Fine jewelry diamond cut rope chain and method of manufacture thereof
AssigneeAvraham M. Rozenwasser
InventorDavid Rozenwasser
Life of this patent
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Abstract
A fine jewelry diamond cut rope chain comprising a double helix rope chain made from tightly interfitting links of precious metal link wire, each link having a small gap formed therein so as to enable one of said links to pass through the gap of another link, said links being intertwined to fit tightly one against another, at least some of the links of the chain having a shallow high luster diamond cut surface band extending on the outer surface of at least part of an outer perimeter of said link, the cross-section of the link wire being substantially of the same shape throughout.
Claims22
A fine diamond cut rope chain comprising a double helix rope chain made from tightly interfitting links of precious metal link wire, each link having a small gap formed therein so as to enable one of said links to pass through the gap of another link, said links being intertwined to fit tightly one against another, at least some of the links of the chain having a shallow high luster diamond cut surface band formed in at least part of a peripheral outer wall surface of said link, the cross-section of the link wire being substantially of the same shape throughout.
A chain link of precious metal for making jewelry rope chains comprising a shallow high luster diamond cut surface band formed in at least part of a peripheral outer wall surface of said link, the cross-section of said link being substantially of the same shape throughout.
A method for manufacturing chain links having shallow high luster diamond cut surface bands on their perimeters, said chain links having a cross-section substantially the same throughout comprising:
- a) shaving a precious metal plate with a high speed rotating diamond edge cutting tool to a depth of 0.001 to 0.04 mm to provide a high luster longitudinal band or strip,
- b) passing said plate together with a soft metal wire core through a die to make a precious metal plated wire having a high luster diamond cut band or strip along its outer length, and
- c) forming chain links from said precious metal plated wire containing a soft metal core.
A method for manufacturing chain links for making rope chains having high luster shallow diamond cut bands on at least a portion of their outer perimeter surface comprising contacting a precious metal wire with a high speed rotating diamond cutting edge providing relative motion between said wire and said cutting edge, to shave from the surface of said wire a shallow high luster surface band and subsequently forming said wire into chain links with said high luster surface band disposed on the outer circumference of said link.
Dependencies are inferred from the claim text.