Method for cutting diamond

Details Method for cutting diamond Method for cutting diamond

2007-03-20

2007-03-20

Rachuba, M. (Department: 3723)

Abrading

Abrading process

Glass or stone abrading

C125S030010

Reexamination Certificate

active

11354122

ABSTRACT:
To provide a diamond rendering reflective light off a table goldenly brilliant by making a proportion thereof symmetrical at any place viewed from an upper face, a side face or a bottom face, a first reference line, a second reference line crossing the first reference lines at a right angle and third reference lines equally dividing segments defined by an intersection of the first reference line and the second reference line into four equal parts, respectively, are provided. A first arc line intersects these reference lines. An approximately regular hexadecagon shaped table is established by line segments defined between these first intersections of the reference lines with the first arc line. Fourth reference lines dividing sectors defined between the third reference lines into two equal parts and a second arc line concentric with and larger than the first arc line, are provided. Star facets are established by interconnecting intersections of the fourth reference lines and the second arc line with intersections of the first arc line and the first to third reference lines. Upper main facets are established by interconnecting intersections of the first to third reference lines with and an outermost arc line and intersections of the fourth reference lines and the second arc line, and intersections of the fourth reference lines and the second arc line with the first intersections.

REFERENCES:
patent: 3534510 (1970-10-01), Leibowitz
patent: 6397832 (2002-06-01), Shuto
patent: 6615611 (2003-09-01), Schachter et al.
patent: 2002/0088450 (2002-07-01), Shuto
patent: 2000-005993 (2000-01-01), None
patent: 3078636 (2001-04-01), None

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