Patents by Inventor Darrell W. Breitling

Darrell W. Breitling 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 melting copper
    Patent number: 5240494
    Abstract: A method is disclosed for melting copper without incorporating unwanted oxygen and/or hydrogen into the copper by effectively controlling the burners used to melt the copper within desired fuel/air ratio operating limits by employing a special fuel/air mixture sampling and control system.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: August 31, 1993
    Assignee: ASARCO Incorporated
    Inventors: Jim D. Williams, Darrell W. Breitling