Patents by Inventor Oskar Pfoh

Oskar Pfoh 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).

  • Process and device for controlling the electrostatic separation of crude potash salts in electrostatic free fall separators
    Patent number: 4743362
    Abstract: A process for controlling the electrostatic separation of crushed chemically conditioned and triboelectrically charged potash salts in a free fall wherein the setting angles of deviating blades for the separated material are controlled by means of a process computer in dependency on the K.sub.2 O-content of the residue which accumulates in the proximity of the negative, separating electrode. The mutual position of the blades determines the K.sub.2 O and NaCl discharge and the amount of the obtained middling material.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: May 10, 1988
    Assignee: Kali und Salz Aktiengesellschaft
    Inventors: Oskar Pfoh, Christian Radick, Helmut Thenert