Patents by Inventor Thure Carnfeldt

Thure Carnfeldt 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).

  • Method and system for disinfection and sterilization of foodstuffs and machinery
    Patent number: 6080435
    Abstract: A method and installation for disinfection or sterilization of food articles or machinery, in which the item of food or machinery to be disinfected or sterilized is electrically grounded, and vapor from water or other liquid substance is generated and directed through an electrostatic potential field of defined shape generated with an electrostatic high voltage, whereby the vapor assumes the shape of the field with an electrostatic potential imposed thereon. The grounded item is exposed to the charged vapor for a predetermined time at a temperature above 50.degree. C.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: June 27, 2000
    Inventors: Ulrik Rubow, Thure Carnfeldt
  • Method and apparatus for disinfecting or sterilizing foodstuffs and other articles
    Patent number: 5902619
    Abstract: A method and apparatus for disinfection or sterilizing an article which is a food or foodstuff, or a surface of an article for contacting a food or foodstuff. According to the invention, the article is grounded and is treated with an electrically charged mist of a liquid having a redox potential and a predetermined pH. The mist is subsequently evaporated from the article.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: May 11, 1999
    Inventors: Ulrik Rubow, Thure Carnfeldt