Patents by Inventor Nils-Arne Johansson

Nils-Arne Johansson 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).

  • Valve for compressors
    Patent number: 3939867
    Abstract: A valve structure for compressors or the like comprising a flexible valve body normally seated over an exhaust aperture in the compressor and a valve catcher connected jointly with the valve body at one end to a valve plate and extending at an angle above and along the length of the valve body, the valve catcher having a recess in which a layer of resilient material is seated to permit the valve body to flex away from the exhaust aperture along a gradually increasing curve in response to excessive pressure.
    Type: Grant
    Filed: July 25, 1972
    Date of Patent: February 24, 1976
    Assignee: Stal-Refrigeration AB
    Inventors: Bertil Lundvik, Nils-Arne Johansson