Patents by Inventor Thomas J. Zodrow

Thomas J. Zodrow 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).

  • Patent number: 5588947
    Abstract: An apparatus and method provides a way of collecting, treating, processing and recycling a variety of hazardous waste material and transforming such materials into a stable, granular nonhazardous substance suitable for safe disposal. The apparatus disclosed combines a variety of separate mechanisms and devices such as vibrating screens, motorized crushers, conveyor systems, and electric or fuel powered motors into a single integrated machine. Chemical additives can be used to treat the waste and bond to any heavy, leachable materials such as lead, copper, cadmium, zinc and other metals and thus lower their leaching characteristics to acceptable nonhazardous levels in compliance with Environmental Protection Agency standards. A concrete additive is added to the waste and the mixture is ground into a manageable substance of uniform texture and consistency.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: December 31, 1996
    Assignee: Entact Corporation
    Inventors: Michael K. Studer, Thomas J. Zodrow, Timothy J. Elms