Patents by Inventor Simo AHO

Simo AHO 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 for cleaning a filter element and a filtering device
    Patent number: 11806672
    Abstract: The invention relates to a method for cleaning a filter element made of a porous material. The method comprises directing ultrasound to the filter element, and directing after a predefined time from starting of the ultrasound an impulse to a filtrate reservoir causing filtrate inside the filtrate reservoir to be forced inside the filter element in order to remove particles from the surface of the filter element. Pressure of the impulse is between 4 to 8 times higher than the forward pressure and also that the reverse flux, measured in volume per area time, caused by the impulse is at the minimum 2 to 8 times the feed flux. The invention also relates to a filtering device comprising a filter element made of a porous material.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 7, 2023
    Assignee: Sofi Filtration Oy
    Inventors: Simo Aho, Ville Hakala
  • A METHOD FOR CLEANING A FILTER ELEMENT AND A FILTERING DEVICE
    Publication number: 20200406198
    Abstract: The invention relates to a method for cleaning a filter element made of a porous material. The method comprises directing ultrasound to the filter element, and directing after a predefined time from starting of the ultrasound an impulse to a filtrate reservoir causing filtrate inside the filtrate reservoir to be forced inside the filter element in order to remove particles from the surface of the filter element. Pressure of the impulse is between 4 to 8 times higher than the forward pressure and also that the reverse flux, measured in volume per area time, caused by the impulse is at the minimum 2 to 8 times the feed flux. The invention also relates to a filtering device comprising a filter element made of a porous material.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 31, 2020
    Inventors: Simo AHO, Ville HAKALA