Method for securing gemstones in an effectively invisible...

Details Method for securing gemstones in an effectively invisible... Method for securing gemstones in an effectively invisible...

2007-04-03

2007-04-03

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S045000, C164S516000

Reexamination Certificate

active

10812126

ABSTRACT:
The invention relates to a method for producing an effectively invisible gemstone setting by casting a wax model of the setting and inserting a flange or post between the stones and into the floor of the setting, or into a depression or aperture on the floor of the setting, in order to secure the stones placed in the wax model of the setting. The flange is shaped so that the majority of its body is hidden beneath the gemstones and so that a narrowed portion of the flange engages the sides or girdles of the gemstones. The upper portion of the flange has sloped sides and may reflect light to and from the crown of the gemstones mounted in the setting.

REFERENCES:
patent: 4819453 (1989-04-01), McNamara
patent: 5218839 (1993-06-01), Udko
patent: 5437167 (1995-08-01), Ambar
patent: 5488839 (1996-02-01), Udko
patent: 5690477 (1997-11-01), Haimoff
patent: 6112552 (2000-09-01), Hoffman
patent: 6516864 (2003-02-01), Ounjian et al.

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