Patents by Inventor John Muszynski

John Muszynski 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).

  • Electrostatic separation of plastic materials
    Patent number: 5118407
    Abstract: An apparatus and associated method of separating mixed fragments of different plastic materials, in which the materials to be separated are capable of carrying electrostatic charges of opposite polarities. The mixed charged fragments are given an induced electrostatic charge and are then exposed to electrostatic field of opposite polarities where they are separated by being allowed to migrate toward their respectively oppositely charged fields. The separated material fragments are then collected.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: June 2, 1992
    Assignee: Devtech Labs, Inc.
    Inventors: Martin H. Beck, George F. Rollend, Richard C. Nichols, John Muszynski