Patents by Inventor Christer Kohle

Christer Kohle 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).

  • Heating apparatus for making a continuous longitudinal seam weld on a laminated packaging material web
    Patent number: 5767491
    Abstract: The disclosure relates to an apparatus for making a continuous welding joint. A material web (20) formed into a tube (8) is sealed along the longitudinal joint seam in that a joint heater (1), preferably an induction heater, is disposed in parallel along the longitudinal joint seam. The sealing operation takes place continuously in a point (18) where a compression device (2) consisting of a pressure roller (9) and a counter pressure roller (10) is provided. The compression device (2) is interconnected together with the joint heater (1), to form a moving unit which may move vertically up and down in relation to the sealing point (18).
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: June 16, 1998
    Assignee: Tetra Laval Holding & Finance S.A.
    Inventors: Michael Ohlsson, Christer Kohle