Patents by Inventor Anthony A. Tonelli

Anthony A. Tonelli 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).

  • High purity water production using ion exchange
    Patent number: 6267891
    Abstract: A method of producing high purity water using weak acid cation exchange for dealkalization and a double pass reverse osmosis membrane system having enhanced membrane life.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: July 31, 2001
    Assignee: Zenon Environmental Inc.
    Inventors: Anthony A. Tonelli, Eric Harrison, Susan Leanne Wesno, Hadi Husain, Andrew Benedek
  • High purity water production
    Patent number: 6258278
    Abstract: A method of producing high purity water using dealkalization and a double pass reverse osmosis membrane system having enhanced membrane life.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 10, 2001
    Assignee: Zenon Environmental, Inc.
    Inventors: Anthony A. Tonelli, Eric Harrison, Susan Leanne Wesno, Hadi Husain, Andrew Benedek
  • High resistivity water production with controlled water temperatures
    Patent number: 6126834
    Abstract: An adaptive control method for producing high purity water, the method having the ability to produce high purity water on a continuous basis having a resistivity in the range of 0.8 to 4 megohm-cm. The method comprises the steps of providing a feedwater to be purified and providing a first reverse osmosis unit having a first high pressure side and a first low pressure side and having a first permeate produced at the first low pressure side. The pH of the feedwater to be introduced to the high pressure of the first reverse osmosis unit is monitored before introducing the feedwater to the high pressure side of the first reverse osmosis unit. Also, the feedwater is maintained in a temperature range of 45.degree. to 80.degree. F. A second reverse osmosis unit is provided having a second high pressure side and a second low pressure side for producing high purity product water.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 3, 2000
    Assignee: Zenon Environmental Inc.
    Inventors: Anthony A. Tonelli, Eric Harrison, Ake Deutschmann
  • High purity water using triple pass reverse osmosis (TPRO)
    Patent number: 6120689
    Abstract: A method for producing high purity product water using a three pass reverse osmosis system.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: September 19, 2000
    Assignee: Zenon Environmental, Inc.
    Inventors: Anthony A. Tonelli, Ake Deutschmann, Susan L Wesno
  • High resistivity water production
    Patent number: 6080316
    Abstract: An adaptive control method for producing high purity water, the method having the ability to produce high purity water on a continuous basis having a resistivity in the range of 0.8 to 4 megohm-cm. The method comprises the steps of providing a feedwater to be purified and providing a first reverse osmosis unit having a first high pressure side and a first low pressure side and having a first permeate produced at the first low pressure side. The pH of the feedwater to be introduced to the high pressure of the first reverse osmosis unit is monitored before introducing the feedwater to the high pressure side of the first reverse osmosis unit. A second reverse osmosis unit is provided having a second high pressure side and a second low pressure side for producing high purity product water.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: June 27, 2000
    Inventors: Anthony A. Tonelli, Eric Harrison
  • Method for producing high purity water using triple pass reverse osmosis (TPRO)
    Patent number: 5997745
    Abstract: A method for producing high purity product water using a three pass reverse osmosis system.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: December 7, 1999
    Assignee: Zenon Environmental Inc.
    Inventors: Anthony A. Tonelli, Ake Deutschmann, Susan L Wesno