Patents by Inventor Amos Wilkerson

Amos Wilkerson 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).

  • Device and process for the recovery of cadmium and nickel
    Patent number: 5437705
    Abstract: A process and device for recovering cadmium and nickel metals from Ni-Cd battery and processing scrap material containing nickel, cadmium, iron and other substances are disclosed. The process includes depositing the scrap material in a furnace and adding an effective amount of an oxygen getter in the furnace to prevent oxide formation. Argon or nitrogen gas is introduced and maintained in the atmosphere of the furnace. The furnace is then heated for an effective period of time to evaporate free water. The temperature of the furnace is then increased and maintained to approximately 500.degree.-800.degree. C. for an effective period of time to volatilize molecular water and non-metallic substances. The temperature of the furnace is then further raised to greater than approximately 900.degree. C. for an effective period of time to vaporize cadmium from the scrap material.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: August 1, 1995
    Assignee: Eveready Battery Company, Inc.
    Inventors: Ralph J. DeLisle, Harold E. Martin, Amos Wilkerson