Patents by Inventor Jorge Wellmann

Jorge Wellmann 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: 5849365
    Abstract: The invention relates to a method for the production and repair of multicoat special-effect coatings, in which the basecoats is produced exclusively by elecrostatic ?sic! spraying, a coating material with a specific rheological behavior is employed as the basecoats and the repair is carried out with the aid of a spray application process in which a spray jet is produced which is distinguished in thatat most 40% of the coating droplets passing a measurement point which lies at the center of the spray jet and 300 mm away from the nozzle have a diameter which is less than 20 .mu.m and at least 5% of the coating droplets have a diameter which is greater than 60 .mu.m,at least 20% of the coating droplets passing the measurement point have a speed which is less than 6 m/s and at most 30% of the coating droplets have a speed of more than 10 m/s, andthe coating droplets have a momentum which is equal to at least 4.times.10.sup.-5 g cm s.sup.
    Type: Grant
    Filed: June 6, 1998
    Date of Patent: December 15, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Heinz Topfel, Ewald Bischoff, Harry Libutzki, Jorge Wellmann, Dieter Herbst, Hans-Joachim Streitberger
  • Patent number: 5820986
    Abstract: The invention relates to a method for the production and repair of multicoat special-effect coatings, in which the basecoat is produced exclusively by elecrostatic spraying, a coating material with a specific rheological behavior is employed as the basecoat and the repair is carried out with the aid of a spray application process in which a spray jet is produced which is distinguished in thatat most 40% of the coating droplets passing a measurement point which lies at the center of the spray jet and 300 mm away from the nozzle have a diameter which is less than 20 .mu.m and at least 5% of the coating droplets have a diameter which is greater than 60 .mu.m,at least 20% of the coating droplets passing the measurement point have a speed which is less than 6 m/s and at most 30% of the coating droplets have a speed of more than 10 m/s, andthe coating droplets have a momentum which is equal to at least 4.times.10.sup.-5 g cm s.sup.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: October 13, 1998
    Assignee: BASF Lacke + Farben AG
    Inventors: Heinz Topfel, Ewald Bischoff, Harry Libutzki, Jorge Wellmann, Dieter Herbst, Hans-Joachim Streitberger