Patents by Inventor Rolf Lier

Rolf Lier 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: 5799829
    Abstract: The invention includes an adhesive-filled tube comprising a membrane-sealed mouth and a cannula, with a bore extending over is longitudinal axis, inseparably fixed to the mouth, and a closure cap releasably fixed to the cannula with a needle-like spike which is guided for displacement in the bore of the cannula, and which is held fixed by its head elements, the latter being thicker than its needle element, in a starting position in a recess of the closure cap provided with an access opening to the cannula with the opportunity for axial displacement into an opening position piercing the membrane. In particular, the danger of adhesive issuing from the cannula after the membrane has been pierced is reduced. To this end, a closure element is formed on the spike between the head element and the needle element bearing sealingly against the cannula outlet opening in the membrane-piercing opening position of the spike.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: September 1, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rolf Lier, Herbert Densky
  • Patent number: 5649648
    Abstract: A package for free-flowing products comprising a product container and a closable applicator point fitted on its outlet aperture provides precise metering of the quantity of product expelled regardless of the level in the package, and while ensuring easy handling. The product container consists of an extruded receptacle of aluminum having externally depressible walls which spring back when the pressure is released.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: July 22, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rolf Lier, Herbert Densky
  • Patent number: D498146
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: November 9, 2004
    Assignee: Omni Technic GmbH
    Inventors: Herbert Densky, Rolf Lier, Werner Spillmann
  • Patent number: D338159
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: August 10, 1993
    Assignee: Omni Technic GmbH
    Inventors: Herbert Densky, Rolf Lier, Werner Spillmann