having a thin cylindrical configuration with a top face, a bottom face and a periphery there around, the top face having a concentric raised cylinder of a second diameter less than the first diameter and a coaxial coupling pin extending from the raised cylinder, the coupling pin of a third diameter less than the first diameter and second diameter and having a pointed tip, a first spacer bottom portion, a first notch, a second spacer portion, a second notch, a third spacer portion and a third notch; a spacer disk of a thin cylindrical configuration of a forth diameter similar to the first diameter and having a central aperture adapted to be received by the coupling pin of the base disk and lie adjacent to the raised cylinder of the base; a piece of material adapted to be pierced by the coupling pin of the base disk; a coupling housing of a generally cylindrical configuration with a convex upper member coupled to the periphery and with a planar lower surface with a central aperture, the coupling housing being adapted to house a releasable coupling mechanism comprising a male end and a female end being situated opposite each other and around the cental aperture and biased by a pair of springs, the male end and the female end each having a pair of inward flanges with apertures and an outward tab, the male and female ends having a resting state where the biasing springs force the apertures on the flanges to be displaced from each other and no longer lie in a central axis and a compressed state where the male end and female end brought within close proximity to each other by compressing the outward tab and aligning the apertures of inward flanges allowing the coupling pin to be inserted such that when coupling mechanism is released to its resting state the flanges will rest within the notches of the coupling pin; and a decorative convex dome adapted to couple to the upper member of the coupling housing.