| US 7,569,249 B2 | ||
| Anvil for a HPHT apparatus | ||
| David R. Hall, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US); Scott Dahigren, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US); and Timothy C. Duke, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US) | ||
| Filed on Feb. 13, 2007, as Appl. No. 11/674,272. | ||
| Application 11/674272 is a continuation of application No. 11/674045, filed on Feb. 12, 2007, granted, now 7,481,639. | ||
| Prior Publication US 2008/0193581 A1, Aug. 14, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B29C 43/10 (2006.01) | ||
| U.S. Cl. 427—77 [425/330] | 19 Claims |
| 1. A cartridge assembly adapted for connection to a frame of a cubic high pressure, high temperature press, comprising:
a front end comprising a back up intermediate and coaxial with an anvil and a piston;
the anvil comprising a cylindrical base connected to a tapered portion leading to a four-sided working face of the anvil opposite
the base, the tapered portion forming a substantially 45 degree angle with the cylindrical base;
the working face comprising a first surface area which is substantially parallel with the base;
a chamfered region with a second surface area forming a 0.5 to 3.5 degree angle with the tapered portion connected to the
working face and forming a frusto-pyramidal shape;
wherein the second surface area comprises a greater surface area than the first surface area.
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