Patents by Inventor Janne LEPPÄKANGAS

Janne LEPPÄKANGAS 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 apparatus for plain bearing crush height measurement
    Patent number: 11892280
    Abstract: A method and apparatus for determining crush height of a plain bearing shell, including a light source for forming illuminating light to the plain bearing shell; a sensor device configured to capture an image; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to: capture a first image of the plain bearing shell in a first mode, wherein no external compression stress in a circumference direction of the plain bearing shell is formed; generate plain bearing data based on the first captured image; maintain housing reference data including at least diameter information of a bore for receiving the plain bearing shell; and determine crush height of the plain bearing shell based on the plain bearing data and the housing reference data.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 6, 2024
    Assignee: Wärtsilä Finland Oy
    Inventors: Janne Leppäkangas, Pasi Halla-aho, Jaakko Istolahti, Jukka-Pekka Vesala
  • METHOD AND APPARATUS FOR PLAIN BEARING CRUSH HEIGHT MEASUREMENT
    Publication number: 20210190477
    Abstract: A method and apparatus for determining crush height of a plain bearing shell, including a light source for forming illuminating light to the plain bearing shell; a sensor device configured to capture an image; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to: capture a first image of the plain bearing shell in a first mode, wherein no external compression stress in a circumference direction of the plain bearing shell is formed; generate plain bearing data based on the first captured image; maintain housing reference data including at least diameter information of a bore for receiving the plain bearing shell; and determine crush height of the plain bearing shell based on the plain bearing data and the housing reference data.
    Type: Application
    Filed: August 21, 2018
    Publication date: June 24, 2021
    Applicant: Wärtsilä Finland Oy
    Inventors: Janne LEPPÄKANGAS, Pasi HALLA-AHO, Jaakko ISTOLAHTI, Jukka-Pekka VESALA