Patents by Inventor Bo Ullman

Bo Ullman 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).

  • Method and device for tightness control of a joint
    Patent number: 4905263
    Abstract: A method and a device for inspecting a joint such as the joint at the rim of a container. Radiant energy is directed into a small area of irradiation on the joint and the container rim is moved relative to the radiant energy so that the area of irradiation moves in one direction along the rim. Additionally, the area of irradiation is scanned crosswise to the one direction to move the area of irradiation across the width of the joint. Radiant energy reflected from the area of irradiation is detected. This radiant energy indicates the characteristics of the joint. The characteristics indicated by the radiant energy are compared to predetermined set value characteristics to detect product residue or other defects in the joint.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: February 27, 1990
    Assignee: AB Akerlund & Rausing
    Inventors: Lennart Larsson, Bo Ullman, H.ang.kan Ohlsson
  • Method and device for tightness control of a joint
    Patent number: 4852136
    Abstract: A method and a device for inspecting a joint such as the joint at the rim of a container. Radiant energy is directed into a small area of irradiation on the joint and the container rim is moved relative to the radiant energy so that the area of irradiation moves in one direction along the rim. Additionally, the area of irradiation is scanned crosswise to the one direction to move the area of irradiation across the width of the joint. Radiant energy reflected from the area of irradiation or transmitted through the area of irradiation is detected. This radiant energy indicates the characteristics of the joint. The characteristics indicated by the radiant energy are compared to predetermined set value characteristics to detect product residue or other defects in the joint.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: July 25, 1989
    Assignee: AB Akerlund & Rausing
    Inventors: Lennart Larsson, Bo Ullman, H.ang.kan Ohlsson
  • Method of manufacturing a body wrapped by a metal foil
    Patent number: 4724027
    Abstract: A method for continuously manufacturing a thin wall tube of an extrudable material, preferably a polyolefine, having a wrapper of a metal foil.A thin wall extrudate is discharged from an extruder and a web of a metal foil having an adhesive layer thereon is fed against the outside of the tube and brought to fully cover the envelope surface of the tube with said layer facing the tube.Thereafter the tube is fed into an opening in a housing forming a pressure and temperature zone.The lamination pressure for laminating the metal foil to the tube is made selfadjusting by adapting the temperature and/or the efficient opening diameter of said opening to the inherent deformation resistance of the tube.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: February 9, 1988
    Assignee: AB Akerlund & Rausing
    Inventors: Lars-Eric Piltz, Bo Ullman, Bengt Svard, Zoltan Pollak