Patents by Inventor Sten Salenbo

Sten Salenbo 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: 4437851
    Abstract: A method and an apparatus for handling and setting up large slit-boxes of the type which is formed by a tubular slit-box blank (6) which is collapsed into a flat two layer blank and which comprises sides (7,8) with connected inner flaps (9) and outer flaps (10) respectively at at least one end of the slit-box. The slit-box is handled in a horizontal position by means of a catcher carriage (16) which is displaceable between a first position over a magazine for slit-box blanks (6) and second position for setting up the slit-box blanks. The carriage has a first set of catchers (17) to catch a first side (8) and its connected outer flaps (10) in the first layer of slit-box blanks and a second set of catchers (20) to catch the second side (7) in the upper layer of the slit-box blank. The said second side (7) is released so that the slit-box by its own weight moves to a more or less open position. The inner flap (9) of the released slit-box side (7) in then introduced into the space between the outer flaps (10).
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: March 20, 1984
    Inventor: Sten A. Salenbo
  • Patent number: 4224781
    Abstract: An apparatus for handling of unsealed slit boxes (2) of the type having at least at the bottom thereof two pairs of close flaps (3, 4), and which comprises a cradle-like support (11) in the form of a U-bar which is open at the top and which at the bottom is formed with a guide and lock bar (17) having two lock plates (19, 20) provided spaced one above the other and spaced from the bottom of the cradle support and between which two opposite close flaps (4) at the bottom of the slit box (2) can be introduced and moved in the longitudinal direction of the cradle support while retaining the slit box and preventing the slit box from moving upwards.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: September 30, 1980
    Assignee: Sundpacma Aktiebolag
    Inventor: Sten Salenbo