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US 5,329,789 AGranted
Jewelry with tubular appearance
AssigneeAlmond Jewelers Inc.
InventorJonathan Mandelbaum
Life of this patent
Estimating the term…
Abstract
A piece of jewelry comprises one or more half-tubular members which have a main curvature lying in the primary plane of the jewelry. The half-tubular member has an outer, highly polished concave surface and an inner, highly polished convex surface where both surfaces lie or extend in the primary plane. This produces the illusion that the half-tubular members are in fact fully tubular and thus, produces jewelry that has a heavier look and impression even though it is made with half the precious metal.
Claims16
A piece of jewelry with a tubular appearance extending outwardly from a primary plane, comprising:
- at least one half-tubular member having a half-tubular shape, the member having an outer polished convex surface and an inner polished concave surface, the convex and concave surfaces curving first away from and then toward the primary plane to form said half-tubular shape, and wherein the half-tubular member has a main curvature in the primary plane, the half-tubular member having a width which is small compared to a circumferential length of the half-tubular member along the main curvature, whereby even at acute angles to the primary plane, the half-tubular member appears to be a fully tubular member.
Dependencies are inferred from the claim text.