Patents by Inventor Jyrki NISSINEN

Jyrki NISSINEN 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).

  • PERCUSSION DEVICE AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20240133158
    Abstract: A hydraulic percussion device and method of controlling a working cycle of a percussion piston is provided. A rock breaking machine includes a percussion device provided with a reciprocating piston executing a working cycle. The operation is controlled by means of a control unit generating control signals for independently operable feed and discharge valves of a hydraulic system. The position of the piston is detected by a sensing device.
    Type: Application
    Filed: February 8, 2022
    Publication date: April 25, 2024
    Inventors: Mika OKSMAN, Jyrki NISSINEN, Juhani LAINE, Ossi GROHN
  • Breaking hammer and method of supporting percussion piston
    Patent number: 11828137
    Abstract: A hydraulic breaking hammer and method of supporting a percussion piston is provided. The breaking hammer includes a percussion device provided with a reciprocating piston. The piston is supported on a frame at its end portions by a first piston bearing element and a second piston bearing element. The second piston bearing element includes a collar sealing element facing towards a working collar of the piston. The piston bearing elements are easily mountable and dismountable separate components.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: November 28, 2023
    Assignee: Sandvik Mining and Construction Oy
    Inventors: Mika Oksman, Jyrki Nissinen, Juhani Laine, Harri Moilanen
  • BREAKING HAMMER AND METHOD OF SUPPORTING PERCUSSION PISTON
    Publication number: 20220251904
    Abstract: A hydraulic breaking hammer and method of supporting a percussion piston is provided. The breaking hammer includes a percussion device provided with a reciprocating piston. The piston is supported on a frame at its end portions by a first piston bearing element and a second piston bearing element. The second piston bearing element includes a collar sealing element facing towards a working collar of the piston. The piston bearing elements are easily mountable and dismountable separate components.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 11, 2022
    Inventors: Mika OKSMAN, Jyrki NISSINEN, Juhani LAINE, Harri MOILANEN
  • Seal of tool and method of sealing
    Patent number: 9777842
    Abstract: A seal of a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal is a sealing ring having an outer periphery provided with several projecting elements, which are slanted. The projecting elements generate torque in the sealing ring when being pushed in a transverse direction during use of the breaking hammer. Thus, the sealing ring may rotate relative to the tool.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 3, 2017
    Assignee: SANDVIK MINING AND CONSTRUCTION OY
    Inventors: Ossi Kahra, Jyrki Nissinen
  • SEAL OF TOOL AND METHOD OF SEALING
    Publication number: 20160123472
    Abstract: A seal of a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal is a sealing ring having an outer periphery provided with several projecting elements, which are slanted. The projecting elements generate torque in the sealing ring when being pushed in a transverse direction during use of the breaking hammer. Thus, the sealing ring may rotate relative to the tool.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 5, 2016
    Inventors: Ossi KAHRA, Jyrki NISSINEN