Patents by Inventor Lennart G. O. Dahlgren

Lennart G. O. Dahlgren 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: 4515454
    Abstract: This invention relates to a focusing hood for cameras comprising a cover (2) mounted at the camera box for being folded up, and lateral pieces and a back piece (3) mounted at the cover, the respective lateral piece divided into a front lateral piece portion (4) and a rear lateral piece portion (5) hingedly attached to each other. The back piece (3) further is connected to the box by means of a link hinged at the box and back piece. The invention is characterized in that the link consists of a first portion (8) hingedly mounted on the box and a second portion (10) hingedly mounted at the back piece (3) on a level vertically beneath the center thereof at folded-out focusing hood, and at the first portion (8) substantially on a level at half the height of the back piece.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: May 7, 1985
    Assignee: Victor Hasselblad Aktiebolag
    Inventor: Lennart G. O. Dahlgren