Patents by Inventor Lennart S. Wahlstrom

Lennart S. Wahlstrom 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).

  • Discharging device for a packaging container
    Patent number: 5366296
    Abstract: A packaging container having a discharging or docketing device for allowing uninterrupted aseptic connection to for instance a hose having an orifice.The container has a channel (13') of a flexible material terminated by a grip flap (16). The flap (16) is torn away along tearing denotations (17, 17') and weakenings (19, 20) for opening the channel. By locating the weakenings (16) such that they do not coincide, there is obtained at least one protruding portion which will expose a portion on the inside of the channel when the channel is opened up.This portion then acts as an entering surface for facilitating connection.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: November 22, 1994
    Assignee: AB Tetra Pak
    Inventors: Lennart A. Stenstrom, Lennart S. Wahlstrom, Bert S. Wikholm
  • Discharging device for a packaging container
    Patent number: 5251982
    Abstract: A packaging container having a discharging or docketing device for allowing uninterrupted aseptic connection to for instance a hose having an orifice.The container has a channel (13') of a flexible material terminated by a grip flap (16). The flap (16) is torn away along tearing denotations (17, 17') and weakenings (19, 20) for opening the channel. By locating the weakenings (16) such that they do not coincide there is obtained at least one protruding portion which will expose portion on the inside of the channel when the channel is opened up.This portion then acts as an entering surface for facilitating connection.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: October 12, 1993
    Assignee: AB Tetra Pak
    Inventors: Lennart A. Stenstrom, Lennart S. Wahlstrom, Bert S. Wikholm