Patents by Inventor Emmerich Sackers

Emmerich Sackers 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: 6776168
    Abstract: The invention relates to a high performance cigarette filter on the basis of cellulose ester fibers or filaments which can be mechanically disintegrated. The inventive high-performance cigarette filter is characterized in that a) the fiber weight (or filament weight)/draw resistance ratio S based on the filament titer is greater than approximately 0.7, the S value being calculated according to the formula S=(mA/&Dgr;P7.8/dpf[10 m/daPA], wherein mA refers to the fiber weight, &Dgr;P refers to the draw resistance and dpf represents the filament titer and for the draw resistance the value calculated for a diameter of 7.8 mm is inserted, b) the residual crimping value of the filter material does not exceed the value 1.45, c) the fiber weight amounts to maximally 10 mg/mm of the filter length, and d) the hardness of the cigarette filter is higher than approximately 90% filtrona hardness.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: August 17, 2004
    Assignee: Rhodia Acetow GmbH
    Inventors: Eberhard Teufel, Günter Maurer, Emmerich Sackers