Patents by Inventor Rolf I. Axelsson

Rolf I. Axelsson 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).

  • Patent number: 4362472
    Abstract: A rotary compressor has an outlet port with a variable area for discharging compressed medium from a working chamber to the outlet. The degree of opening of the outlet port is controlled by a regulator which senses the energy supplied to the compressor for compressing the medium and which from time to time changes the degree of opening of the outlet port until the need of drive energy for the compressor becomes minimal.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: December 7, 1982
    Assignee: Stal Refrigeration AB
    Inventor: Rolf I. Axelsson