Patents by Inventor Pentti Aalto

Pentti Aalto 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).

  • Loss-in-weight feeder control
    Patent number: 6446836
    Abstract: A method and system for feeding particulate matter in a process or similar application uses feed control based on a loss-in-weight measurement scheme. The control signal for the loss-in-weight control system is formed from the sum function of loss-in-weight measurements performed on the weight of a feed unit and a replenishment unit communicating with a continuous or gravitational plug flow.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: September 10, 2002
    Assignees: Raute Precision Oy, Outokumpa Oyj
    Inventors: Pentti Aalto, Jan-Peter Björklund
  • Apparatus for pneumatic transportation of a particle material
    Patent number: 5163787
    Abstract: This invention relates to an apparatus for transporting particularly a powdery material for example from a silo after discharge. The apparatus comprises a flexible hose (1) the inside of which is provided with members (2) for fluidizing the material to be transported. These members are formed in the longitudinal direction of the hose as elements (3) functioning independently of one another.
    Type: Grant
    Filed: April 1, 1990
    Date of Patent: November 17, 1992
    Assignee: Oy Partek AB
    Inventors: Jan-Peter Bjorklund, Jacob Fellman, Pentti Aalto