B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
148/1, 253/10
B01J 3/00 (2006.01)
Patent
CA 1066264
ABSTRACT A high pressure apparatus for synthesizing diamonds which comprises a pair of opposed tapered pistons each having a truncated end surface, a pair of hollow truncated-conical piston protectors each of which is made of a ductile metal and arranged on the tapered piston surface, an annular die member having a substantially cylindrical wall of a diameter larger than that of each piston truncated and surface, a hollow cylindrical body made of less compressibility coefficient material than the die material and having an outer diameter substantially same or slightly smaller than the diameter of said truncated end surface of each pistons and positioned coaxially within the die cylindrical wall, and gaskets placed respectively at the ends of said cylindrical body. A lubrica- tive layer is formed between the inner surface of each of the piston protectors and the tapered surface of each of said pistons.
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