Patents by Inventor Michael E. Neale

Michael E. Neale 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).

  • System for treatment of photographic wastewater effluent
    Patent number: 5277775
    Abstract: There is disclosed a system for treatment of wastewater effluent from a photographic process which produces a developer effluent, a bleach effluent and a fixer effluent. The system comprises a developer treatment zone, a bleach treatment zone and a fixer treatment zone. Within each zone, there are provided defined means of pH adjustment of the effluent and a defined electrolytic cell for electrolysis of the effluent. A process for conducting the system is also provided. The invention may be advantageously used to reduce the concentration of or eliminated chemicals contained in the effluent.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: January 11, 1994
    Assignee: Environmental Systems (International) Limited
    Inventor: Michael E. Neale
  • Electrolytic process for treatment of photographic wastewater effluent
    Patent number: 5160417
    Abstract: There is disclosed a system for treatment of wastewater effluent from a photographic process which produces a developer effluent, a bleach effluent and a fixer effluent. The system comprises a developer treatment zone, a bleach treatment zone and a fixer treatment zone. Within each zone, there are provided defined means of pH adjustment of the effluent and a defined electrolytic cell of electrolysis of the effluent. A process for conducting the system is also provided. The invention may be advantageously used to reduce the concentration of or eliminated chemicals contained in the effluent.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: November 3, 1992
    Assignee: Environmental Systems (International) Ltd.
    Inventor: Michael E. Neale