Patents by Inventor Robert V. Leonelli, Jr.

Robert V. Leonelli, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High pressure/high temperature apparatus with improved temperature control for crystal growth
    Patent number: 7101433
    Abstract: A high temperature/high pressure (HP/HT) apparatus for converting feedstock housed in a capsule into product crystals, comprising at least two electrical heating paths for independent control of both the mean temperature in the reaction cell and the temperature gradient across the reaction cell.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: September 5, 2006
    Assignee: General Electric Company
    Inventors: Mark P. D'Evelyn, Robert V. Leonelli, Jr., Peter S. Allison, Kristi J. Narang, Robert A. Giddings
  • High pressure apparatus having transition slope binding ring that mitigates tensile stresses and corresponding method
    Patent number: 6375446
    Abstract: A belt/die, pre-tensioned loaded windings, or other high-pressure apparatus has a series of annular rings for confining material being subjected to high-pressure treatment. The series of annular rings has an inner annular ring having an inner upper edge, an outer upper edge, an inner lower edge, and an outer lower edge. The inner lower edge is chamfered at an angle of greater than about 60° from the vertical in order to create a transition slope that mitigates tensile stresses.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: April 23, 2002
    Assignee: General Electric Company
    Inventor: Robert V. Leonelli, Jr.