Patents by Inventor Laurence R. Goodman

Laurence R. Goodman 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 and apparatus for increasing flotation cell recovery and grade of complex copper-containing ores
    Patent number: 5182014
    Abstract: Micron sized gas bubbles produced by electrolysis (e.g., oxygen and/or hydrogen gas bubbles by the electrolysis of water) are introduced into a flotation cell which is also provided with larger bubbles produced by sparging a gas such as air into the flotation cell. The mixed presence of both large bubbles and small bubbles serves to improve the recovery of various copper-containing ores. The small bubble producing electrodes can be retrofitted into an existing sparged gas driven flotation cell.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: January 26, 1993
    Inventor: Laurence R. Goodman