Patents by Inventor Stephen Axtell

Stephen Axtell 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).

  • Publication number: 20090173697
    Abstract: Monochloramine is efficiently manufactured by introducing controlled quantities of an ammonia source and a chlorine source in a small side-stream of water in a small diameter pipe under turbulent flow conditions. The ammonia source and chlorine source can be injected in either order and are separated by a sufficient distance to ensure that the first chemical is adequately diffused throughout the water prior to the injection of the second chemical. A sufficient length of a mixing chamber insures that turbulent flow is maintained for a length of time sufficient to thoroughly mix the two chemicals to produce monochloramine. This mixing technique allows for the manufacture of high concentrations of monochloramine at atmospheric pressure without off gassing.
    Type: Application
    Filed: January 30, 2009
    Publication date: July 9, 2009
    Inventors: Stephen Axtell, Robert Cumming, Sam M. Jaffe, Jerry Johns, Robert Kim, Joe Phillips
  • Publication number: 20080006587
    Abstract: A method and apparatus are disclosed for injection of carbon dioxide into a process water stream. The method and apparatus allow carbon dioxide injection using any line pressure as it normally exists in a target water stream and produces superior mixing and carbon dioxide transfer results. The benefits of this method and device significantly improve the economics of using carbon dioxide gas to control pH and at the same time reduces the negative impact on the environment caused by the off gassing of carbon dioxide that is not effectively mixed into solution.
    Type: Application
    Filed: February 8, 2007
    Publication date: January 10, 2008
    Inventors: Robert Cumming, Stephen Axtell, Jerry Johns, Robert Kim, Joe Phillips
  • Publication number: 20080006586
    Abstract: Monochloramine is efficiently manufactured by introducing controlled quantities of an ammonia source and a chlorine source in a small side-stream of water in a small diameter pipe under turbulent flow conditions. The ammonia source and chlorine source can be injected in either order and are separated by a sufficient distance to ensure that the first chemical is adequately diffused throughout the water prior to the injection of the second chemical. A sufficient length of a mixing chamber insures that turbulent flow is maintained for a length of time sufficient to thoroughly mix the two chemicals to produce monochloramine. This mixing technique allows for the manufacture of high concentrations of monochloramine at atmospheric pressure without off gassing.
    Type: Application
    Filed: February 8, 2007
    Publication date: January 10, 2008
    Inventors: Stephen Axtell, Robert Cumming, Sam M. Jaffe, Jerry Johns, Robert Kim, Joe Phillips
  • Publication number: 20050211643
    Abstract: A method and apparatus for implementing pathogen reduction within a poultry processing or food processing plant that uses water that has been treated with chloramines at an advantageous dosage before being introduced to the production process at processing steps. The water treated with chloramines may be from a fresh water source or reclaimed water from the processing plant. The reintroduction of the treated reclaimed water advantageously causes a dramatic reduction in the levels of microorganisms associated with poultry processing, while substantially conserving water use.
    Type: Application
    Filed: July 11, 2003
    Publication date: September 29, 2005
    Inventors: Joseph Phillips, Robert Kim, Stephen Axtell, Sam Jaffe