Patents Assigned to North West Environmental Systems, Inc.
  • Apparatus and method for producing a foam bovine teat dip
    Patent number: 6302058
    Abstract: An apparatus and method for producing a foam surfactant suitable for a bovine teat dip comprises air pressurization of a surfactant solution containing a germicide, disinfectant, biocide, etc., passing the air-surfactant mixture through a flow or line mixer to a foam holding cup adjacent the teat area and expanding the mixture in the holding cup to produce an adherent surfactant foam product with reduced run off, which both protects and reduces infection of the teat and surrounding udder area.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: October 16, 2001
    Assignees: North West Environmental Systems, Inc., Pro Chemicals, Inc.
    Inventors: Janet F. Dahl, Dennis L. Edison, Paul E. Fowler, Michael R. Stettler