Patents by Inventor Stefan LINDVALL

Stefan LINDVALL 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).

  • Publication number: 20210154793
    Abstract: A method for producing a groove pattern on a cylinder surface includes providing an abrasive module, including an abrasive mesh article and collector block, providing a patterning head, which including the abrasive module and pressing actuator, pressing the abrasive module against the cylinder surface by using the actuator, forming a plurality of grooves on the cylinder surface by causing relative motion between the abrasive module and cylinder surface, and drawing gas through the abrasive mesh article to collect particles released from the cylinder surface. The abrasive mesh article includes a plurality of abrasive grains bonded to a flexible mesh backing, defining openings. The collector block has a curved supporting surface defining openings. The abrasive mesh article is attached to the curved supporting surface by a releasable fastening system. The openings of the flexible mesh backing are in communication with the openings of the collector block via the releasable fastening system.
    Type: Application
    Filed: April 8, 2019
    Publication date: May 27, 2021
    Inventors: Göran HÖGLUND, Hans HEDE, Stefan LINDVALL
  • Patent number: 10981260
    Abstract: An abrasive product having an abrasive surface, a belt of an abrasive product, a roll of an abrasive product and a method for manufacturing an abrasive product. An abrasive product includes a backing and an abrasive surface. The abrasive surface includes at least a first abrasive area and a second abrasive area, wherein abrasive properties of the first abrasive area are different from abrasive properties of the second abrasive area.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 20, 2021
    Assignee: KWH MIRKA LTD
    Inventors: Stefan Lindvall, Mats Sundell
  • Publication number: 20210046613
    Abstract: A continuous abrasive product includes predetermined length and number of predetermined kind of abrasive areas on an abrasive surface, A method for abrading a workpiece, includes arranging an abrasive area of an abrasive product at an abrading zone for abrading the workpiece, and after abrading, replacing the abrasive area at the abrading zone with an another abrasive area of the abrasive product for abrading the workpiece according to a subsequent abrading phase. The used abrasive area is replaced by an unused abrasive area of a different kind. The abrasive product comprises a continuous longitudinal abrasive material including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties.
    Type: Application
    Filed: March 11, 2019
    Publication date: February 18, 2021
    Applicant: Mirka Ltd
    Inventor: Stefan LINDVALL
  • Publication number: 20180178351
    Abstract: An abrasive product having an abrasive surface, a belt of an abrasive product, a roll of an abrasive product and a method for manufacturing an abrasive product. An abrasive product includes a backing and an abrasive surface. The abrasive surface includes at least a first abrasive area and a second abrasive area, wherein abrasive properties of the first abrasive area are different from abrasive properties of the second abrasive area.
    Type: Application
    Filed: May 25, 2016
    Publication date: June 28, 2018
    Applicant: KWH MIRKA LTD
    Inventors: Stefan LINDVALL, Mats SUNDELL
  • Patent number: D903732
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: December 1, 2020
    Assignee: Mirka Ltd.
    Inventor: Stefan Lindvall