Patents by Inventor Lars-Bertil Ohlson

Lars-Bertil Ohlson 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: 5274954
    Abstract: A door control system for dishwashers having doors mounted for pivotal movement between a vertical closed position and a horizontal open position. Pivot brackets are provided on each side of the door to support the door for such pivotal movement. A counterbalancing spring is connected to the bracket to produce a resilient force urging the door toward the closed position. A damper is also connected to the bracket to control the rate of movement of the door so that the door slowly and gently approaches the open position. The system functions effectively without adjustment of the spring even when the weight of the door is changed by the addition of decorative panels to the outside of the door.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: January 4, 1994
    Assignee: Aktiebolaget Electrolux
    Inventors: Carl Quarfordt, Lars-Bertil Ohlson