Patents by Inventor Timothy Jessup

Timothy Jessup 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).

  • Recovery of petalite from ores containing feldspar minerals
    Patent number: 6138835
    Abstract: A method for recovering petalite from a mixture comprising petalite and feldspar minerals comprises the steps of forming an aqueous slurry of the mixture and adding to the slurry a depressant selected from the group consisting of alkaline earth metal chlorides, alkali metal chlorides, and mixtures thereof. Next, a collector comprising a quaternary ammonium salt is added to the slurry. The slurry is then subjected to a froth flotation process and petalite that is substantially free of feldspar minerals is selectively recovered from the flotation process.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: October 31, 2000
    Assignee: Avalon Ventures Ltd.
    Inventors: Timothy Jessup, Srdjan Bulatovic