Patents by Inventor Eugenio Hamm Hahn

Eugenio Hamm Hahn 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).

  • Thin packaging film having an incipient tear
    Patent number: 8974883
    Abstract: A thin packaging film 1 includes a reference area 2 having a closed contour and which is surrounded over its entire periphery by a tear-off area, an incipient tear 3 being precut in this film so as to intercept this contour while leading into the latter while forming a gripping portion 4 capable of being pulled away from the plane of this thin film, the reference area being designed so as to trap one end of this incipient tear within the contour while the other end propagates by tearing in a spiral from the tear-off area over at least 180° around this reference area when the gripping portion begins to undergo pulling. This closed contour is preferably circular. The closed contour area can in particular be an opening, or a portion of film surrounded by a reinforcement material loop.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 10, 2015
    Assignees: Centre National de la Recherche Scientifique (CNRS), Universidad de Chile, Universidad de Santiago de Chile
    Inventors: Enrique Cerda Villablanca, Eugenio Hamm Hahn, Victor Romero Gramegna, Benoit Roman
  • THIN PACKAGING FILM HAVING AN INCIPIENT TEAR
    Publication number: 20120237713
    Abstract: A thin packaging film 1 includes a reference area 2 having a closed contour and which is surrounded over its entire periphery by a tear-off area, an incipient tear 3 being precut in this film so as to intercept this contour while leading into the latter while forming a gripping portion 4 capable of being pulled away from the plane of this thin film, the reference area being designed so as to trap one end of this incipient tear within the contour while the other end propagates by tearing in a spiral from the tear-off area over at least 180° around this reference area when the gripping portion begins to undergo pulling. This closed contour is preferably circular. The closed contour area can in particular be an opening, or a portion of film surrounded by a reinforcement material loop.
    Type: Application
    Filed: December 2, 2010
    Publication date: September 20, 2012
    Applicants: UNIVERSIDAD DE CHILE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSIDAD DE SANTIAGO DE CHILE
    Inventors: Enrique Cerda Villablanca, Eugenio Hamm Hahn, Victor Romero Gramegna, Benoit Roman