Cross-sectional shapes for hollow link chain
AssigneeAvraham Moshe Rosenwasser
InventorsDavid Rosenwasser, Avraham Moshe Rosenwasser
Life of this patent
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Abstract
A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
Claims14
A method of forming a rope chain comprising the steps of:
- providing a chain link of hollow construction having an inner portion and a cross-section that is non-annular and symmetric along a centerline plane,
- said cross-section further comprising a plurality of sides, on each side of the centerline plane at least two of said sides of said cross-section of which meet at a point of inflection, and wherein said cross-section has a substantially uniform thickness throughout,
- said cross-section further comprising an exterior section opposite the inner portion,
- intertwining said chain link with other chain links to form a rope chain, and
- deforming said exterior section of at least some of said intertwined chain links such that said deforming does not result in the loss of any link material.
A chain link of hollow construction for interviewing with other chain links to form a jewelry chain, said chain link having a non-annular cross-section that is symmetric along a centerline plane, said cross-section further comprising;
- a seam portion,
- a substantially uniform tuckness throughout, and
- a plurality of sides,
- wherein at least two of said sides of said cross-section meet at a point of injection,
- wherein said point of inflection occurs along the centerline plane,
- wherein on each side of the centerline plane there we at least three distinct sides, and
- wherein said seam portion lies on said centerline.
Dependencies are inferred from the claim text.