Patents by Inventor Karl J. Back

Karl J. Back 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: 4565051
    Abstract: In wrapping cylindrical goods or articles the article (1) is rotated about its axis, a stretch film (14) being wrapped round the article (1) substantially in a plane containing the axis of the article. A web-like wrapping material (24) is pressed against the cylindrical surface of the article (1) for rolling out on the article by rotation thereof. The stretch film (14) is wound over the material web (24). The stretch film can be one with a smooth and a sticky side, and which is pulled out from a supply (4). Winding the stretch film can be interrupted when the supply (4) is opposite one end surface of the article while the article rotation is continued a half turn, whereby the stretch film is laterally reversed in relation to the article. The film (14) can be initially wound with its smooth side in contact with the article (1) and later easily laterally reversed so that its smooth side is turned outwards to form the exterior of the article wrapping.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: January 21, 1986
    Inventor: Karl J. Back
  • Patent number: 4553372
    Abstract: A plant for wrapping a cylindrical article includes means (6,7) for carrying and rotating the article relative a supply (1) for a web (71) of wrapping material, means (5,6,10,17) for applying the end of the material web (71) to the article, and parting means (2,29,22) for parting the web (7) at the termination of a wrapping operation. An endless belt (5) runs over two end pulleys (6,10) and is in contact with the envelope surface of the article at a first end pulley (6) of the belt. The other end pulley (10) is arranged at a distance from the article. The supply unit (1) is arranged to carry the web-like material (71) in the form of a coil (8) and includes a clamp roll (17) for the material web, said roll being movable to and from the belt (5) and normally disposed at a distance from the belt. The parting means includes a knife (29) situated between the clamp roll (17) and the first end pulley (6) of the belt at a distance above the part of the belt (5) and facing towards the web (71).
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: November 19, 1985
    Assignee: Stretch Emballering AB
    Inventor: Karl J. Back
  • Patent number: D307966
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: May 15, 1990
    Assignee: Stretch Machinery AB
    Inventor: Karl J. Back