Diamond anvil having diamonds with curved edges

• US 5,341,694 A
• Filed: 03/12/1992
• Issued: 08/30/1994
• Est. Priority Date: 03/12/1992
• Status: Expired due to Fees

• Current Assignee: Lazare Kaplan International Incorporated
• Original Assignee: Lizare Kaplan International Incorporated
• Inventors: Kaplan, George R.
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US07/849,867
• Time in Patent Office: 901 Days
• Field of Search: 73/864.91, 73/860, 73/818, 425/77, 425/DIG. 26, 356/36, 356/244, 356/246
• US Class Current: 73/864.91
• CPC Class Codes: G01N 21/0317 High pressure cuvettes; G01N21/0332 - G01N21/15 take precedence
• CPC Class Codes: G01N 2203/0488 Diamond anvil cells
• CPC Class Codes: G01N 3/04 Chucks

Abstract

A diamond anvil of the type comprising (a) a pair of diamonds having a facing, plane parallel bearing surfaces and (b) a device for applying a force to the diamonds tending to press the bearing surfaces together. Both diamonds have a peripheral surface, extending outward from the bearing surface, which is tangent to the bearing surface at the interface thereto and which tapers away from the bearing surface with a continuous curved surface.

Claims

1. In diamond anvil apparatus comprising (a) a pair of diamonds having facing, plane parallel bearing surfaces and (b) means for applying a force to said diamonds tending to press said bearing surfaces together, the improvement wherein both of said diamonds have a peripheral surface, extending outward from said bearing surface, which is tangent to said bearing surface at the interface thereto and which tapers away from said bearing surface with a continuous curved surface.

2. The apparatus defined in claim 1, wherein said continuous curved surface has a constant radius of curvature.

3. The apparatus defined in claim 1, wherein said continuous curved surface has a continuously changing radius of curvature.

4. A diamond for use in diamond anvil apparatus that comprises (a) a pair of diamonds having a facing, plane parallel bearing surfaces and (b) means for applying a force to said diamonds tending to press said bearing surfaces together, said diamond having a peripheral surface, extending outward from said bearing surface, which is tangent to said bearing surface at the interface thereto and which tapers away from said bearing surface with a continuous curved surface.

5. The diamond defined in claim 4, wherein said continuous curved surface has a constant radius of curvature.

6. The diamond defined in claim 4, wherein said continuous curved surface has a continuously changing radius of curvature.