Patents by Inventor Mark B. Siddall

Mark B. Siddall 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).

  • Zirconium isotope separation
    Patent number: 4487629
    Abstract: A method of separating zirconium isotopes by converting the zirconium to its iodide salt prior to separation by usual isotope methods. After separation the desired isotopes are converted from the salt to the metal by the van Arkel-de Boer iodide process.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: December 11, 1984
    Assignee: Teledyne Industries, Inc.
    Inventor: Mark B. Siddall
  • Iodide cell vapor pressure control
    Patent number: 4368072
    Abstract: A method of controlling the vapor pressure inside of an iodide decomposition vessel or apparatus for an iodide decomposition process by directly measuring the pressure inside the cell and adjusting the temperature of the lid of the cell. Zirconium and hafnium may be purified by the method.
    Type: Grant
    Filed: May 27, 1981
    Date of Patent: January 11, 1983
    Assignee: Teledyne Industries, Inc.
    Inventor: Mark B. Siddall
  • Sponge ring feed for iodide crystal bar cells
    Patent number: 4239531
    Abstract: Using a self-supporting metal sponge ring compact in an Iodide Crystal Bar Cell, as opposed to a loose fill. The sponge ring is formed by compressing the metal into a self supporting sponge ring by any means including isostatic pressing or conventional ram pressing.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: December 16, 1980
    Assignee: Teledyne Industries, Inc.
    Inventor: Mark B. Siddall