Patents by Inventor Erik AIRAS

Erik AIRAS 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: 20240173838
    Abstract: A shield arrangement, breaking hammer and method of protecting body of a breaking hammer is provided. The shield arrangement includes a shield element, which is mounted to the body by means of a separate sleeve-like element passing through an opening of the shield element. The sleeve-like element is a tool bushing, which also provides support for a breaking tool.
    Type: Application
    Filed: March 29, 2022
    Publication date: May 30, 2024
    Inventors: Erik AIRAS, Juho HUOTARI, Ilkka NIEMI, Juha INTONEN, Jarkko LUOKKALA
  • Publication number: 20230069735
    Abstract: A pressure accumulator, rock breaking machine and method of storing pressure energy. The accumulator includes a casing and an elastic membrane arranged inside the casing. The membrane divides an inner space of the casing into two separate pressure spaces. A gas space is prefilled with pressurized gas. On the opposite side of the membrane is a hydraulic space for receiving hydraulic fluid. The membrane is a hat-like element having side walls, a mounting flange at its open end and a closed top end. The mounting flange of the membrane is mounted between the casing and a flange element. The accumulator is without a screen. The flange element is provided with a sealing for sealing a piston.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 2, 2023
    Inventor: Erik AIRAS