Patents by Inventor Jocelyne McGeever

Jocelyne McGeever 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 to protect the surface of metal in vertical melting furnaces
    Patent number: 4828609
    Abstract: Inert liquid gas such as liquid nitrogen or liquid argon is used in vertical melting furnaces to prevent oxidation of the metal during holding periods. The method can be applied to any kind of metal. The use of inert liquid gas for the "blow-dow" of the furnace will flush art all existing furnace atmosphere and prevent oxidation. The casting recovery time may be reduced from about one hour to 15 minutes. Also the layers of oxide resulting from oxidation can be negated, allowing for fewer rejects, if any, during further surface treatment.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: May 9, 1989
    Assignee: Liquid Air Corporation
    Inventors: Sara H. Anderson, Jocelyne McGeever, Casey McGeever, Greg Carr