Jewelry – Gem setting – Multiple
Patent
1990-09-18
1991-12-17
Lindsey, Rodney M.
Jewelry
Gem setting
Multiple
63 32, 403361, A44C 1702
Patent
active
050726013
ABSTRACT:
A precious stone setting, preferably for invisibly mounted diamonds, is obtained by forming cutouts on opposed facets of square-shaped diamonds with a saw which is held at a downwardly pointed angle relative to the tables of the diamonds. Forming the cutouts in this manner produces in the pavilions of the diamonds, below their girdles, upwardly pointed biting edges, and clearances above these edges. The diamonds thus prepared are set in a setting comprising walls which extend parallel to one another and which are spaced apart by approximately the same distance as the sharp edges. This enables the diamonds to be forcefitted between the walls of the setting and the upwardly pointed edges to bite into the walls of the setting and secure the diamonds in place. Any attempt to retrieve the diamonds causes the biting edges to bite even deeper into the walls and more securely entrench the diamonds in place.
REFERENCES:
patent: 802267 (1905-10-01), Chaumet
patent: 1100252 (1914-06-01), O'Neill
patent: 2138340 (1938-11-01), Chemidlim
patent: 2141363 (1938-12-01), Rigollet
patent: 2304036 (1942-12-01), Tegarty
patent: 3964680 (1976-06-01), Arthur
patent: 4728238 (1988-03-01), Chisholm et al.
patent: 4738240 (1988-04-01), Aich
patent: 4800738 (1989-01-01), Bunz
patent: 4813246 (1989-03-01), Richards
Lindsey Rodney M.
Milano Michael J.
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