Patents Assigned to Siljan Allards AB
  • Measuring method and system and use of the method and system
    Patent number: 7250302
    Abstract: A method for optical measuring of the solid substance content in a fluid uses periodical flushing of an optical sensor (1) with a combination of pressurized air and water in the form of a jet. The jet exerts a very powerful cleaning effect without causing scratches on measuring surfaces of glass or similar materials. The invention also relates to a system for performing such flushing in connection with measuring.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: July 31, 2007
    Assignee: Siljan Allards AB
    Inventors: Sven Bernhardsson, Johan Liljha, Leif Pellas