Patents by Inventor Pertti Vainio

Pertti Vainio 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).

  • Patent number: 10961071
    Abstract: A winding machine for winding a finishing roll having a radius R of a sheet material on a core having a radius rc is provided. The winding machine includes: a support drum assembly arranged on a first side of the finishing roll and configured to support the finishing roll from the first side; a rider roll arranged on a second side of the finishing roll opposite to the first side and configured to apply a first nip pressure onto the finishing roll from the second side the finishing roll being supported by the support drum assembly; and a control unit configured to adaptively control the second nip pressure applied by the rider roll onto the finishing roll depending on an ascent rate of the rider roll.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 30, 2021
    Assignee: ABB Schweiz AG
    Inventors: Tapio Talvitie, Pertti Vainio, Jukka Gruzdaitis
  • Publication number: 20200109020
    Abstract: A winding machine for winding a finishing roll having a radius R of a sheet material on a core having a radius rc is provided. The winding machine includes: a support drum assembly arranged on a first side of the finishing roll and configured to support the finishing roll from the first side; a rider roll arranged on a second side of the finishing roll opposite to the first side and configured to apply a first nip pressure onto the finishing roll from the second side the finishing roll being supported by the support drum assembly; and a control unit configured to adaptively control the second nip pressure applied by the rider roll onto the finishing roll depending on an ascent rate of the rider roll.
    Type: Application
    Filed: April 6, 2018
    Publication date: April 9, 2020
    Applicant: ABB Schweiz AG
    Inventors: Tapio Talvitie, Pertti Vainio, Jukka Gruzdaitis
  • Patent number: 5785271
    Abstract: A method of regulation in winding, wherein a number of separate rolls are formed around separate roll cores situated one after another and side by side while being supported by support members and loaded by linear loads produced by truncated rolls in a set of truncated press rolls. The distance at each particular time between at least one truncated roll in the set of truncated press rolls and a beam that loads the set of truncated press rolls is measured. Based on the measured distance, a measurement signal is passed to a regulator which provides a regulation signal to valves that control actuators of the beam so as to adjust the distance between the beam and the set of truncated press rolls to the desired value.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: July 28, 1998
    Assignee: Valmet Corporation
    Inventors: Arto Leskinen, Pertti Vainio