Patents Assigned to Elmhurst Research, Inc.
  • High pressure apparatus with stackable rings
    Patent number: 8435347
    Abstract: A high pressure apparatus and related methods for processing supercritical fluids is described. The apparatus includes a capsule, a heater, at least one ceramic ring with one or more scribe marks and/or cracks present. The apparatus optionally has a metal sleeve containing each ceramic ring. The apparatus also has a high-strength enclosure, end flanges with associated insulation, and a power control system. The apparatus is capable of accessing pressures and temperatures of 0.2-2 GPa and 400-1200° C., respectively.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: May 7, 2013
    Assignees: Soraa, Inc., Elmhurst Research, Inc.
    Inventors: Mark P. D'Evelyn, Joseph A. Kapp, John C. Lawrenson
  • High Pressure Apparatus with Stackable Rings
    Publication number: 20120137966
    Abstract: A high pressure apparatus and related methods for processing supercritical fluids is described. The apparatus includes a capsule, a heater, at least one ceramic ring with one or more scribe marks and/or cracks present. The apparatus optionally has a metal sleeve containing each ceramic ring. The apparatus also has a high-strength enclosure, end flanges with associated insulation, and a power control system. The apparatus is capable of accessing pressures and temperatures of 0.2-2 GPa and 400-1200° C., respectively.
    Type: Application
    Filed: September 27, 2010
    Publication date: June 7, 2012
    Applicants: Elmhurst Research, Inc., Soraa, Inc.
    Inventors: Mark P. D'Evelyn, Joseph A. Kapp, John C. Lawrenson
  • Method for the manufacture of very high pressure vessels to survive high cycle fatigue loading
    Patent number: 6154946
    Abstract: The present invention relates to a method for the manufacturing of very high pressure vessels so that they survive high cycle fatigue loading. In particular, the method requires creating a residual tangential stress at a bore radius of a vessel such that the stress under load is more compressive than a maximum applied internal pressure. Furthermore, the method may require creating a residual stress a the inner radii of the supporting jackets such that the stress under load is compressive or zero.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: December 5, 2000
    Assignee: Elmhurst Research, Inc.
    Inventor: Joseph A. Kapp