Patents by Inventor Pauli Dennis Pedersen

Pauli Dennis Pedersen 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).

  • Hydraulic door openers
    Patent number: 3948000
    Abstract: A hydraulic door opener comprising a closed hydraulic circuit including a motor for actuating a door operating spring surrounded by a housing which forms a component part of the hydraulic circuit and serves as a reservoir for the hydraulic liquid.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: April 6, 1976
    Assignee: Ingenjorsfirman Besam Aktiebolag
    Inventor: Pauli Dennis Pedersen