Patents by Inventor Sven Bertil Simonsson

Sven Bertil Simonsson 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).

  • Fill indicator for a vacuum cleaner dust collector
    Patent number: 4060050
    Abstract: An indicator device mounted on a vacuum cleaner housing which is under the influence of the pressure differnce between the inlet and outlet of a dust or dirt collector unit of the vacuum cleaner. The outer surface of the indicator device has markings that are continuously visible, and which show the amount of accumulated dust and dirt filling in the dust collector, at any given time.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: November 29, 1977
    Assignee: Aktiebolaget Electrolux
    Inventor: Sven Bertil Simonsson
  • Combination dust container and latching means for a vacuum cleaner
    Patent number: 4044421
    Abstract: A vacuum cleaner housing having a latching means for engagement with a portion of a disposable dust container when the latter is positioned within the vacuum cleaner so that the dust container is correctly latched. The correct latching indicates to the user that a dust container is present within the vacuum cleaner. The present arrangement is particularly suitable for tank-type cleaners in which the housing is opened and closed each time the full disposable dust container is removed.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: August 30, 1977
    Assignee: Aktiebolaget Electrolux
    Inventors: Kerstin Elisabeth Kristenson, Sven Bertil Simonsson