Patents by Inventor Per I. Olsson

Per I. Olsson 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).

  • Mixer tap
    Patent number: 4705074
    Abstract: A changeover valve for a bath and shower is disclosed which has alternative flow channels formed by three disks. In a first position fluid flow is shut off. In a second position fluid flows through axially aligned ports in the three disks and in a third position fluid flows through a generally U-shaped passage formed by two of the three disks. The second position provides greater flow than the third position.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: November 10, 1987
    Assignee: Danfoss A/S
    Inventors: Per I. Olsson, Yngve G. Sedwall