Patents by Inventor Ulla CHOWDHURY

Ulla CHOWDHURY 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 device for online monitoring of water quality
    Patent number: 10214432
    Abstract: A method for monitoring quality of a water flow in a pipe, by diverting a flow into a laser particle counter to count particles within a particle size interval in the water, to continuously determine the number of particles within the size interval, comparing the count with a reference value and taking a sample of the water from the pipe when the count exceeds a threshold value, and also diverting a flow of water from the pipe into a unit that separates the flow into fractions, and taking a sample of at least one of said fractions when the count exceeds a threshold value, and also sending an alarm signal when the count exceeds a threshold value. When the count exceeds at threshold value, the water is treated with ozone.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: February 26, 2019
    Assignee: AQUA-Q AB
    Inventors: Sudhir Chowdhury, Ulla Chowdhury
  • METHOD AND DEVICE FOR ONLINE MONITORING OF WATER QUALITY
    Publication number: 20160340204
    Abstract: A method for monitoring quality of a water flow in a pipe, by diverting a flow into a laser particle counter to count particles within a particle size interval in the water, to continuously determine the number of particles within the size interval, comparing the count with a reference value and taking a sample of the water from the pipe when the count exceeds a threshold value, and also diverting a flow of water from the pipe into a unit that separates the flow into fractions, and taking a sample of at least one of said fractions when the count exceeds a threshold value, and also sending an alarm signal when the count exceeds a threshold value. When the count exceeds at threshold value, the water is treated with ozone.
    Type: Application
    Filed: February 2, 2015
    Publication date: November 24, 2016
    Applicant: AQUA-Q AB
    Inventors: Sudhir CHOWDHURY, Ulla CHOWDHURY