Patents by Inventor Peter Nagel

Peter Nagel 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).

  • Apparatus for the production of magnetic recording media in tape form
    Patent number: 4333418
    Abstract: Magnetic recording media in which, following application of the magnetic dispersion to a web of tape base material, the magnetic particles are oriented in a preferred direction and the magnetic dispersion is dried to fix the magnetic particles in their oriented position. To assist the orienting action of the orientation magnet, a blanket is located between the latter and the coating device, which blanket is caused to make sliding contact with the applied magnetic layer.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: June 8, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Nagel, Klaus Schoettle, Reinrich Wittkamp, Karl Hauck
  • Process for the manufacture of magnetic recording media
    Patent number: 4201486
    Abstract: A process and apparatus for the manufacture of magnetic recording media, in which, immediately before the magnetic dispersion is applied to a base, the dispersion is subjected to shear by means of a disc rotatably mounted in a housing, by introducing it at the center of rotation of the disc and forcing it through a gap formed between the face of the disc and the wall of the housing, which gap tapers toward the rim of the disc.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: May 6, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Huebner, Job-Werner Hartmann, Friedrich Domas, Peter Nagel, Paul Deigner, Eberhard Koester, Hans Hauser
  • Roller system for continuous transport of webs of sheeting
    Patent number: 4029249
    Abstract: A high-speed roller system for transporting webs of sheeting, preferably for coating the same with a magnetic layer, comprising a suction roller for control of the speed of the web, which suction roller has a surface containing grooves, preferably rhombic grooves, in which the perforations for sucking the sheeting are disposed, preferably at the points of intersection, the ratio of the total cross-sectional area of the perforations to the total surface area of the roller being from 0.7 to 3%.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: June 14, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Nagel, Werner Grau, Hermann Maier, Heinrich Wittkamp, Roland Falk, Paul Willmann