Patents by Inventor Larned B. Asprey

Larned B. Asprey 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).

  • Method for recovery of actinides from refractory oxides thereof using O.sub. F.sub.2
    Patent number: 4724127
    Abstract: Method for recovery of actinides from nuclear waste material containing sintered and other oxides thereof using O.sub.2 F.sub.2 to generate the hexafluorides of the actinides present therein. The fluorinating agent, O.sub.2 F.sub.2, has been observed to perform the above-described tasks at sufficiently low temperatures that there is virtually no damage to the containment vessels. Moreover, the resulting actinide hexafluorides are not destroyed by high temperature reactions with the walls of the reaction vessel. Dioxygen difluoride is readily prepared, stored and transferred to the place of reaction.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: February 9, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Larned B. Asprey, Phillip G. Eller
  • Method of preparing pure fluorine gas
    Patent number: 3989808
    Abstract: A simple, inexpensive system for purifying and storing pure fluorine is described. The method utilizes alkali metal-nickel fluorides to absorb tank fluorine by forming nickel complex salts and leaving the gaseous impurities which are pumped away. The complex nickel fluoride is then heated to evolve back pure gaseous fluorine.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: November 2, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Larned B. Asprey